Best Watercool Water Cooling Parts: 10 Models Compared
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
This guide reviews the best watercool water cooling parts to help you select components for your custom loop. Watercool offers a range of CPU blocks and backplates in various sizes, shapes, and materials, including acetal, acrylic, and copper options. Most models feature non-illuminated designs, though some include copper or nickel finishes. The top pick is the Watercool HEATKILLER IV Intel CPU Backplate, which leads due to its dedicated mounting reinforcement for Intel 115x and 1200 motherboards. We compared 10 products based strictly on the specifications published on the listings.
Quick picks
Our 10 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: AMD AM4 and AM5 high-flow builds
- 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
The Watercool HEATKILLER IV PRO is a CPU water block made from acetal for AMD AM4 and AM5 sockets. It features a high-flow design with integrated jets and supports 16/10 and 19/13 fittings. The block measures 2.6 inches wide and weighs 0.32 kilograms. This model suits users seeking reliable cooling with broad socket support and improved flow performance.
Pros
- Supports AMD AM4 and AM5 sockets
- High-flow design with integrated jet structure
- Compatible with 16/10 and 19/13 fittings
- Constructed from durable acetal material
Cons
- Limited to AMD sockets only
- No mention of integrated RGB lighting
- No mention of speed control or monitoring
Good fit if
- You use an AMD AM4 or AM5 processor
- You prefer high-flow tubing connections
- You want a durable acetal construction
Skip if
- You use an Intel LGA socket
- You require RGB lighting effects
- You need integrated pump control
Verdict: Watercool HEATKILLER IV PRO Acetal is a robust cooling solution for AMD builders. It fits users who prioritize flow performance and socket compatibility over smart features.
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 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 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 IV PRO Acetal CPU Water Block | 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 | AM4, AM5 | Intel LGA 1X00 | Intel LGA 1X00 | Intel LGA 1X00 | Intel LGA 1X00 |
| Material | not specified | Acetal | Acrylic | Acetal | Acrylic | Acetal | not specified | Acetal | not specified | Copper |
| Weight | 0.32 kilograms | 0.32 kilograms | 0.31 kilograms | 0.32 kilograms | 10.9 ounces | 11.2 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 | 5.51 × 4.33 × 1.97 inches | 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 | Copper | not specified | Black | not specified | Nickel |
| Model | 10013 | 18017 | 18016-2 | 18018 | 18019 | 18015Â | 18076 | 1022413 | 18073 | 18070 |
Watercool CPU Blocks Overview
Watercool organizes its lineup by socket type and base material. The HEATKILLER IV PRO Acetal and Acrylic blocks support AMD AM4 and AM5 sockets. These models prioritize high fluid flow and durable construction for custom loops. The HEATKILLER IV Basic AM4 Acetal offers a compact, non-illuminated solution for simpler builds.
Intel users can choose from several options like the HEATKILLER IV Basic Intel CPU Block. It features wide port spacing for bulky fittings. The HEATKILLER IV PRO Copper/Nickel Block provides precise thermal contact for LGA 1X00 platforms. The HEATKILLER IV Intel Backplate reinforces motherboard stability. You should match the material and socket compatibility to your specific cooling needs.
Who Watercool Parts Suit
Watercool targets builders focused on pure fluid dynamics and material durability. You will find compact, low-profile blocks for tight cases alongside larger acrylic units with wide port spacing for bulky fittings. The range covers both Intel LGA 1X00 and AMD AM4/AM5 sockets. Most models use acetal or acrylic for a clean, non-illuminated look. One copper block offers a traditional metallic finish. You will not find smart sensors or RGB lighting in this specific list. The brand suits those who prioritize flow rates and socket compatibility over digital features or complex mounting systems.
If you prefer air cooling specifications over liquid setups, you can compare clearance and fan specs across the best noctua CPU coolers.
How to Choose the Right Watercool Part
-
Match Your Processor Socket
Check your motherboard socket type before buying. Watercool offers blocks for Intel LGA 1X00 and AMD AM4 or AM5. The HEATKILLER IV PRO Acetal supports both AMD sockets. The HEATKILLER IV Basic AM4 Acetal fits only AM4. Intel users need specific LGA 1X00 models. Ensure the block matches your CPU socket exactly. Mismatched sockets prevent proper installation. Verify your motherboard model against the product specifications. This step ensures the cooling block will physically fit your processor.
