Description
A pneumatically locked differential for the Land Rover 'Rover' banjo axle with 24-spline half shafts and 3.54 ratio, switched by the driver at any speed from a compressor-fed solenoid so the axle runs as an open differential on road and fully locked off it. Fits Defender 90/110, Discovery 1 and 2 and the 1993-95 Range Rover Classic.
24-spline axles 1993-2004; 10-spline earlier axles need a different unit.
Rarity. ARB's standard locker for the coil-sprung Land Rover Rover-type axle, sold worldwide by every Land Rover parts house; the usual choice alongside Ashcroft/Toro units.
Record: 1 source; designation recorded; price recorded; production dates not established.
Specification
MAKERARB 4x4 Accessories, Australia
DESIGNATION / PARTRD128
MADEdates not recorded
PRICE IN 2026$1299.95 — ARB USA store price, compressor extra
RARITYCommon — ARB's standard locker for the coil-sprung Land Rover Rover-type axle, sold worldwide by every Land Rover parts house; the usual choice alongside Ashcroft/Toro units.
SPLINES24
RATIO3.54
AXLERover banjo, shimmed third member
CONTROL12 V solenoid valve, air line, bulkhead fitting
COMPRESSORseparate
WARRANTY YEARS5
Fitment
24-spline axles 1993-2004; 10-spline earlier axles need a different unit.
Sources
store.arbusa.com/air-locker-differential-land-rover-24-spl-banjo-rd128/Every source above was fetched and read when the record was made.