Best Watercool Aio Liquid Coolers: 15 Models Compared
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Finding the right watercool aio liquid cooler component requires matching exact hardware specifications to your system. Watercool supplies custom loop parts, including CPU water blocks, replacement baseplates, pump bases, and mounting brackets in copper, acetal, and acrylic without integrated lighting.
The Watercool HEATKILLER IV Intel CPU Backplate ranks highest because it provides dedicated mounting reinforcement for Intel 115x and 1200 motherboards. This guide compares 15 products based entirely on published listing specifications so you can identify the exact socket fit for your build.
Quick picks
Our 15 picks
Watercool HEATKILLER IV Intel CPU Backplate
Best for: Intel 115x and 1200 HEATKILLER IV builds
- Socket Compatibility
- Intel 115x/1200
- Weight
- 0.32 kilograms
This mounting plate is an accessory for the HEATKILLER IV CPU water cooler. You secure it behind Intel motherboards using socket 1150, 1151, 1155, 1156, or 1200. The package supplies one silver backplate along with four installation washers. It weighs 0.32 kilograms to reinforce the socket area during assembly. You will find it suits builders mounting a HEATKILLER IV block to supported Intel platforms.
Pros
- Fits Intel sockets 1150, 1151, 1155, 1156, and 1200
- Includes four dedicated installation washers
- Weighs 0.32 kilograms for rigid socket support
Cons
- Lacks compatibility with AMD sockets
- Mounting accessory only, not a complete cooling block
- No listed support for Intel LGA 1700 motherboards
Good fit if
- You use a HEATKILLER IV block on an Intel 115x or 1200 socket.
- You need dedicated mounting hardware with four included washers.
Skip if
- You run an AMD processor platform.
- You need a complete liquid cooling block rather than a bracket.
Verdict: Watercool HEATKILLER IV Intel CPU Backplate provides dedicated mounting reinforcement for Intel 115x and 1200 motherboards. It pairs directly with HEATKILLER IV water blocks requiring stable rear bracket installation.
Watercool HEATKILLER IV Basic AM4 Acetal CPU Block
Best for: AMD AM4 custom loop cooling builds
- Socket Compatibility
- AM4
- Material
- Acetal
- Dimensions
- 2.6 × 2.32 × 0.67 inches
- Weight
- 0.32 kilograms
View on Amazon: Watercool HEATKILLER IV Basic AM4 Acetal CPU Block
This CPU water block is designed for custom liquid cooling loops on AMD Socket AM4 motherboards. It features black acetal construction with an internal micro fin cooling structure and enlarged jet passages. Measuring 2.6 inches long by 2.3 inches wide and weighing 0.32 kilograms, it fits compact socket areas. You will find it suitable if you build an AMD AM4 system and need a dedicated acetal water block with high flow paths.
Pros
- Micro fin cooling structure increases liquid contact surface
- High-flow design with enlarged jet structure and receptacles
- Compact 0.67-inch height profile
- Lightweight 0.32-kilogram black acetal build
Cons
- Socket support limited solely to AMD AM4
- No AM5 or Intel socket mounting included in specifications
Good fit if
- You run an AMD AM4 motherboard in your custom liquid cooling setup.
- You prefer an opaque black acetal top over acrylic.
- You need a low-profile CPU block measuring under 0.7 inches tall.
Skip if
- You use an Intel processor or newer AMD socket such as AM5.
- You want a transparent acrylic block to view coolant flow.
Verdict: Watercool HEATKILLER IV Basic AM4 Acetal CPU Block delivers targeted cooling for Socket AM4 processors using a micro-fin base and high-flow jet design. Its compact acetal build makes it a dependable choice for non-RGB AMD custom loops.
Watercool HEATKILLER IV Basic AM4 CPU Block
Best for: AMD AM4 custom loop builds
- Socket Compatibility
- AM4
- Material
- Acrylic
- Dimensions
- 5.51 × 4.33 × 1.97 inches
- Weight
- 0.31 kilograms
This is a dedicated CPU water block constructed from clear acrylic for custom cooling loops. It features compatibility with AMD AM4 sockets, a high-flow internal design with enlarged jet structures, and fine micro fins for fluid heat dissipation. Weighing 0.31 kg, this component fits builders assembling an AMD AM4 system who want a transparent block top to monitor coolant flow directly within their setup.
