ARRMA 1/5 Kraton Outcast 47T M1.0 Spur Gear 20CrMnTi MAKX047TS by GPM  [MAKX047TS]

Heavy-duty spur gear for ARRMA 1/5 trucks

This replacement spur gear is an aftermarket unit designed for ARRMA 1/5 Kraton and Outcast platforms, matching the factory 47T, module 1.0 geometry while using 20CrMnTi steel for improved wear resistance under heavy RC loads. It is offered as a direct-fit spare or upgrade to improve drivetrain durability and maintain consistent gear mesh when running high-power brushless setups in RTR or roller configurations.

Installation notes: inspect the gearbox and existing spur for debris, confirm the motor pinion pitch and tooth count match the 1.0 module specification, and check backlash after mounting. Reuse the original shims or spacing where possible to retain correct mesh; avoid overtightening gearbox screws to prevent bearing preload.

Tuning role: fitting a higher-strength steel spur reduces the chance of premature tooth wear under high torque; it does not change the gear ratio when the same 47T pinion combination is retained, so tuning remains focused on pinion choice, slipper or clutch adjustment, and ESC setup.

For hobbyists replacing a worn factory spur or upgrading to a more robust steel option for heavy brushless use, this 47T 20CrMnTi spur preserves original geometry while increasing fatigue resistance during sustained high-load runs.