8.4" ARB Air Locker [RD129]

Overview:
The ARB RD129 Air Locker is a selectable locking differential engineered for Toyota 8.4" axles with either 4- or 6-cylinder spline configurations. It delivers full traction on demand for rugged off-road use while maintaining smooth drivability on pavement.
– Pneumatically controlled locker provides 100% traction when engaged
– Operates as an open differential when disengaged for daily use
– Durable two-piece construction with minimal moving parts for reliability
– Patented locking mechanism ensures fast engagement and release
– Kit includes all components for locker control and installation

Specifications:
– Axle: Toyota 8.4"
– Spline Compatibility: 4- and 6-cylinder axle splines
– Gear Ratios: All
– Material: Steel
– Seal: Steel-reinforced, elastomer bonded annular seal
– Kit Contents: Differential, solenoid valve, switch, air line, bulkhead fitting
– Air Compressor: Required for operation (sold separately)

Fitment:
See product title or contact support.

Notes:
Requires ARB air compressor (high output or mini, sold separately). Must be installed by a qualified differential technician. Compatible with all Toyota 8.4" differentials using 4- or 6-cylinder splines, regardless of gear ratio.

Downloads:
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