3Racing 3RAC-MHS4/LB/V2 Racing 540 Motor Cooling System Light Blue  [3RAC-MHS4/LB/V2]

Performance oriented cooling for 540 competition motors

The 3Racing 3RAC-MHS4/LB/V2 light blue unit is specified to manage surface temperatures on 540 motors so lap-to-lap output remains predictable. Its compact form factor is suitable for tight racing chassis where consistent thermal behaviour aids setup tuning.

High flow fan with optimised sink geometry

The integrated fan delivers directed airflow over a precision fin array to accelerate convective heat transfer. This reduces temperature drift during repeated high load runs and allows tuners to focus on gear ratios and timing without masking thermal variables.

Tune friendly construction

Designed for minimal added mass and straightforward mounting, the assembly is simple to integrate into race setups. The durable finish withstands routine adjustments while keeping centre of gravity impacts to a minimum, which is important when refining handling balance.