Pros
- Clear acrylic body allows visual inspection of coolant
- High-flow design with enlarged jet structures and receptacles
- Fine micro fins expand cooling fluid contact area
- Dedicated mounting configuration for AMD AM4 sockets
Cons
- Socket support is limited to AMD AM4
- Requires a separate pump, radiator, and tubing setup
Good fit if
- You build an open-loop liquid cooling system using an AMD AM4 motherboard.
- You prefer a transparent acrylic top to view coolant movement.
Skip if
- You use an Intel processor or an AMD socket other than AM4.
- You need a self-contained all-in-one cooler with an integrated pump.
Verdict: Watercool HEATKILLER IV Basic AMD Acrylic Water Block delivers high-flow AM4 cooling performance through a dedicated acrylic build with enlarged jet passages. It serves as a focused cooling block for custom loop configurations on compatible AMD boards.
Watercool HEATKILLER IV PRO Acetal CPU Water Block
Best for: custom AMD liquid cooling loops
- Socket Compatibility
- AM4, AM5
- Material
- Acetal
- Dimensions
- 2.32 × 2.6 × 0.67 inches
- Weight
- 0.32 kilograms
View on Amazon: Watercool HEATKILLER IV PRO Acetal CPU Water Block
This CPU water block uses an acetal top and an integrated jet cooling structure without a separate jet plate. It mounts directly to AMD sockets, covering AM4, AM5, and legacy pinouts down to socket 939. Measuring 2.32 by 2.60 inches with a 0.67-inch height, it supports large 16/10 and 19/13 fittings. You get a high-flow block built specifically for custom AMD liquid cooling loops.
Pros
- Integrated jet design eliminates separate jet plate
- Supports AMD sockets from 939 through AM4 and AM5
- Clears wide 16/10 and 19/13 liquid cooling fittings
- Compact 0.67-inch overall installed height
Cons
- Lacks Intel socket mounting hardware
- No integrated lighting features included
Good fit if
- You build a custom loop on an AMD motherboard.
- You run thick 16/10 or 19/13 water cooling tubing.
- You want an acetal block with direct-jet internal routing.
Skip if
- You use an Intel desktop platform.
- You need a complete all-in-one cooler with pump and radiator included.
Verdict: Watercool HEATKILLER IV PRO AMD Acetal CPU Block delivers high-flow cooling with an integrated jet design tailored for AMD sockets. It supports oversized tubing fittings within a 0.67-inch profile.
Watercool HEATKILLER IV PRO Acrylic AMD Water Block
Best for: AMD custom liquid cooling loop builders
- Socket Compatibility
- AM4, AM5
- Material
- Acrylic
- Dimensions
- 5.51 × 4.33 × 1.97 inches
- Weight
- 10.9 ounces
View on Amazon: Watercool HEATKILLER IV PRO Acrylic AMD Water Block
The Watercool HEATKILLER IV PRO AMD Acryl is a dedicated CPU water block designed for custom loops. It features an acrylic top with copper coloring, an integrated jet structure without a separate jet plate, and clearance for 16/10 and 19/13 fittings. It weighs 0.68 pounds and mounts to AMD sockets including AM4 and AM5. You get a direct-fit cooling block built specifically for AMD-based custom liquid cooling setups.
Pros
- Integrated jet structure with no separate jet plate
- Broad AMD compatibility covering AM4, AM5, and legacy sockets
- Supports large 16/10 and 19/13 tubing fittings
- Lightweight construction at 0.68 pounds
Cons
- No Intel socket hardware included
- Requires a separate standalone pump and radiator loop
Good fit if
- You build a custom liquid cooling loop on an AMD AM4 or AM5 processor.
- You plan to use large 16/10 or 19/13 compression fittings.
Skip if
- You use an Intel CPU platform.
- You need a complete all-in-one unit with a built-in pump and radiator.
Verdict: Watercool HEATKILLER IV PRO AMD Acryl CPU Block delivers high-flow cooling for AMD AM4 and AM5 platforms using an integrated jet design. It suits builders who need a dedicated acrylic block with wide fitting compatibility for custom loops.
