ARRMA ARA311171 M3x11.5mm Motor Screw Set

This ARRMA motor screw set provides two M3x11.5mm motor screws with two shim washers — the factory hardware that clamps the motor to its mount on ARRMA's 4S BLX platform trucks. Motor screws live a hard life: they hold the powerplant against constant vibration and get loosened at every gear mesh adjustment and pinion change.

The screws are precision manufactured with a large head design for a secure motor fit, a 3mm hex for greater torque transfer, and a low-profile head for extra clearance around the motor mount. The included shim washers set proper clamping across the mount slots.

A stripped motor screw turns a five-minute pinion swap into a drilling job — fresh factory hardware is cheap insurance.

Fitment is ARRMA 4S BLX platform models including the Mojave 4S, Kraton 4S, and Outcast 4S. The package includes two M3x11.5mm motor screws and two shim washers.