Best Heatsinks for 3D Printer in 2026: 8 Picks Ranked by Specs
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Finding the best heatsinks for 3D Printer electronics requires matching physical dimensions to your specific components. We compared 8 options based strictly on the specifications published on the listings. The Easycargo 9mm Anodized Heatsink leads because its compact 0.35-inch profile fits tightly spaced stepper motor drivers without adding bulk. This guide helps you decide which size and material suit your build. You will learn how aluminum or copper options handle passive heat dissipation for your motors and drivers. Focus on height and width to ensure a proper fit for your machine's internal layout.
Quick picks
The best fit for you
- You need to cool multiple stepper motor drivers Easycargo 9mm Anodized Heatsink The 0.35 by 0.47 inch aluminum profile fits many small chips with minimal space.
- You want a budget-friendly passive cooling option Easycargo 9mm Black Aluminum Heatsinks (30-Pack) This 9mm aluminum heatsink includes thermal tape for reliable heat dissipation without noise.
- You need extra height for stepper motor cooling Awxlumv 40mm Anodized Aluminum Heatsink 4-Pack The 0.79 inch height provides more surface area for passive cooling on motors.
- You prioritize copper conductivity for passive cooling Easycargo 40mm Copper Heatsink 2-Pack Copper offers superior thermal conductivity compared to aluminum for NEMA 17 motor cooling.
- You need quiet active cooling in tight spaces PANO-MOUNTS 40mm USB Fan with Aluminum Heatsink The integrated 40mm USB fan provides active airflow for small 3D printer parts.
Our 8 picks
Easycargo 9mm Anodized Heatsink
Best for: Cooling multiple stepper motor drivers
- Compatible Device
- 3D Printer (what this guide is about)
- Material
- Anodized Aluminum
- Cooling Method
- Passive
- Dimensions
- 0.35 x 0.35 x 0.47 inches
- Mounting Type
- 3M 8810 Thermal Adhesive Tape
This kit includes 30 anodized aluminum heatsinks designed for passive cooling on 3D printer stepper motor drivers. Each unit measures 9mm by 9mm by 12mm and weighs 1 gram. The base features pre-applied 3M 8810 thermal conductive adhesive tape for secure mounting. It is a practical solution for managing heat on chips like TMC2130 or DRV8825 without requiring active fans.
Pros
- Includes 30 individual aluminum heatsinks
- Pre-applied 3M 8810 thermal adhesive tape
- Compact 9mm x 9mm x 12mm dimensions
- Suitable for various stepper motor drivers
Cons
- Small 9mm footprint limits surface area
- Passive cooling only, no fan included
- Stepper motor drivers are not included
Good fit if
- You need to cool multiple driver chips
- You want pre-applied adhesive for easy installation
- You have limited space around the motherboard
Skip if
- You need active cooling with a fan
- You require heatsinks larger than 12mm in height
- You are looking for a single large heatsink
Verdict: Easycargo 3D Printer Heatsink Kit provides a high-volume, space-efficient cooling solution for 3D printer electronics. It fits users who need to cover many small chips with minimal profile and ready-to-use adhesive.
Easycargo 9mm Black Aluminum Heatsinks (30-Pack)
Best for: passive cooling of stepper motor drivers
- Compatible Device
- 3D Printer (what this guide is about)
- Material
- black aluminum
- Cooling Method
- passive cooling
- Dimensions
- 9mm x 9mm x 12mm
- Mounting Type
- pre-applied adhesive tape
- Features
- Thermal Tape
View on Amazon: Easycargo 9mm Black Aluminum Heatsinks (30-Pack)
You get 30 black aluminum heatsinks measuring 9mm x 9mm x 12mm. Each unit features pre-applied 3M 8810 thermal conductive adhesive tape for direct mounting. This kit provides passive cooling for stepper motor drivers like TMC2130 and DRV8825. It is designed for 3D printer electronics. The compact size fits tight spaces. You do not need additional mounting hardware. The adhesive backing simplifies installation on small modules.
Pros
- Includes 30 black aluminum heatsinks
- Pre-applied 3M 8810 thermal adhesive tape
- Compact 9mm x 9mm x 12mm dimensions
- Passive cooling for TMC2130 and DRV8825 drivers
Cons
- Passive cooling only, no fan included
- Small 9mm size limits heat dissipation
- Driver modules not included in kit
Good fit if
- You need passive cooling for stepper drivers
- You want pre-applied adhesive tape
- You require a bulk pack of 30 units
Skip if
- You need active cooling with a fan
- You require larger heatsink dimensions
- You want driver modules included
Verdict: Easycargo 9mm Aluminum Heatsink Kit offers a practical passive cooling solution for 3D printer stepper drivers. It fits users who need reliable heat dissipation without adding moving parts or noise to their machine.