Watercool HEATKILLER Tube Acetal DDC Base
Best for: HEATKILLER Tube DDC pump integration
- Pump Compatibility
- DDC
- Weight
- 6.4 ounces
This component is a replacement reservoir base engineered for any Watercool HEATKILLER Tube unit. Machined from Acetal plastic and weighing 0.4 pounds, it supports a single DDC pump directly beneath your reservoir. If you need to mount a DDC pump or replace a worn bottom section in your custom loop setup, this unit integrates directly into your compatible modular hardware without requiring full reservoir replacement.
Pros
- Machined from Acetal material
- Directly supports a single DDC pump
- Compatible with any Watercool HEATKILLER Tube reservoir
- Lightweight build at 0.4 pounds
Cons
- Only compatible with DDC pumps
- Does not include the reservoir tube or pump
Good fit if
- You need a replacement base for a Watercool HEATKILLER Tube reservoir.
- You plan to mount a single DDC pump directly to your reservoir.
Skip if
- You use a D5 pump rather than a DDC unit.
- You need an entire standalone reservoir rather than a spare base part.
Verdict: Watercool HEATKILLER Tube DDC Bottom is an Acetal replacement base designed to integrate a single DDC pump with any HEATKILLER Tube reservoir.
Watercool HEATKILLER IV Basic Copper Baseplate
Best for: HEATKILLER IV Basic block repairs
- Material
- Copper
- Weight
- 3.21 ounces
View on Amazon: Watercool HEATKILLER IV Basic Copper Baseplate
This replacement baseplate from Watercool is designed specifically for your HEATKILLER IV Basic CPU water block. Made from solid copper, it restores thermal transfer if your original plate becomes scratched, warped, or dented. Weighing approximately 0.2 pounds, this part gives you a direct swap without requiring a full block replacement. It suits you if you already maintain a Basic block and need to service the contact surface without buying extra hardware.
Pros
- Solid copper construction for CPU heat transfer
- Direct compatibility with all HEATKILLER IV Basic CPU water blocks
- Serves as an exact replacement for scratched or dented plates
Cons
- Limited compatibility restricted only to Basic series blocks
- Includes only the bare baseplate without mounting hardware or seals
Good fit if
- You need to replace a damaged or scratched plate on a HEATKILLER IV Basic block.
- You want a solid copper contact plate to restore thermal contact.
Skip if
- You own a HEATKILLER IV PRO model or a different brand block.
- You need an entire functional liquid cooling block assembly.
Verdict: Watercool HEATKILLER IV Basic Copper Baseplate restores your existing Basic water block to full functionality with solid copper construction. It provides an exact-fit replacement surface when your current cold plate suffers physical damage.
Watercool HEATKILLER IV PRO Copper Bottom Plate
Best for: repairing damaged HEATKILLER IV PRO water blocks
- Material
- Copper
- Weight
- 3.2 ounces
View on Amazon: Watercool HEATKILLER IV PRO Copper Bottom Plate
This component is a replacement copper baseplate designed specifically for Watercool HEATKILLER IV PRO CPU water blocks. Weighing 0.2 pounds, it replaces scratched, dented, or damaged original plates without requiring a whole new water block. Solid copper construction draws heat directly from your CPU. It fits any HEATKILLER IV PRO block, making it ideal if you need to repair an existing custom loop setup while maintaining your current cooling hardware.
Pros
- Solid copper construction
- Compatible with all Watercool HEATKILLER IV PRO CPU water blocks
- Replaces scratched or damaged original plates
- Lightweight at 0.2 pounds
Cons
- Spare replacement part only, not a complete water block
- Not compatible with HEATKILLER IV BASIC water blocks
Good fit if
- You need to replace a damaged or scratched plate on a HEATKILLER IV PRO block.
- You want a solid copper baseplate that weighs 0.2 pounds.
Skip if
- You need a complete CPU water block or an all-in-one cooler unit.
- You own a non-PRO Watercool CPU water block.
