Barrow or DIYhz? Water Cooling Parts Compared in 2026
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This barrow vs DIYhz water cooling part comparison looks at two distinct components for your loop. Both items serve essential roles in custom liquid cooling systems, but they address different needs. One is a pump top kit designed to manage heat from the pump itself. The other is a radiator built to dissipate heat from the coolant. Understanding their specific designs helps you choose the right piece for your build.
Key differences
| Aspect | Barrow D5 Pump Heatsink Top Kit | DIYhz 120mm 12-Pipe Aluminum Radiator |
|---|---|---|
| Component Type | Pump Heatsink Top Kit | Radiator Heat Exchanger |
| Pump Compatibility | D5 | not listed |
| Material | not listed | Aluminum |
| Size | 3.2 x 2.7 x 3.8 inches | 120mm (6.1 x 4.72 x 1.06 inches) |
Which one should you choose?
Choose Barrow D5 Pump Heatsink Top Kit if
- You are using a D5 pump and need a dedicated heatsink to cool it directly.
- You want a compact top kit that fits specific pump dimensions without requiring a large radiator footprint.
Choose DIYhz 120mm 12-Pipe Aluminum Radiator if
- You need to dissipate heat from the coolant loop using a standard 120mm fan setup.
- You prefer an aluminum radiator with black oxidation paint for improved thermal efficiency.
Verdict: Choose the Barrow kit if your primary goal is cooling the pump itself with a D5-specific mount. Pick the DIYhz radiator if you need to remove heat from the coolant using a standard 120mm fan configuration. They serve different parts of the loop, so your choice depends on whether you are cooling the pump or the fluid.
Barrow and DIYhz Cooling Specs
Component Type
You are comparing two very different pieces of hardware. The Barrow LD5HK-V1w is a pump heatsink top kit. It is designed to attach to a D5 pump to dissipate heat generated by the pump motor. The DIYhz 10424 is a radiator. It is a heat exchanger with twelve pipes made of aluminum. It is intended to cool the entire loop by transferring heat to the air via fans. You cannot use them interchangeably. One manages pump heat, while the other manages system heat.
Pump Compatibility
The Barrow kit is built specifically for D5 pumps. Its dimensions and mounting points align with this popular pump model. The DIYhz product is a radiator and does not connect to pumps directly. It has no pump compatibility listed. If you need a top for a D5 pump, the Barrow unit is the only valid choice here. The DIYhz item serves a different part of the loop entirely. This spec favors the Barrow kit for pump-specific needs.
Dimensions
The Barrow heatsink measures 3.8 inches in length, 3.2 inches in width, and 2.7 inches in height. It is a compact block. The DIYhz radiator is much larger. It measures 6.1 inches in length, 4.72 inches in width, and 1.06 inches in height. The radiator is wider and longer but thinner than the pump top. You need to check your case space for both. The radiator requires more linear space, while the pump top fits in tighter spots near the reservoir.
Material
The DIYhz radiator is constructed from pure aluminum fins. It uses black oxidation paint to increase thermal efficiency. The material is standard for aluminum radiators. The Barrow product data does not specify the metal used for the heatsink top. It only lists the color and model number. Without explicit material data for the Barrow unit, we cannot compare thermal conductivity or build substance directly. The DIYhz material is clearly aluminum.
Weight
Weight affects how your case supports the component. The Barrow pump heatsink weighs 5.6 ounces. It is lightweight and easy to mount. The DIYhz radiator weighs 7.83 ounces. It is also light, but its larger surface area means it may require more fan support. The Barrow unit is lighter overall. This matters if you are building a small form factor case with limited mounting points. The DIYhz radiator is slightly heavier due to its larger size.
Which barrow or diyhz part fits you
D5 pump owners needing dedicated cooling
If you use a D5 pump, this Barrow kit is built for it. The LD5HK-V1w attaches directly to manage pump heat. It measures 3.8 inches long and 3.2 inches wide. The unit weighs 5.6 ounces. It fits your specific pump model without requiring extra adapters or complex mounting solutions.
Users needing a 120mm radiator
This DIYhz radiator is a 120mm heat exchanger made of aluminum. It features 12 pipes and measures 6.1 inches by 4.72 inches. The thickness is 1.06 inches. It weighs 7.83 ounces. You need this component to dissipate heat from your coolant loop into the air using fans.
Builders mixing pump and radiator parts
You likely need both items for a complete loop. This choice highlights the radiator portion. The DIYhz unit handles the main heat rejection. Its aluminum fins and 12-pipe design are standard for 120mm slots. You will still need the Barrow pump top for the D5 pump itself.
