New Items
The 3976 is the replacement 13-tooth idler gear for the 1st speed position in Traxxas 2-speed transmissions. The idler gear sits between the input gear and the output path in the 2-speed gearbox, transferring power during 1st gear operation.
Fits many Traxxas nitro and electric vehicles with a 2-speed transmission. Consult your vehicle’s manual or parts diagram to verify fitment before ordering.
| Spec | Value |
|---|---|
| Tooth count | 13T |
| Position | 1st speed (idler) |
Traxxas PN: 3976 · Retailer PN: TRA3976 · JackWagon SKU: TRX-3976