-
Select Your Base Material
Choose between acetal, acrylic, or copper. Acetal models like the HEATKILLER IV Basic AM4 Acetal are compact and durable. They suit builders who want low-profile cooling. Acrylic blocks, such as the HEATKILLER IV Basic AM4, are larger and clear. They show fluid flow but take more space. Copper blocks offer direct thermal contact. The HEATKILLER IV PRO Copper/Nickel Block uses copper for heat transfer. Your choice affects case clearance and aesthetic preference. Pick the material that fits your case and loop style.
-
Check Fitting Port Spacing
Verify the distance between fluid ports. Your tubing fittings must align with these ports. The HEATKILLER IV Basic Intel CPU Block has 25mm port spacing. This spacing accommodates bulky fittings easily. Other models may have different dimensions. Measure your fittings before purchasing. Incorrect spacing causes stress on tubing connections. It can lead to leaks or difficult installations. Check the width and length specs. Ensure your chosen fittings fit the block ports comfortably. Proper spacing simplifies your custom loop assembly.
-
Consider Block Dimensions
Measure the block height and width. Low-profile blocks fit tight cases. The HEATKILLER IV Basic AM4 Acetal is 0.67 inches high. It clears tall RAM sticks. Larger acrylic blocks are taller and wider. The HEATKILLER IV PRO Acrylic AMD is 1.97 inches high. It may interfere with large air coolers or RAM. Check your case clearance and RAM height. Ensure the block fits without obstruction. Smaller blocks offer flexibility. Larger blocks may provide better aesthetics or flow. Measure your build space carefully.
-
Verify Backplate Requirements
Some blocks require a dedicated backplate. The HEATKILLER IV Intel CPU Backplate reinforces Intel 115x and 1200 motherboards. It pairs directly with specific HEATKILLER IV water blocks. Check if your block needs this part. Missing the backplate can damage your motherboard. It also affects mounting stability. Ensure you buy the correct backplate for your socket. This step is critical for Intel builds. AMD builds may not need this specific backplate. Verify compatibility before adding it to your cart.
Frequently asked questions
Does Watercool make an Intel backplate?
Yes, the HEATKILLER IV Intel CPU Backplate provides dedicated mounting reinforcement for Intel 115x and 1200 motherboards. This silver component weighs 0.32 kilograms and pairs directly with HEATKILLER IV water blocks. It ensures stable rear bracket installation for your custom loop setup.
Which Watercool block is best for AMD AM4?
The HEATKILLER IV Basic AM4 Acetal CPU Block delivers targeted cooling for Socket AM4 processors. It features a micro-fin base and high-flow jet design. This compact black unit weighs 0.32 kilograms and serves as a dependable choice for non-RGB AMD custom loops.
Are there acrylic options for AMD builds?
Yes, the HEATKILLER IV Basic AM4 CPU Block offers a dedicated acrylic build with enlarged jet passages. This clear unit measures 5.51 inches in length and weighs 0.31 kilograms. It serves as a focused cooling block for custom loop configurations on compatible AMD boards.
Does Watercool support the AM5 socket?
Yes, the HEATKILLER IV PRO Acetal CPU Water Block fits AMD AM4 and AM5 platforms. This black block weighs 0.32 kilograms and prioritizes flow performance. It suits users who need broad socket compatibility without relying on smart features for their custom loop.
What is the best Watercool block for Intel LGA 1X00?
The HEATKILLER IV PRO Copper/Nickel Block delivers a dedicated copper cooling block with G1/4-inch threading for Intel LGA 1X00 custom loops. This nickel-colored unit weighs 1.3 pounds and provides precise socket compatibility without extra all-in-one accessories for your build.
Which Watercool block has the widest port spacing?
The HEATKILLER IV Basic Intel CPU Block offers 25mm port spacing for tool-less mounting. This design makes it a practical pick for custom loops using bulky fittings. The unit measures 3.94 inches in length and delivers low-restriction fluid flow for LGA 1X00 setups.
Is there a black acetal block for Intel?
Yes, the 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. This model weighs 1 pound and provides a durable option for your Intel custom loop.
What material is the HEATKILLER IV PRO AMD Acrylic block?
The HEATKILLER IV PRO AMD Acrylic CPU Block is constructed from acrylic with a copper base. It delivers high-flow cooling for AMD AM4 and AM5 platforms. This unit weighs 10.9 ounces and suits builders who need wide fitting compatibility for their custom loops.