The products compared
Barrow D5 Pump Heatsink Top Kit
Best for: D5 pump cooling in compact builds
- Pump Compatibility
- D5
- Dimensions
- 3.8 × 3.2 × 2.7 inches
- Weight
- 5.6 ounces
View on Amazon: Barrow D5 Pump Heatsink Top Kit Affiliate link
This Barrow heatsink is designed specifically for the D5 pump. It measures 3.8 inches long, 3.2 inches wide, and 2.7 inches high. The unit weighs 5.6 ounces. You need this part to keep your D5 pump cool during operation. It helps maintain stable temperatures for your custom loop. The design fits standard D5 pump tops.
Pros
- Compatible with D5 pumps
- Compact 3.8 x 3.2 x 2.7 inch size
- Lightweight at 5.6 ounces
Cons
- Only fits D5 pumps
- No mention of LED lighting
- Single pump compatibility only
Good fit if
- You use a D5 pump in your loop
- You need a compact heatsink for tight cases
- You want a lightweight cooling solution
Skip if
- You use a DDC pump instead
- You need RGB lighting effects
- You want to cool multiple pumps
Verdict: Barrow D5 Pump Heatsink is a small, lightweight cooling solution for D5 pumps. It fits users who need compact, pump-specific cooling without extra features.
DIYhz 120mm 12-Pipe Aluminum Radiator
Best for: small cases and lightweight builds
- Radiator Size
- 120mm
- Material
- Aluminum
- Dimensions
- 6.1 × 4.72 × 1.06 inches
- Weight
- 7.83 ounces
View on Amazon: DIYhz 120mm 12-Pipe Aluminum Radiator Affiliate link
This DIYhz radiator uses 12 aluminum pipes to move heat from your coolant to the fins. The black oxidation paint on the pure aluminum fins helps thermal efficiency. It measures 155 by 120 by 27 millimeters and weighs 222 grams. You get a compact unit that fits standard 120mm fans. It suits builders who need a lightweight, basic heat exchanger for their loop.
Pros
- 12 pipe construction for heat exchange
- Black oxidation paint on aluminum fins
- Compact 155 x 120 x 27mm size
- Lightweight at 222 grams
Cons
- Only includes the radiator, no fan
- Standard 1.06 inch thickness limits airflow
- No mention of G1/4 fittings included
Good fit if
- You need a lightweight radiator for a small case
- You are building a custom loop with separate fans
- You want a basic aluminum core for cost efficiency
Skip if
- You require a pre-assembled unit with fans included
- You need copper core for specific compatibility
- You want a thicker radiator for maximum cooling
Verdict: DIYhz 120mm Aluminum Radiator is a simple, lightweight heat exchanger for builders who supply their own fans. It fits small cases where weight and size matter more than maximum cooling potential.
Specifications side by side
| Spec | Barrow D5 Pump Heatsink Top Kit | DIYhz 120mm 12-Pipe Aluminum Radiator |
|---|---|---|
| Radiator Size | not stated | 120mm |
| Material | not stated | Aluminum |
| Pump Compatibility | D5 | not stated |
| Size | not stated | 120Mm |
| Dimensions | 3.8 × 3.2 × 2.7 inches | 6.1 × 4.72 × 1.06 inches |
| Weight | 5.6 ounces | 7.83 ounces |
| Color | Black | black-120mm |
| Model | LD5HK-V1w | 10424 |
Frequently asked questions
Can the Barrow D5 pump heatsink fit in a small case?
Yes, it is designed for compact builds. The unit measures 3.2 inches wide, 2.7 inches high, and 3.8 inches long. Its small footprint allows installation in tight spaces where standard cooling solutions might not fit. The lightweight design at 5.6 ounces also reduces strain on mounting points.
Does the DIYhz radiator come with fans included?
No, this radiator is a simple heat exchanger without integrated fans. You must supply your own fans to mount it. It is intended for builders who prefer to choose specific fan models for their airflow needs. The 120mm size is standard, making it easy to find compatible fans.
Is the Barrow pump top kit compatible with D5 pumps?
Yes, it is specifically compatible with D5 pumps. The model LD5HK-V1w is designed to attach directly to these pumps to dissipate heat. If you are using a D5 pump, this kit provides a dedicated cooling solution. It does not fit other pump types or brands outside of this specific compatibility.
What material is the DIYhz 120mm radiator made of?
The DIYhz 120mm radiator is made of aluminum. This material choice makes it lightweight, weighing only 7.83 ounces. Aluminum radiators are generally lighter than copper alternatives. This makes the unit suitable for small cases and builds where minimizing overall weight is a priority for the builder.
Which part is better for managing pump heat?
The Barrow D5 Pump Heatsink Top Kit is better for this task. It is a dedicated solution for cooling D5 pumps. The DIYhz radiator is a heat exchanger for the coolant loop, not for direct pump cooling. If your goal is to cool the pump motor itself, the Barrow kit is the correct component.
How thick is the DIYhz 120mm radiator?
The radiator is 1.06 inches thick. This slim profile is useful for cases with limited depth or specific fan mounting constraints. The overall dimensions are 6.1 inches long and 4.72 inches wide. The thin design helps it fit into smaller chassis without requiring excessive internal space.