3Racing 3RAC-MHS5/LB/V2 Performance Fan Heat Sink for 540 Motors  [3RAC-MHS5/LB/V2]

3RACING Engine Heat Sink Motor Heat Sink W/ Fan Ver.2 For 540 Motor (Fan-Shaped) - Light Blue - 3RAC-MHS5/LB/V2
Price:
USD$5.70
Brand:
3Racing
Model:
3RAC-MHS5/LB/V2
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Technical cooling solution for 540 motor applications

The 3Racing 3RAC-MHS5/LB/V2 integrates a fan with a fan-shaped fin array to improve convective heat transfer from 540 motor housings. The assembly focuses airflow across critical surfaces while keeping added mass low, making it suitable for racers and tuners who need reliable thermal management without excessive weight penalty.

Technical highlights

  • Compatibility: Engineered for common 540-size motor profiles
  • Material: Designed to balance light weight with structural durability
  • Design: Radial fan-shaped fins promote axial airflow across the motor can
  • Color: Finished in light blue for clear identification of the upgrade part
  • Function: Onboard fan increases air movement to reduce sustained temperature rise

How is the unit secured to the motor?

Mounting depends on motor endbell geometry; typically the sink is clamped or fixed using existing endbell screws. Confirm thread sizes and engagement depth before final assembly to avoid stress on the motor housing.

What maintenance keeps cooling optimal?

Regularly clear dust from fin channels and verify the fan spins smoothly with no bearing noise. Inspect the mounting interface for secure fit and re-torque fasteners after initial use.

Any compatibility notes for sealed motor cans?

Sealed cans with nonstandard endbell shapes may require adapter plates or careful measurement. Check that the sink sits flush and the fan intake is not obstructed to ensure effective airflow.