Verdict: Watercool HEATKILLER IV PRO Copper Bottom Plate is a dedicated solid copper replacement part for damaged HEATKILLER IV PRO CPU blocks. It lets you restore heat transfer without replacing your entire water block assembly.
Watercool HEATKILLER IV PRO Acetal CPU Water Block
Best for: AMD custom loops needing durable acetal construction
- Socket Compatibility
- AM4, AM5
- Material
- Acetal
- Dimensions
- 5.51 × 4.33 × 1.97 inches
- Weight
- 11.2 ounces
View on Amazon: Watercool HEATKILLER IV PRO Acetal CPU Water Block
This is an AMD-dedicated CPU liquid cooling block built with an acetal top and a copper base. It features an integrated jet structure without a separate jet plate to support high-flow loops. The unit mounts to AMD sockets ranging from legacy sockets through AM4 and AM5. You get direct support for large 16/10 and 19/13 fittings, making it a solid choice if you build custom loops for AMD rigs.
Pros
- Integrated jet design eliminates the separate jet plate
- Wide AMD compatibility spanning socket 939 through AM4 and AM5
- Direct fit for large 16/10 and 19/13 tubing fittings
- High-flow internal design with enlarged jet structure and receptacles
Cons
- No mounting support for Intel sockets
- No integrated lighting or transparent coolant window
Good fit if
- You run an AMD processor on socket AM4, AM5, or legacy AMD platforms.
- You use wide 16/10 or 19/13 tube fittings in your cooling loop.
- You want a durable acetal top with copper thermal design.
Skip if
- You run an Intel processor requiring LGA socket mounting.
- You want a clear acrylic block to view coolant flow.
Verdict: Watercool HEATKILLER IV PRO AMD Acetal CPU Block provides strong flow rates and broad AMD socket support via an integrated jet design. It is a dependable component for builders running AMD custom water loops.
Watercool HEATKILLER IV Threadripper Mounting Bolt
Best for: single bolt replacement on Threadripper blocks
- Weight
- 0.8 ounces
View on Amazon: Watercool HEATKILLER IV Threadripper Mounting Bolt
This is a replacement mounting bolt designed for Watercool HEATKILLER IV PRO for Threadripper CPU water blocks. Constructed from nickel-plated brass, the component weighs 0.05 pounds and comes in a nickel finish. The package includes one single bolt. If you lost or damaged hardware from an existing Threadripper block assembly, this individual piece lets you complete your setup.
Pros
- Nickel-plated brass construction
- Dedicated fit for HEATKILLER IV PRO for Threadripper water blocks
- Lightweight 0.05-pound design
Cons
- Includes only one single mounting bolt
- Incompatible with non-Threadripper CPU water blocks
Good fit if
- You need a single replacement bolt for a HEATKILLER IV PRO Threadripper block.
- You require nickel-plated brass mounting hardware.
Skip if
- You need a full four-bolt mounting kit.
- You use an Intel or mainstream AMD socket block.
Verdict: Watercool HEATKILLER IV Threadripper Mounting Bolt serves as an exact nickel-plated brass spare for a damaged or missing Threadripper block fastener. It gives you an individual factory replacement piece without extra unused hardware.
Watercool HEATKILLER IV Threadripper Mounting Hardware
Best for: Threadripper water block mounting replacement
- Weight
- 4.8 ounces
View on Amazon: Watercool HEATKILLER IV Threadripper Mounting Hardware
This mounting hardware kit provides replacement components for your Watercool HEATKILLER IV PRO Threadripper CPU water block. Built from nickel-plated brass, the package includes four dedicated mounting bolts and four tension springs. It weighs 0.3 pounds and comes in a nickel finish. You should consider this set if you need spare or replacement mounting gear specifically for an AMD Threadripper cooling loop setup.
Pros
- Nickel-plated brass construction
- Includes four mounting bolts
- Includes four tension springs
- Total weight of 0.3 pounds
Cons
- Fits only HEATKILLER IV PRO Threadripper water blocks
- Does not include a water block or thermal paste
Good fit if
- You need replacement bolts and springs for a HEATKILLER IV PRO Threadripper block.
- You want durable nickel-plated brass mounting parts for your CPU cooler.
Skip if
- You use mainstream Intel LGA or AMD sockets.
