--- product_id: 14225928 title: "RD117 Air Locking Differential" price: "€ 2562.70" currency: EUR in_stock: true reviews_count: 6 url: https://www.desertcart.at/products/14225928-rd117-air-locking-differential store_origin: AT region: Austria --- # Air-activated selectable locker Fits Jeep JK Rubicon & similar 30 spline Dana 44 compatibility RD117 Air Locking Differential **Price:** € 2562.70 **Availability:** βœ… In Stock ## Summary > πŸ”§ Lock in your off-road dominance with ARB’s air-powered precision! ## Quick Answers - **What is this?** RD117 Air Locking Differential - **How much does it cost?** € 2562.70 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/14225928-rd117-air-locking-differential) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Built for Rugged Adventure:** Engineered to withstand the toughest off-road conditions with durable painted exterior. - β€’ **Air-Activated Locking Power:** Switch from open differential to fully locked or spool mode on demand for superior traction. - β€’ **Easy Mechanical Installation:** Designed for straightforward installation by enthusiasts ready to upgrade their ride. - β€’ **Trusted ARB Quality & Support:** Backed by a 4.6-star rating and ARB’s reputation for premium off-road gear. - β€’ **Precision Fit for Jeep Dana 44:** Seamlessly integrates with 30 spline full-floating axles for ultimate reliability. ## Overview The ARB RD117 Air Locking Differential is a high-performance upgrade designed for Jeep Dana 44 axles with 30 spline ratios 3.73 and below. It features an air-activated selectable locker that converts your open differential into a fully locked or spool mode, dramatically enhancing traction and control on challenging terrain. Compatible with Jeep JK Rubicon models and built with durable materials, this differential offers reliable, easy installation and is supported by ARB’s trusted brand legacy. ## Description Product description RD1117 AIR OPERATED LOCKING DIFFERENTIAL by ARB The ARB Air Locker is a replacement differential carrier that can either operate as a conventional differential, or lock both rear (or f ront) axle shafts together allowing maximum drive torque to be transmitted to both wheels. The locking function is controlled from the vehicle dashboard by the driver. Front axle Air Lockers can be locked when traversing slippery surfaces giving maximum traction, or unlocked on high traction surfaces to retain full control of the steering. As a safety feature, the front differential cannot be locked unless the rear differential has first been locked. The ARB Dana 44 air locker RD117 for your 30 spline axle for 3.73 & down gear ratios, can instantly lock differentials and allow you to tackle the toughest off-road terrain. The world's best traction aid, ARB Air Lockers keep you moving in all conditions. Air Lockers from ARB are currently available in over 100 configurations to suit a wide range of off-road and 4x4 vehicles from around the world. Because the Dana 44 ARB RD117 air locker is only engaged when needed, it can be installed in B OTH the front and rear axles, with separate switches independently controlling the RD117 air locker from within the off-road truck or vehicle. Since the Air Locker is pneumatically actuated, an onboard compressor, or other air supply, is REQUIRED . ARB recommend ARB Air Compressors (CKMTA12, CKMA12 or CKSA12).The air compressor is started with the air compressor switch, and a pressure switch maintains the air pressure in the reservoir between 585kPa [85psi] and 690kPa [100psi]. When the Air Locker switch is operated, the relevant pneumatic solenoid valve opens, allowing compressed air down the line to the differential. When the Air Locker switch is turned off, the solenoid valve closes the port from the compressor, and opens the exhaust port allowing the air in the differential to be exhausted. The return springs force the clutch gear back to its original position, disengaging the clutch gear from the splined side gear, freeing the internal gears so that they can once again provide the same normal differential action as the original open factory differential. RD117 AIR OPERATED LOCKING DIFFERENTIAL by ARB Air compressor is not included, but needed. ARB recommend (CKMTA12, CKMA12, CKSA12). RD117 DANA 44 ARB Air Locker 30 Spline (3.73 & Down) for JEEPs: JK (Not Rubicon) and other DANA 40 models ARB RD117 Air Locker Differential Spline 30 Ratio 3.73 & Down Air Locker Differential For Jeep JK. ARB Air Locker products are packaged with all necesary hardware to be ready to install. Before ordering ARB Air Lockers make sure to review the application