Tamiya 42309 37T Aluminium One-Way Pulley for Touring Cars  [42309]

Enhance Drivetrain Control

The Tamiya 42309 - 37T Aluminum One-Way Pulley is intended as a durable replacement for the stock plastic pulley to tighten drivetrain response. Fitting this aluminium piece can lead to steadier traction and cleaner power delivery into corners.

Aluminium Versus Plastic Explained

Aluminium offers greater structural stability and, paired with the HL coating, helps lower friction during rotation. For model drivers focused on consistent lap-to-lap behaviour, this makes a tangible difference.

Which Cars Will It Suit

This pulley is compatible with TRF419, TRF419X, TRF418 and TA07 chassis, plus any model using a direct coupling or spool arrangement. That broad compatibility simplifies parts planning for multiple cars.