- You require a complete CPU water block rather than mounting spares.
Verdict: Watercool HEATKILLER IV Threadripper Mounting Hardware supplies genuine nickel-plated replacement bolts and springs for your Threadripper CPU block. It secures your cooler directly using factory specifications.
Watercool HEATKILLER IV Basic Intel CPU Block
Best for: Intel LGA 1X00 loops using oversized fittings
- Socket Compatibility
- Intel LGA 1X00
- Dimensions
- 3.94 × 1.97 × 0.5 inches
View on Amazon: Watercool HEATKILLER IV Basic Intel CPU Block
The Watercool HEATKILLER IV Basic Intel CPU Block is a dedicated liquid cooling component designed for Intel LGA 1X00 processors. It features a tool-less Easy-Mount-System and a wide 25mm port distance that accommodates extra large fittings. The cold plate utilizes thin fins and an enlarged jet plate nozzle to boost flow rates and surface area. This block suits your build if you want high-flow Intel cooling without mounting tools.
Pros
- Tool-less Easy-Mount-System for installation
- 25mm port distance accommodates extra large fittings
- Bigger jet plate nozzle and channel layout reduce clogging
- Thin cold plate fins increase surface area for heat transfer
Cons
- Restricted to Intel LGA 1X00 sockets
- Requires separate radiator, pump, and reservoir components
Good fit if
- You run an Intel LGA 1X00 processor platform.
- You build with large-diameter fittings requiring 25mm port clearance.
- You prefer tool-less mounting hardware for processor block installation.
Skip if
- You use an AMD CPU socket.
- You want an all-in-one closed loop with pre-attached radiator and tubing.
Verdict: Watercool HEATKILLER IV Basic Intel CPU Block delivers low-restriction fluid flow and tool-less mounting for LGA 1X00 setups. Its 25mm port spacing makes it a practical pick for custom loops using bulky fittings.
Watercool HEATKILLER IV PRO Intel CPU Block
Best for: Intel LGA 1X00 black acetal loops
- Socket Compatibility
- Intel LGA 1X00
- Material
- Acetal
- Dimensions
- 19.7 × 19.7 × 11 inches
- Weight
- 1 pounds
The Watercool HEATKILLER IV PRO Intel Acetal Block is a dedicated CPU water block designed for Intel LGA 1X00 sockets. Built with an acetal top and a black finish, it weighs 1 pound for your custom loop setup. If you run a compatible Intel motherboard and want a solid acetal design without transparent acrylic or integrated lighting, this block provides standard mounting for your liquid cooling hardware.
Pros
- Built with durable acetal material
- Designed for Intel LGA 1X00 socket compatibility
- Clean black finish
- Lightweight 1-pound construction
Cons
- Lacks AMD socket compatibility
- No integrated RGB lighting included
- Opaque acetal prevents viewing coolant flow
Good fit if
- You build a custom loop on an Intel LGA 1X00 motherboard.
- You prefer a solid black acetal aesthetic over transparent acrylic.
Skip if
- You use an AMD CPU platform.
- You require transparent housing or integrated lighting in your block.
Verdict: Watercool HEATKILLER IV PRO Intel Acetal Block offers dedicated Intel LGA 1X00 compatibility in a clean, black acetal construction. It gives you a focused, non-illuminated cooling component for your Intel custom loop.
Watercool HEATKILLER IV PRO Intel LGA 1X00 CPU Block
Best for: Intel LGA 1X00 custom loop builds
- Socket Compatibility
- Intel LGA 1X00
- Dimensions
- 19.7 × 19.7 × 11 inches
View on Amazon: Watercool HEATKILLER IV PRO Intel LGA 1X00 CPU Block
This CPU water block fits Intel LGA 1X00 sockets in custom liquid cooling systems. It features a tool-less Easy-Mount-System alongside a cold plate with thin cooling fins for heat dissipation. The 25mm port distance provides clearance for extra-large fittings. A widened jet plate nozzle supports higher flow and reduces clogging risks. You get a solid fit for Intel builds.