Awxlumv 40mm Anodized Aluminum Heatsink 4-Pack
Best for: passive cooling of 3D printer stepper motors
- Compatible Device
- VRM, 3D Printer (what this guide is about)
- Material
- Anodized aluminum
- Cooling Method
- passive cooling
- Dimensions
- 40 x 40 x 20mm
- Weight
- 1.45 ounces
View on Amazon: Awxlumv 40mm Anodized Aluminum Heatsink 4-Pack
This kit includes four anodized aluminum heatsinks measuring 40 by 40 by 20 millimeters. The 20-millimeter height provides more surface area than the 4-millimeter or 11-millimeter options on this list. You can use them for passive cooling on NEMA17 stepper motors in 3D printers like the Ender 3. Each unit weighs 1.45 ounces. You will need to buy thermal adhesive separately.
Pros
- 20mm height offers more surface area than thinner competitors
- Anodized aluminum material resists corrosion
- Smooth surface without burrs for easy mounting
- Compatible with NEMA17 stepper motors
Cons
- Passive cooling only, no fan included
- Thermal adhesive paste is not included
- No mounting screws or tape in the base package
Good fit if
- You need thicker heatsinks for better passive dissipation
- You are cooling NEMA17 motors on a 3D printer
- You want anodized aluminum for durability
Skip if
- You require active fan cooling
- You want a kit with pre-applied thermal tape
- You need heatsinks taller than 20mm
Verdict: Awxlumv 40x40x20mm Aluminum Heatsink fits users who need extra height for passive cooling on 3D printer stepper motors. It is a solid option if you are willing to source thermal adhesive separately.
Easycargo 40mm Copper Heatsink 2-Pack
Best for: passive cooling of NEMA 17 motors
- Compatible Device
- 3D Printer (what this guide is about)
- Material
- copper
- Dimensions
- 40mm x 40mm x 4mm
- Mounting Type
- preapplied adhesive tape
- Features
- Thermal Tape
- Weight
- 1.27 ounces
This kit includes two 40x40x4mm copper heatsinks with preapplied thermal adhesive tape. Copper offers superior thermal conductivity compared to aluminum, making it ideal for dissipating heat from 3D printer components like NEMA 17 stepper motors or TEC1-12706 Peltier coolers. The 4mm height provides a compact profile. You get a ready-to-install solution that requires no additional mounting hardware or separate thermal paste application.
Pros
- Copper construction for better heat transfer
- Preapplied thermal conductive adhesive tape
- Compact 4mm height
- Includes two heatsinks per kit
Cons
- Only 4mm thickness limits surface area
- Adhesive mounting restricts repositioning
- No fan included for active cooling
Good fit if
- You need passive cooling for NEMA 17 motors
- You want to cool a TEC1-12706 Peltier cooler
- You prefer copper over aluminum for thermal performance
Skip if
- You require active airflow with a fan
- You need to cool high-wattage CPUs
- You prefer aluminum for lighter weight
Verdict: Easycargo 40mm Copper Heatsink is a compact passive cooling solution for 3D printer stepper motors and Peltier coolers. It suits builders who prioritize copper conductivity and want a simple adhesive installation without adding bulk to their machine.
Awxlumv 40mm Aluminum Heatsink 4-Pack
Best for: Passive cooling of stepper motors in tight spaces
- Compatible Device
- 3D Printer (what this guide is about)
- Material
- extruded aluminum 6063-T5 alloy
- Cooling Method
- passive cooling
- Dimensions
- 40 x 40 x 11mm
- Mounting Type
- Pre-applied 3M 8810 adhesive tape
- Features
- Thermal Tape
This kit includes four 40x40x11mm anodized aluminum heatsinks designed for passive cooling. The extruded 6063-T5 alloy provides structural stability and thermal conductivity. Each piece weighs just 0.63 ounces and features pre-applied 3M 8810 thermal adhesive tape. This setup is ideal for you if you need to cool stepper motors or NEMA 17 drivers in a 3D printer. The low profile fits well in tight spaces where larger coolers cannot go.
