ARRMA ARA311235 Center Diff Rebuild Kit

The ARRMA ARA311235 Center Diff Rebuild Kit brings together the key wear items needed to service the center differential on ARRMA's 4S BLX platforms, including the Kraton 4S V2, Outcast 4S V2, and Mojave 4S. Instead of hunting down O-rings, bearings, washers, and a gasket separately, one kit refreshes everything that wears inside the center diff.

The center diff takes constant abuse — it's spinning under full power every second the truck is moving, and its seals and bearings are what keep the silicone fluid in and the grit out. When a diff starts weeping fluid or feeling gritty, this kit restores smooth, consistent diff action. Every component is precision manufactured for an accurate fit and easy servicing, so a rebuild is a quick bench job rather than a parts scavenger hunt.

Package includes:

• 2 x 9.8x2.2mm O-Ring
• 1 x 5x8x2.5mm Ball Bearing
• 2 x 10.2x15x0.5mm Washer
• 1 x Center Diff Gasket
• 2 x 15x21x4mm Rubber Shielded Ball Bearings

Fits: ARRMA Kraton 4S V2, Outcast 4S V2, and Mojave 4S center differentials.

Regular diff service is one of the highest-payoff maintenance habits on a 4S basher — keeping a rebuild kit on the shelf means the truck never sits waiting on small parts. Genuine ARRMA replacement part, SKU ARA311235.