HRSTRXF39M08 - 39T 32p Steel Spur Gear TRA TRX-4

This product is a 39-tooth 32-pitch (0.8 module) steel spur gear engineered as an upgrade replacement for the stock plastic spur gear in Traxxas TRX-4 crawler models. Precision CNC machined hardened steel construction increases drivetrain strength and resists wear under heavy loads and high-torque brushless setups. Lightened design helps reduce rotational mass while black oxide surface treatment enhances corrosion resistance and durability. The gear tooth profile is optimized for rugged 32 pitch systems to maintain consistent engagement and performance over extended use. Designed as a direct replacement, this gear installs into the existing transmission without modification.

• Hardened steel CNC machined construction for improved drivetrain strength

• 39-tooth count with 32 pitch (0.8 module) for compatibility with TRX-4 gear systems

• Lightened design reduces rotational mass for smoother spool up

• Black oxide finish for enhanced corrosion resistance

• Replaces factory plastic spur gear for long-life durability

• Maintains correct gear engagement and mesh when paired with appropriate pinion

• Direct replacement fit for Traxxas TRX-4 without modification