Traxxas Halves (L&R) with Idler Gear Shaft RC Gearbox - 3691

The Traxxas TRX3691 gearbox halves (left and right) with idler gear shaft are direct-fit replacement drivetrain components for a wide range of Traxxas electric models. Supplied in black, this RC gearbox set restores a damaged or worn gearbox housing to factory condition and includes the idler gear shaft to ensure a complete, ready-to-install repair. If you're rebuilding a stripped or cracked gearbox on your Traxxas model, these are the correct OEM-spec parts to get the drivetrain running again.

Key Features

• Supplied as a matched left and right gearbox half pair for accurate, aligned assembly
• Includes the idler gear shaft, providing the key internal component needed for a full gearbox rebuild
• Black moulded construction matches the original factory specification
• OEM Traxxas part (TRX3691), ensuring correct fitment across all compatible models
• Designed for direct replacement of cracked, stripped, or damaged gearbox housings

Compatible With

• Traxxas 136454-4
• Traxxas 24254-8
• Traxxas 36234-8
• Traxxas 36254-8
• Traxxas 36334-4
• Traxxas 36354-4
• Traxxas 37254-8
• Traxxas 37354-4
• Traxxas 58214-4
• Traxxas 58234-8
• Traxxas 58334-4
• Traxxas MONSTER04

What's Included

• Left gearbox half (black)
• Right gearbox half (black)
• Idler gear shaft