Pros
- Tool-less Easy-Mount-System
- 25mm port spacing accommodates extra-large fittings
- Enlarged jet plate nozzle and channel layout
Cons
- Compatible only with Intel LGA 1X00 sockets
- Requires separate radiator, pump, and tubing
Good fit if
- You run an Intel LGA 1X00 motherboard.
- You use extra-large fittings needing 25mm port spacing.
- You want tool-less block installation.
Skip if
- You use an AMD processor.
- You need an all-in-one cooler with an integrated pump.
Verdict: Watercool HEATKILLER IV PRO Intel LGA 1X00 CPU Block delivers wide port spacing and tool-less mounting for custom loops. It optimizes flow and thermal contact for compatible Intel motherboards.
Watercool HEATKILLER IV PRO Copper/Nickel Block
Best for: Intel LGA 1X00 custom water cooling loops
- Socket Compatibility
- Intel LGA 1X00
- Material
- Copper
- Dimensions
- 2.6 × 0.67 × 2.32 inches
- Weight
- 1.3 pounds
View on Amazon: Watercool HEATKILLER IV PRO Copper/Nickel Block
This is a custom CPU water block built for Intel LGA 1X00 sockets. It features a copper body with a nickel finish and polished stainless steel brackets. Two standard G1/4-inch ports handle your custom loop fittings. With a compact profile of 2.6 by 0.67 by 2.32 inches and a 1.3-pound weight, you get a dedicated liquid cooling block. It suits you if you build an Intel system using custom liquid tubing.
Pros
- Copper construction with nickel finish and stainless steel brackets
- Two standard G1/4-inch threaded ports
- Designed specifically for Intel LGA 1X00 sockets
- Compact dimensions of 2.6 x 0.67 x 2.32 inches
Cons
- Requires a separate custom loop rather than an all-in-one setup
- Lacks mounting hardware for AMD sockets
Good fit if
- You have an Intel LGA 1X00 socket motherboard.
- You are assembling a custom water cooling loop using G1/4-inch fittings.
- You want a copper and nickel block with stainless steel mounting brackets.
Skip if
- You need an AMD socket compatible water block.
- You want an all-in-one cooler with an included pump and radiator.
Verdict: Watercool HEATKILLER IV PRO Copper/Nickel Block delivers a dedicated copper cooling block with G1/4-inch threading for Intel LGA 1X00 custom loops. It provides precise socket compatibility without extra all-in-one accessories.
Specifications side by side
| Spec | Watercool HEATKILLER IV Intel CPU Backplate | Watercool HEATKILLER IV Basic AM4 Acetal CPU Block | Watercool HEATKILLER IV Basic AM4 CPU Block | Watercool HEATKILLER IV PRO Acetal CPU Water Block | Watercool HEATKILLER IV PRO Acrylic AMD Water Block | Watercool HEATKILLER Tube Acetal DDC Base | Watercool HEATKILLER IV Basic Copper Baseplate | Watercool HEATKILLER IV PRO Copper Bottom Plate | Watercool HEATKILLER IV PRO Acetal CPU Water Block | Watercool HEATKILLER IV Threadripper Mounting Bolt | Watercool HEATKILLER IV Threadripper Mounting Hardware | Watercool HEATKILLER IV Basic Intel CPU Block | Watercool HEATKILLER IV PRO Intel CPU Block | Watercool HEATKILLER IV PRO Intel LGA 1X00 CPU Block | Watercool HEATKILLER IV PRO Copper/Nickel Block |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Socket Compatibility | Intel 115x/1200 | AM4 | AM4 | AM4, AM5 | AM4, AM5 | not specified | not specified | not specified | AM4, AM5 | not specified | not specified | Intel LGA 1X00 | Intel LGA 1X00 | Intel LGA 1X00 | Intel LGA 1X00 |
| Material | not specified | Acetal | Acrylic | Acetal | Acrylic | not specified | Copper | Copper | Acetal | not specified | not specified | not specified | Acetal | not specified | Copper |
| Pump Compatibility | not specified | not specified | not specified | not specified | not specified | DDC | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified |
| Weight | 0.32 kilograms | 0.32 kilograms | 0.31 kilograms | 0.32 kilograms | 10.9 ounces | 6.4 ounces | 3.21 ounces | 3.2 ounces | 11.2 ounces | 0.8 ounces | 4.8 ounces | not specified | 1 pounds | not specified | 1.3 pounds |
