Hub Service Kit

The WARN Hub Service Kit is the essential maintenance solution for owners of WARN Standard Manual Hubs, the industry-leading locking hub system found on four-wheel-drive vehicles. This kit exists because manual hubs require periodic service to maintain their locking engagement, seal integrity, and smooth operation—neglecting maintenance can result in hub slippage, moisture ingress, and costly drivetrain damage. Whether you're a serious off-roader, a mechanic maintaining client vehicles, or a truck owner committed to reliability, this service kit delivers the replacement components and hardware needed to keep your hubs functioning at peak performance.

The hub service kit contains internal seals, gaskets, springs, and replacement hardware specifically engineered to WARN's exacting tolerances, ensuring perfect fitment and function after disassembly and cleaning. WARN hubs depend on precision-machined engagement pins, return springs, and dynamic seals to reliably shift between locked (power transfer to all four wheels) and unlocked (two-wheel drive) modes—components that wear gradually from thermal cycling, mud ingress, and repeated engagement cycles. By replacing these wear items during service, you restore the hub's original responsiveness and seal effectiveness, preventing the internal corrosion and stiffness that plague neglected units.

This kit is ideal for mechanics rebuilding hubs in high-use vehicles, weekend warriors maintaining their own 4x4s, and fleet operators managing multiple vehicles with manual hub systems. Installation requires only basic tools and a clean workspace; the compact 5.1 x 0.65 x 7.15-inch kit fits easily in any toolbox. Verify your vehicle's hub type before ordering—this service kit is specifically designed for WARN Standard Manual Hubs (not locking differentials or automatic hubs). Complete the service every 20,000–30,000 miles in harsh terrain, or annually if your vehicle sees regular trail use, to guarantee engagement reliability and extend hub lifespan.