Pros
- Made from extruded aluminum 6063-T5 alloy for high thermal conductivity
- Includes pre-applied 3M 8810 thermal conductive adhesive tape
- Compact 40x40x11mm dimensions suit space-constrained applications
- Lightweight design at 0.63 ounces per piece
Cons
- Passive cooling only, no fan included for active airflow
- 11mm height is shorter than the 20mm option on this list
- Adhesive backing may not suit surfaces requiring removable mounting
Good fit if
- You need passive cooling for NEMA 17 stepper motors
- You have limited vertical space around your components
- You want a lightweight solution that sticks easily
Skip if
- You require active cooling with a built-in fan
- You need to mount the heatsink without adhesive
- You are cooling high-power components needing larger surface area
Verdict: Awxlumv 40mm Aluminum Heatsink offers a simple, low-profile solution for passive cooling tasks. It fits best in tight 3D printer builds where you need to cool stepper motors without adding bulk or noise.
Awxlumv 40x40x20mm Aluminum Heatsink
Best for: 3D printer motor and VRM cooling
- Compatible Device
- GPU, VRM, 3D Printer (what this guide is about)
- Material
- Aluminum alloy
- Dimensions
- 1.57 x 1.57 x 0.79 inches
- Mounting Type
- Thermal Conductive Adhesive Tape
- Color
- Black
- Weight
- 3.76 ounces
This kit includes four 40x40x20mm aluminum heatsinks with pre-applied thermal adhesive tape. The anodized black finish aids heat dissipation for 3D printer motors, GPUs, and VRMs. Each unit measures 1.57x1.57x0.79 inches. The adhesive backing allows for quick installation without cutting tape. This setup suits users needing reliable passive cooling for compact electronic components in enclosed spaces.
Pros
- 40x40x20mm aluminum alloy construction
- Pre-applied thermal conductive adhesive tape
- Anodized black finish for durability
- Includes 4 heatsinks per kit
Cons
- Passive cooling only, no fan included
- Adhesive tape may leave residue
- Limited surface area for high heat loads
Good fit if
- You need passive cooling for NEMA 17 motors
- You want quick installation with pre-applied tape
- You are cooling compact components like VRMs
Skip if
- You require active airflow with a fan
- You need copper for maximum heat transfer
- You are cooling high-wattage processors
Verdict: Awxlumv 40x40x20mm Aluminum Heatsink is a straightforward passive cooling solution for 3D printer motors and small electronics. It fits users who need easy installation and reliable heat dissipation without active components.
Unxuey 9mm Aluminum Heatsink 50-Pack
Best for: bulk passive cooling of stepper drivers
- Compatible Device
- 3D Printer (what this guide is about)
- Material
- Aluminum alloy
- Cooling Method
- Passive
- Dimensions
- 9 x 9 x 12 mm
- Mounting Type
- Pre-applied thermal conductive tape
- Color
- Black
This kit includes 50 black anodized aluminum alloy heatsinks measuring 9 by 9 by 12 mm. Each unit features pre-applied thermal conductive adhesive tape for easy mounting. It provides passive cooling for stepper drives, MOSFETs, and VRM components. The compact size fits tight spaces on 3D printer electronics. You get a bulk supply for multiple cooling needs without additional adhesive application.
Pros
- 50-piece bulk kit for multiple components
- Pre-applied thermal conductive adhesive tape
- Black anodized aluminum alloy construction
- Compact 9x9x12 mm dimensions
Cons
- Small 9x9 mm base limits heat dissipation capacity
- Passive cooling only, no fan included
- Fixed adhesive tape cannot be repositioned
Good fit if
- You need passive cooling for stepper drivers
- You want pre-applied adhesive for quick installation
- You are cooling multiple small MOSFETs
Skip if
- You require active fan cooling
- You need heatsinks larger than 12 mm height
- You want to reuse adhesive for repositioning
Verdict: Unxuey 9x9x12mm 3D Printer Heatsink suits users who need a bulk supply of small, passive coolers for stepper drivers and MOSFETs. The pre-applied tape saves time on installation for multiple components.
PANO-MOUNTS 40mm USB Fan with Aluminum Heatsink
Best for: quiet active cooling for small 3D printer parts
- Compatible Device
- 3D Printer (what this guide is about)
- Material
- aluminum
- Fan Size
- 40mm
- Dimensions
- 40x40x15mm
- Features
- Fan, Thermal Pad
- Weight
- 5.76 ounces
View on Amazon: PANO-MOUNTS 40mm USB Fan with Aluminum Heatsink
This unit combines a 40mm fan with a 5mm aluminum heat sink and 0.6mm thermal pad. It operates at 4000 RPM with 30 CFM airflow and 20 dBA noise. The USB-powered design fits 3D printers, routers, and hard drives. You get active cooling in a compact 40x40x15mm form factor. It suits users needing silent, low-profile ventilation for small electronics components.