| Dimensions | not specified | 2.6 × 2.32 × 0.67 inches | 5.51 × 4.33 × 1.97 inches | 2.32 × 2.6 × 0.67 inches | 5.51 × 4.33 × 1.97 inches | not specified | not specified | not specified | 5.51 × 4.33 × 1.97 inches | not specified | not specified | 3.94 × 1.97 × 0.5 inches | 19.7 × 19.7 × 11 inches | 19.7 × 19.7 × 11 inches | 2.6 × 0.67 × 2.32 inches |
| Color | Silver | Black | Clear | Black | Copper | not specified | Copper | Copper | Copper | Nickel | Nickel | not specified | Black | not specified | Nickel |
| Model | 10013 | 18017 | 18016-2 | 18018 | 18019 | 30254 | not specified | not specified | 18015Â | not specified | not specified | 18076 | 1022413 | 18073 | 18070 |
Overview of the Watercool Lineup
Watercool divides its CPU water blocks by socket compatibility and housing material. If you use AMD AM4 or AM5 processors, options like the Watercool HEATKILLER IV PRO Acetal CPU Water Block provide durable acetal construction. For Intel builds, models like the Watercool HEATKILLER IV Basic Intel CPU Block support LGA 1X00 sockets. This core group suits builders assembling new custom loops.
The rest of the lineup covers pump integration and replacement hardware. The Watercool HEATKILLER Tube Acetal DDC Base attaches dedicated DDC pumps to tube reservoirs. For mounting stability and repairs, items like the Watercool HEATKILLER IV Intel CPU Backplate supply precise socket support. This category suits builders servicing existing setups or adding specific pump connections without replacing entire cooling blocks.
Where Watercool Fits Custom Loops
This range suits you if you build custom loops for AMD AM4, AM5, or Intel LGA 1X00 sockets. Physical footprints spread from a 0.05-pound Threadripper mounting bolt to a 1.3-pound copper and nickel CPU block with rectangular profiles as thin as 0.5 inches. None of the listed products include integrated RGB lighting, offering only bare acetal, acrylic, copper, or nickel finishes. The lineup leaves clear gaps. You will not find complete all-in-one closed-loop coolers, radiators, tubing, or cooling fans. Watercool focuses strictly on individual CPU blocks, DDC pump bases, and replacement hardware rather than packaged units.
How to Choose Watercool Loop Hardware
-
Matching Your AMD Socket
Check the exact AMD socket listing before selecting a CPU water block. Basic series AMD models strictly fit Socket AM4 motherboards. If you build on an AM5 motherboard, choose a PRO model like the Watercool HEATKILLER IV PRO Acetal CPU Water Block that explicitly lists AM4 and AM5 socket support. Selecting an AM4-only block limits your upgrade path to older motherboards. Matching the socket specification ensures the block bracket holes align with the factory AMD backplate mounting positions on your board.
-
Checking Port Spacing Dimensions
Measure the outer diameter of your liquid cooling tube fittings before picking an Intel water block. Large compression fittings require adequate center-to-center distance between inlet and outlet threads to avoid physical contact. The Watercool HEATKILLER IV Basic Intel CPU Block provides 25mm port spacing to fit bulky compression collars. If you use standard G1/4-inch fittings with wide outer walls, verify that your chosen block profile allows clearance. Compact spacing can force you to use angled adapters or swap to smaller fittings.
-
Selecting Dedicated Pump Bases
Identify your pump motor model before buying reservoir base components. Watercool produces distinct mounting bases designed for specific pump standards rather than universal brackets. The Watercool HEATKILLER Tube Acetal DDC Base integrates exclusively with a single DDC pump motor and attaches directly to a HEATKILLER Tube reservoir. Inspect your pump unit to ensure it is a DDC variant rather than a D5 or standalone pump. Selecting an incorrect pump base prevents mechanical assembly and liquid sealing of your reservoir loop.
