ARRMA Kraton Outcast 43T Spur Gear Mod 1.0 - MAKX043TS by GPM  [MAKX043TS]

Hardened 20CrMnTi 43-tooth spur for ARRMA 1/5

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

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 free rotation under no-load before the first run. Check the pinion type and motor coupling for clearance with the 43T diameter and replace any damaged fasteners when reassembling.

Tuning role: swapping in a hardened 20CrMnTi spur helps resist tooth wear under high-torque 8S brushless use, can alter the final drive ratio when matched with suitable pinions, and serves as a robust replacement for drivers who push the model hard in off-road or stunt scenarios at 1/5 scale.

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