Pros
- Includes 5mm aluminum heat sink and 0.6mm thermal pad
- Quiet operation at 20 dBA
- 30 CFM airflow at 4000 RPM
- USB-powered for easy connectivity
Cons
- Small 40mm fan size limits total airflow
- Only 5mm heatsink height restricts surface area
- Sold as a single pack, not a multi-pack
Good fit if
- You need silent cooling for a 3D printer component
- You require a USB-powered fan solution
- You have limited vertical space for cooling
Skip if
- You need passive cooling without a fan
- You require high static pressure for dense fins
- You want a large 80mm or 120mm fan
Verdict: PANO-MOUNTS 40mm USB Fan with 5mm Aluminum Heatsink fits users who need quiet, active cooling for small 3D printer parts. It is ideal for tight spaces where USB power is available.
Specifications side by side
| Spec | Easycargo 9mm Anodized Heatsink | Easycargo 9mm Black Aluminum Heatsinks (30-Pack) | Awxlumv 40mm Anodized Aluminum Heatsink 4-Pack | Easycargo 40mm Copper Heatsink 2-Pack | Awxlumv 40mm Aluminum Heatsink 4-Pack | Awxlumv 40x40x20mm Aluminum Heatsink | Unxuey 9mm Aluminum Heatsink 50-Pack | PANO-MOUNTS 40mm USB Fan with Aluminum Heatsink |
|---|---|---|---|---|---|---|---|---|
| Material | Anodized Aluminum | black aluminum | Anodized aluminum | copper | extruded aluminum 6063-T5 alloy | Aluminum alloy | Aluminum alloy | aluminum |
| Cooling Method | Passive | passive cooling | passive cooling | not specified | passive cooling | not specified | Passive | not specified |
| Compatible Device | Stepper Motor Driver Module | Stepper Motor Module TMC2130 TMC2100 | IC chip, NEMA17 stepper motors | 3D printers, NEMA 17, Peltier Cooler | not specified | not specified | Stepper drive, MOSFET, VRM GPU, Vram | Graphics Cards, Router, HDD, 3D Printer |
| Fan Size | not specified | not specified | not specified | not specified | not specified | not specified | not specified | 40mm |
| Dimensions | 0.35 x 0.35 x 0.47 inches | 9mm x 9mm x 12mm | 40 x 40 x 20mm | 40mm x 40mm x 4mm | 40 x 40 x 11mm | 1.57 x 1.57 x 0.79 inches | 9 x 9 x 12 mm | 40x40x15mm |
| Mounting Type | 3M 8810 Thermal Adhesive Tape | pre-applied adhesive tape | not specified | preapplied adhesive tape | Pre-applied 3M 8810 adhesive tape | Thermal Conductive Adhesive Tape | Pre-applied thermal conductive tape | not specified |
| Color | Blue | Black | 4Pcs | 2pcs 40x40x4mm Copper | 40 x40 x11 | Black | Black | Black |
| Features | not specified | Thermal Tape | not specified | Thermal Tape | Thermal Tape | Thermal Tape | not specified | Fan, Thermal Pad |
| Weight | not specified | 0.74 ounces | 1.45 ounces | 1.27 ounces | 0.63 ounces | 3.76 ounces | 6.4 ounces | 5.76 ounces |
| Size | 9mm | 9mm | 40*40*20mm | not specified | 40 x40 x11 | not specified | not specified | 40x40x15mm (Pack of 2) |
| Model | 090912B20-8810 | ES-20B090912-8810 | 40x40x20mm Heatsink | 404004C02-8810 | 40 x40 x11 mm | 40x40x20 mm | not specified | 4010GPU1PACK |
If you need a base machine before replacing heatsinks, compare specifications of the best 3d printers for beginners.
How to Choose the Right Heatsink
-
Check Material Conductivity
You should match the metal to your cooling needs. Aluminum is standard and lightweight, as seen in the Easycargo 9mm Anodized Heatsink. Copper offers higher thermal conductivity for intense heat loads, like the Easycargo 40mm Copper Heatsink. Choose aluminum for general stepper driver cooling. Select copper if you need maximum heat transfer in a compact space for motors or Peltier coolers.
-
Measure Height Constraints
Profile height determines if the heatsink fits your build. Small stepper drivers require low profiles, such as the 0.35-inch height of the Easycargo 9mm options. Larger components need more surface area. The Awxlumv 40mm Aluminum Heatsink offers 0.79 inches of height for better passive dissipation. Measure your clearance before buying. Ensure the tallest point does not interfere with moving axes or other electronics.