chart to select correct Part Number ARB Differential Cover are available for some applications, they come in Black and Red, please review the application chart to select correct Part Number Inside the ARB Air Lockers The ARB Air Locker system is supplied as a complete kit which contains all of the parts necessary for proper installation, including industrial grade control switches, air lines and fittings ARB Air Locking Differential are made by joining a multiple pieces together, this products are not made to install without proper tools, on most cases should be installed by a professional. We recommend not to open the box until is ready to install, Boxes are supervised carefully to make sure there are not missing pieces. Air Lockers Installing Request a qualified differential technician to make the instalation for you, unless you have good skills for mechanics Understanding how it works! On some stores you can find a demo where you can understand the dynamics of how the air locker works Proper Installation After instalation the ARB Air Locker should do the work without any loss of air pressure. If you have a leak please consult with your mechanic, before assuming it is a defective item Look inside ARB Air Lockers are a masterpiece, this product shines from the inside out. gears are made carefully to work flawless. ARB Products ARB products are sold and serviced through authorized distributors worldwide. Our staff and distributors are 4x4 enthusiasts, and have a clear understanding of the demanding conditions our products are expected to work in. Review: Great selectable locker for my dana 44 rubicon - This locker is a great build quality, and arb stands behind there products well. I got this to replace my factory rear locker that failed. I will be getting one for the front when that one fails too. It's pretty easy to install if you're mechanical enough. Review: Fantastic - Correct application, came with everything needed to make it work, works amazing. ## Features - This product fits in most Jeeps Dana 44 with 30 Spline Ratios 3.73 & Down Including Jeep JK - For Use With 30 Spline Full Floating Axles - Air Activated Selectable Locker, converts From Open Differential To fully Locked Or Spool - Air Compressors have to be bought separately, ARB Recommend use their on board systems. - Part Number for Jeep JK RUBICON is RD157 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004P9DBOO | | Best Sellers Rank | #2,120,720 in Automotive ( See Top 100 in Automotive ) #1,519 in Automotive Replacement Differential Assembly Kits | | Brand | ARB | | Customer Reviews | 4.6 4.6 out of 5 stars (17) | | Date First Available | February 24, 2011 | | Exterior | Painted | | Is Discontinued By Manufacturer | No | | Item Weight | 6.27 pounds | | Item model number | RD117 | | Manufacturer | ARB | | Manufacturer Part Number | RD117 | | Model | ARB RD117 | | OEM Part Number | RD117 | | Product Dimensions | 10.63 x 10.63 x 11.02 inches | ## Images ![RD117 Air Locking Differential - Image 1](https://m.media-amazon.com/images/I/71pEhIkA9gL.jpg) ![RD117 Air Locking Differential - Image 2](https://m.media-amazon.com/images/I/61mFLzURSRL.jpg) ![RD117 Air Locking Differential - Image 3](https://m.media-amazon.com/images/I/71QNAsJaeUL.jpg) ![RD117 Air Locking Differential - Image 4](https://m.media-amazon.com/images/I/516brDqg3JL.jpg) ![RD117 Air Locking Differential - Image 5](https://m.media-amazon.com/images/I/91L2CQHqh+L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great selectable locker for my dana 44 rubicon *by M***D on June 24, 2024* This locker is a great build quality, and arb stands behind there products well. I got this to replace my factory rear locker that failed. I will be getting one for the front when that one fails too. It's pretty easy to install if you're mechanical enough. ### ⭐⭐⭐⭐⭐ Fantastic *by J***K on March 3, 2023* Correct application, came with everything needed to make it work, works amazing. ### ⭐⭐⭐⭐⭐ top quality *by K***Y on July 16, 2021* excellent product, received very quickly ## Frequently Bought Together - ARB RD117 Air Locking Differential - ARB 171503 Air Compressor Manifold Kit for Easy Installation of Two Air Lockers Solenoids on ARB CKMTA12 Air Compressor, Plug and Play Air Hose Kit for Tire Inflation - ARB ARB505 Deflator Kit 10-60 PSI Tire Pressure Gauge Rapid Air Down Offroad Kit With Recovery Gear Pouch (PSI) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/14225928-rd117-air-locking-differential](https://www.desertcart.at/products/14225928-rd117-air-locking-differential) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-06-05*