-
Replacing Damaged Cold Plates
Inspect existing water blocks for scratched or corroded contact surfaces before replacing the entire cooling unit. Solid copper replacement plates allow you to service a damaged thermal interface directly. The Watercool HEATKILLER IV Basic Copper Baseplate matches the dimensions and internal micro-structure of original Basic series blocks. You must check whether your block is a Basic or PRO edition, as baseplates do not interchange across these tiers. Installing the correct factory baseplate restores heat transfer without disturbing your existing top housing.
-
Choosing Replacement Mounting Fasteners
Determine how many mounting pieces your build requires before ordering socket hardware. If you misplace or strip one fastener, buying an individual part prevents accumulating unused components. The Watercool HEATKILLER IV Threadripper Mounting Bolt provides a single nickel-plated brass fastener for direct repair. When you need complete replacement springs and bolts to restore balanced mounting pressure across the processor, pick a full hardware kit instead. Checking hardware counts ensures you have the exact screws needed to secure your block.
Frequently asked questions
Are Watercool HEATKILLER CPU coolers all-in-one units or custom loop blocks?
Watercool HEATKILLER models are dedicated custom loop components rather than pre-assembled all-in-one units. You integrate individual CPU water blocks, like the HEATKILLER IV PRO Intel LGA 1X00 or Basic AM4, into open loops containing separate pumps, radiators, and tubing. Standalone hardware like the HEATKILLER Tube Acetal DDC Base lets you configure separate pump reservoirs directly instead of relying on closed factory cooling units.
Which Intel motherboards fit the Watercool HEATKILLER IV Intel CPU Backplate?
The Watercool HEATKILLER IV Intel CPU Backplate fits Intel Socket 115x and LGA 1200 motherboards. You use this dedicated silver bracket (model 10013) to reinforce the rear of your motherboard when mounting compatible HEATKILLER IV water blocks. It weighs 0.32 kilograms and provides rigid support, but you must verify that your board uses these specific sockets rather than newer LGA 1X00 platforms.
Can you replace a damaged cold plate on a HEATKILLER IV water block?
Yes, you can replace a damaged cold plate without purchasing an entirely new cooling block. Watercool offers the HEATKILLER IV Basic Copper Baseplate for Basic series units and the HEATKILLER IV PRO Copper Bottom Plate for PRO models. Both replacement plates weigh approximately 0.2 pounds and use solid copper construction to restore direct thermal transfer against your processor heat spreader.
What pump type works with the Watercool HEATKILLER Tube Acetal Base?
The Watercool HEATKILLER Tube Acetal Base works exclusively with standalone DDC pumps. Model 30254 is a dedicated acetal replacement base weighing 0.4 pounds that mounts to the bottom of any HEATKILLER Tube reservoir assembly. You use it to integrate your pump directly into the fluid reservoir without adding standalone mounting adapters or external brackets inside your PC chassis.
What threading standard do Watercool HEATKILLER IV water blocks use for loop fittings?
Watercool HEATKILLER IV CPU water blocks use industry-standard G1/4-inch threading. Models such as the HEATKILLER IV PRO Copper/Nickel Block (model 18070) feature these standard threads to support standard compression fittings and barb connectors. Additionally, blocks like the Basic Intel CPU Block provide 25mm port spacing to give you adequate clearance when you install larger custom loop tubing fittings.
What replacement mounting hardware is available for AMD Threadripper water blocks?
Watercool provides both complete mounting hardware sets and individual replacement fasteners for Threadripper water blocks. The HEATKILLER IV Threadripper Mounting Hardware kit weighs 0.3 pounds and includes nickel-plated bolts and tension springs. If you only lost a single fastener, the individual HEATKILLER IV Threadripper Mounting Bolt provides a single 0.05-pound nickel-plated brass spare to secure your block properly.
What top materials does Watercool offer on HEATKILLER IV water blocks?
Watercool provides CPU block tops constructed from acetal, acrylic, or copper. For example, the HEATKILLER IV Basic AM4 CPU Block uses a clear acrylic top, while the HEATKILLER IV Basic AM4 Acetal CPU Block uses black acetal. PRO models also provide acetal tops alongside full metal variants, such as the nickel-colored HEATKILLER IV PRO Copper/Nickel Block weighing 1.3 pounds.