2011-2021 Ram 1500 ARB Air Locker Differential (31 Spline, 9.25 inch Rear) | RD269

Ram 1500 ARB Air Locker Differential Features:

• Fits Ram 1500 with 9.25" rear axle
• 31 spline differential for solid engagement
• Provides 100% traction on demand
• Pneumatic locking system for reliable control
• Locks axles together for maximum traction
• Functions as open differential when unlocked
• Activates at any speed for instant response
• Minimizes driveline wear when not engaged
• Durable steel construction with patented design
• Includes switch, solenoid, airline, and fittings
• Air compressor required for operation
• Backed by ARB's 5-year limited warranty

Serious Traction with On-Demand Control

If you're ready to take your 2011–2021 Ram 1500’s off-road capability to the next level, the ARB Air Locker Differential is one of the smartest upgrades you can make. Designed for the 9.25 inch rear axle with 31-spline shafts, this air-actuated locker replaces your factory open differential with a selectable locking unit that gives you full traction when you need it and open-diff drivability when you don’t. With a flip of the dash-mounted switch, compressed air activates a piston inside the differential that instantly locks both rear axle shafts together. The result is equal power sent to both rear wheels at the same time, allowing your truck to climb, crawl, and power through terrain where a stock diff would leave you spinning. When you’re back on pavement or a high-traction surface, simply disengage the locker for factory-like handling and smooth cornering.

Engineered to Withstand the Toughest Conditions

What makes the ARB Air Locker stand out is its simplicity and strength. The internal locking mechanism is housed inside a rugged, two-piece differential made from high-grade steel and precisely machined for long-lasting durability. With minimal moving parts, it’s built for reliability in extreme conditions. The pneumatic actuation system includes a solenoid valve, airline, activation switch, and all necessary fittings for a complete setup, and it’s compatible with ARB's onboard air compressors (sold separately). This isn’t just a locker meant for weekend trail rides; this is a professional-grade traction aid trusted by overlanders, rock crawlers, and expedition builders around the world. Install requires setting up the ring and pinion correctly, so it’s best handled by a knowledgeable shop or a seasoned DIY mechanic. But once it's in, you’ll have the confidence to tackle the kind of off-road challenges that would stop a stock Ram in its tracks.

Vehicle Fitment: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ram 1500

Application Notes:

• Fits Ram 1500 with 9.25" rear axle
• Axle: 9.25 in ZF; Position: Rear; Shaft: 1.35 in; Spline: 31; Ratio: All
• Air compressor required and sold separately. Check out our massive selection of Universal On-Board Air Compressors