Gear, 17-T pinion (32-p), heavy duty (machined, hardened steel) (TRX-3947X)

Gear, 17-T pinion (32-p), heavy duty (machined, hardened steel) (TRX-3947X)

Gear, 16-T pinion (32-p), heavy duty (machined, hardened steel) (TRX-3947X)