Tamiya SP-1642 TRF420 F 37T Direct Pulley - Lightweight Replacement Part  [51642]

Performance-minded 37T pulley for TRF420

The Tamiya TRF420 F Direct Pulley (37T) serves as a direct replacement compatible with TRF420 and TA07 chassis. It is aimed at improving drivetrain efficiency and simplifying upkeep.

Integrated part lowers rotating mass

Featuring an integrated plastic build, this pulley reduces weight by roughly 2g compared to older multi-part designs. That reduced rotating mass can help the car accelerate and respond more cleanly.

Screw-fitted cups for easy swapouts

With screw-attached direct cups instead of pins, cup replacement is fast and does not require dismantling the full pulley assembly. This design keeps service time to a minimum.

Application and fit

Compatible with both TRF420 and TA07 chassis, the pulley fits as a replacement or upgrade. It is a practical option when refreshing worn front drivetrain components.