-
Verify Adhesive Inclusion
Installation speed depends on included mounting hardware. The Easycargo 9mm Black Aluminum Heatsinks come with thermal tape for immediate application. The Awxlumv 40mm Anodized Aluminum Heatsink 4-Pack requires you to source adhesive separately. Check the product attributes carefully. Pre-applied tape saves time and ensures consistent contact pressure. If you buy units without tape, budget for high-quality thermal adhesive.
-
Consider Active Cooling
Passive fins work for most drivers, but some parts need airflow. The PANO-MOUNTS 40mm USB Fan with Aluminum Heatsink combines a fan with a 5mm aluminum sink. This is ideal for tight spaces where USB power is available. It provides quiet active cooling for small 3D printer parts. Use passive aluminum or copper sinks for stationary drivers. Reserve fan-integrated units for components that generate significant heat in enclosed areas.
-
Assess Quantity Needs
Bulk packs suit builds with many identical components. The Unxuey 9mm Aluminum Heatsink 50-Pack provides ample supply for stepper drivers and MOSFETs. Single or small packs, like the Easycargo 40mm Copper Heatsink 2-Pack, work for targeted upgrades. Count your cooling points first. Buying in bulk reduces per-unit cost and ensures uniform appearance. Verify the pack size matches your component count to avoid waste or shortages.
Frequently asked questions
Do I need thermal tape for these heatsinks?
Most options on this list include pre-applied thermal tape or pads for easy installation. The Easycargo 9mm Black Aluminum Heatsinks and the Awxlumv 40mm Aluminum Heatsink both feature included thermal tape. The Awxlumv 40mm Anodized Aluminum Heatsink 4-Pack does not list this feature, so you must source adhesive separately. Always ensure the interface material matches your component surface for effective heat transfer.
Which heatsink is best for tight spaces?
The Easycargo 9mm Anodized Heatsink is ideal for tight spaces. It measures 0.35 inches in width, length, and height. This low profile fits small stepper motor drivers without adding bulk. The Unxuey 9mm Aluminum Heatsink offers similar dimensions at 0.35 inches per side. Both options provide passive cooling without interfering with nearby printer parts or cables.
Is copper better than aluminum for 3D printers?
Copper offers higher thermal conductivity than aluminum. The Easycargo 40mm Copper Heatsink is the only copper option listed. It suits builders who prioritize maximum heat dissipation for components like NEMA 17 motors. Aluminum heatsinks, like the Easycargo 9mm Anodized Heatsink, are lighter and sufficient for most standard stepper drivers. Choose copper for intense heat loads and aluminum for general use.
Can I use these heatsinks for VRM cooling?
Yes, several options work for VRM cooling. The Awxlumv 40x40x20mm Aluminum Heatsink is explicitly listed for GPU, VRM, and 3D Printer use. It measures 1.57 inches by 0.79 inches. The Easycargo 9mm Anodized Heatsink also fits users cooling multiple small chips. Ensure the heatsink height matches your VRM component size for proper contact and heat transfer.
What is the best quiet cooling option?
The PANO-MOUNTS 40mm USB Fan with Aluminum Heatsink provides active cooling. It includes a fan for quiet operation in tight spaces. This option is best if passive aluminum heatsinks are insufficient. All other listed heatsinks are passive, relying on natural air convection. Passive options like the Easycargo 9mm Black Aluminum Heatsinks produce zero noise but rely on ambient airflow.
How many heatsinks should I buy for a printer?
Buy enough to cover all heat-generating components. A typical printer needs cooling for stepper drivers and possibly motors. The Easycargo 9mm Anodized Heatsink comes in an 88-pack, suitable for multiple drivers. The Awxlumv 40mm Aluminum Heatsink 4-Pack is good for motors. The Unxuey 9mm Aluminum Heatsink 50-Pack offers bulk supply for extensive builds. Match the quantity to your specific component count.
Are these heatsinks compatible with NEMA 17 motors?
Yes, larger heatsinks fit NEMA 17 motors. The Easycargo 40mm Copper Heatsink is listed for passive cooling of NEMA 17 motors. It measures 1.57 inches by 0.16 inches. The Awxlumv 40mm Anodized Aluminum Heatsink 4-Pack also fits stepper motors with its 0.79-inch height. Ensure the heatsink base covers the motor casing effectively for optimal heat dissipation.