ARRMA Kraton 1/5 Spur Gear 43T M1.0 by GPM MAKX043TS  [MAKX043TS]

20CrMnTi 43T spur gear for 1/5 ARRMA

This replacement spur gear is an aftermarket 1/5-scale RC accessory produced by GPM for ARRMA Kraton and Outcast platforms, supplied as part number MAKX043TS. The gear is made from 20CrMnTi steel and uses a 1.0 module with 43 teeth, matching common Mod 1.0 driveline dimensions used on ARRMA large-scale monster trucks. As an RC-scale component it is intended for drivetrain durability and service replacement inside the model's gearbox and spur/pinion mesh system.

Installation notes: fit the spur to the gearbox carrier following the chassis service manual steps, align spur and pinion to achieve correct backlash, verify shim thickness and bearing condition, and confirm mesh under load-free rotation before first run. Check the pinion type and motor coupling for clearance with the 43T diameter and replace damaged fasteners when reassembling.

Tuning role: switching to a hardened 20CrMnTi spur gear helps resist tooth wear under high torque from 8S brushless setups, it can be used to alter final drive ratio when paired with appropriate pinion gears, and it serves as a durable option for drivers who need a replacement that withstands aggressive off-road or stunt duty at 1/5 scale.

Choose this GPM 20CrMnTi 43T spur as a service replacement when you require a hardened steel option for 1/5-scale ARRMA drivetrains, and follow standard mesh and bearing checks during installation.