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The ARB Air Locker rear differential for Land Rover Discovery 3 (LR3) applications uses a 31‑spline shaft to provide instant pneumatic locking, coupling both wheels to the ring gear for maximum traction on demand while reverting to open‑differential operation when released. The robust two‑piece construction and reinforced seal enhance durability. The kit includes the Air Locker, activation switch, solenoid valve, air line and bulkhead fitting; not compatible with vehicles fitted with OE lockers.
ARB Airlocker 31 Spl Rr Lr Discovery S3 S/N
