Serpent 804301 Aluminum 40T Rear Gear Diff Pulley - Lightweight Mod  [SER804301]

Precision aluminium pulley for cleaner runs

The Serpent 804301 Aluminum 40T Rear Gear Diff Pulley is produced to tighten drivetrain behaviour while cutting unnecessary weight. Crafted from aluminium for durability, it suits both competitive and casual RC use.

Corrosion protection and weight saving

Anodizing on the surface improves resistance to wear and corrosion during heavy use. The side openings reduce mass and let mud and grit escape while you run, helping keep the gearbox free of packing debris.

Where this pulley works best

Compatible with a range of rear diff setups, this 40T pulley is useful for lap-focused tuning or replacing worn parts. It is a sensible upgrade for anyone wanting a more responsive drivetrain.