Description
The ARB RD193 Air Locker is the ultimate traction upgrade for your Toyota 4Runner (2010–2023) or FJ Cruiser (2010–2014). Engineered for vehicles equipped with an 8.15-inch, 12-bolt rear axle, this selectable locker uses a shim-adjusted carrier and 30 spline axle shafts to deliver maximum grip in off-road environments.
ARB's air-actuated locking differential transforms your axle from an open diff to a fully locked unit at the push of a button—ensuring both wheels turn together and keep you moving through mud, rocks, snow, or sand. When unlocked, it behaves just like a stock differential for normal on-road driving.
Built from ultra-durable steel with minimal internal moving parts, the RD193 includes ARB’s patented “timed” locking mechanism for fast engagement and consistent reliability. It also features a steel-reinforced annular seal designed to survive extreme temperatures and terrain.
Whether you're rock crawling or overlanding, this Air Locker gives your Toyota the confidence to tackle the trail without sacrificing drivability.
Note: ARB air compressor required for operation (sold separately).
Features & Benefits
- Instant 100% Locking Traction – Engages both wheels for equal power delivery off-road
- Driver-Activated Control – Engage or disengage from the cabin for maximum safety and comfort
- High Strength Design – Durable steel two-piece housing with low-friction, minimal part count
- Fast Engagement – Patented “timed” locking system offers near-instant activation
- All-Weather Sealing – Bonded annular seal resists heat, cold, and contamination
- Complete Kit – Includes locker, activation switch, solenoid, air lines, and bulkhead fitting
- Air Compressor Required – Sold separately
- Reliable Warranty – Backed by ARB’s 5-year limited warranty
Specifications
- Part Number: ARB RD193
- Material: Steel
- Color: Silver
- Axle Type: Toyota 8.15" 12-bolt (shim-adjusted)
- Spline Count: 30
- Axle Shaft Diameter: 1.31"
- Position: Rear
- Gear Ratio Compatibility: All
- Prop 65 Warning: No
- Warranty: 5 Years
Vehicle Fitment
Fits the following models with 8.15" rear differential and 30 spline shafts:
Toyota 4Runner (2010–2023)
- SR5 (2.7L I4 & 4.0L V6)
- SR5 Premium
- Limited
- TRD Sport
- TRD Off-Road
- TRD Off-Road Premium
- TRD Pro
- Trail
- Nightshade
- Venture
- Base
- 40th Anniversary Edition
Toyota FJ Cruiser (2010–2014)
- Base
- Premium
