GPM Racing Hardened Steel #45 Motor Gear 20T for Traxxas 1/10 MAXX (TXMS020TS)

20T hardened motor pinion engineered for MAXX applications

This precision motor pinion is manufactured for compatibility with TRAXXAS MAXX Monster Truck drivetrains and functions as the motor-to-spur drive interface. Machined to hold tolerances for consistent tooth engagement, the component uses hardened steel #45 to improve resistance to abrasion and deformation under load.

Suitable for scheduled replacement, service upgrades, or fine-tuning gear ratios, installation requires correct axial positioning on the motor shaft and securement with the supplied set screw. After fitting, verify tooth mesh and endplay to ensure smooth torque transfer and reduce premature wear on mating gears.

Packing includes

• Motor Gear – 1pcs
• 4×4 Set Screw – 1pcs

Original Name / Part No:

6494X

This item is compatible with

• TRAXXAS-1/10 MAXX MONSTER TRUCK-89076-4

What tolerances should I check after fitting?

Confirm concentricity on the motor shaft and axial endplay; minimal lateral movement and even tooth contact across the mesh indicate correct fitment.

How does steel #45 affect performance?

Steel #45 increases surface hardness and wear resistance, improving service life under repeated load cycles while maintaining dimensional stability.

Any recommended inspection intervals?

Inspect gear teeth and set screw tightness after the first few runs following installation and then during regular maintenance intervals to catch early wear. Write Product Review Please sign in your account before you can write any review. Sign In Close

Made to order: GPM Racing parts are shipped to us from GPM’s factory, so please allow around 14 days for dispatch.