ARRMA Kraton 1/5 43T Spur Gear MAKX043TS - 20CrMnTi by GPM  [MAKX043TS]

Durable 43T spur gear tailored for ARRMA 1/5 drivetrains

This aftermarket 1/5-scale spur, part MAKX043TS, fits ARRMA Kraton and Outcast setups and is manufactured from 20CrMnTi steel with a Mod 1.0 tooth form and 43 teeth. It is sized to align with the Mod 1.0 driveline geometry commonly used on ARRMA large-scale monster trucks and intended for gearbox service replacement.

Fitment tips: attach the spur to the gearbox carrier following the chassis instructions, set and confirm correct backlash between spur and pinion, check shim stacks and bearing health, and verify free rotation before applying power. Confirm the pinion type and motor coupling clearances relative to the 43T diameter and renew any worn fasteners during reassembly.

Tune impact: installing a hardened 20CrMnTi spur helps reduce tooth wear under high torque conditions, enables fine adjustments to final drive when paired with different pinions, and provides a durable option for drivers running demanding off-road or stunt routines at 1/5 scale.

Fit this 20CrMnTi 43T spur when you need a hardened steel service part for 1/5 ARRMA gearboxes, and perform standard mesh and bearing checks at installation.