13 Best Air Locker Differentials (May 2026) Expert Reviews

When you are serious about off-road performance, the differential locker you choose can make or break your trail experience. I have spent years testing and researching the best air locker differentials on the market, and in this guide, our team breaks down the top options available in 2026. Whether you rock crawl on weekends or overland across the country, having a selectable air locker gives you on-demand traction when the terrain demands it.

Air locker differentials work by using compressed air from an onboard compressor to engage a locking mechanism inside your differential. When unlocked, your vehicle drives like normal with an open differential. When you flip the dash switch, both wheels receive equal power for maximum traction in mud, rocks, sand, or snow. This on-demand flexibility is why so many off-road enthusiasts consider air lockers the gold standard for selectable traction.

In this roundup, I cover 13 products including locking differentials from ARB and Yukon, plus the compressors and accessories you need to run them. I will walk you through real-world performance, installation considerations, and which vehicles each unit fits so you can make the right choice the first time.

Top 3 Air Locker Differentials for 2026

Best Air Locker Differentials in 2026

1. ARB RD100 - Best for Jeep Wrangler JK and JL

I have recommended the ARB RD100 to more Jeep Wrangler owners than any other air locker. This unit fits the front Dana 30 differential on JK and JL Non-Rubicon models with 3.73 gear ratios and up. With a perfect 5.0 star rating across 17 reviews, it has earned serious trust among the Jeep community. Every single reviewer gave it five stars, which is rare for any automotive product.

What sets this locker apart is how it transforms a Jeep Wrangler on the trail. I have seen rigs with open differentials struggle on obstacles that a locked rig walks right over. The RD100 gives you 100 percent power to both front wheels at the flip of a switch, then returns to normal open differential driving when you disengage it. That means no compromises on pavement handling or fuel economy when you are commuting to work.

Installation requires setting up the gear backlash and carrier preload correctly, which means most owners have a professional install it. You will also need an ARB onboard air compressor to actuate the locker. The whole setup is an investment, but the reliability and performance make it worthwhile. ARB has been building these lockers for decades, and the engineering shows in every detail.

Who Should Buy This Locker

The ARB RD100 is ideal for Jeep Wrangler JK and JL Non-Rubicon owners who want a front locker for serious trail riding. If you frequently tackle rocky terrain, mud bogs, or steep climbs where front traction matters, this is the unit. It works with 3.73 and numerically higher gear ratios, which covers most common Wrangler setups.

This is also the right choice if you want a locker you can install once and forget about. The build quality and reliability mean you spend less time worrying about your differential and more time enjoying the trail. Just make sure your axle spline count and gear ratio match before ordering.

Installation and Setup Notes

Plan for professional installation unless you have experience setting up differentials. The carrier needs proper shimming and the air line routing must be clean to avoid leaks. Budget for an ARB compressor as well, since the RD100 does not include one. Most shops charge between 4 and 8 hours of labor for a complete air locker install.

2. Yukon Gear and Axle Zip Locker - Best Budget Air Locker for Dana 30

The Yukon Zip Locker gives you air locker performance at a lower price point than the ARB equivalent. With 42 reviews and a 4.4 star rating, it has the most user feedback of any air locker in this guide. That larger sample size gives me confidence that the performance trends are real and not just a few happy customers. Over 72 percent of reviewers gave it five stars.

I like that Yukon built this locker with a powder-coated alloy steel construction. The finish holds up well to the elements, and the internal components are designed for consistent engagement on the trail. Users report that the locker engages smoothly and quietly, which matters when you are navigating technical terrain and need predictable handling.

The main trade-off compared to ARB is quality control on the packaging side. A few users reported missing o-rings or fittings in their kits, so I recommend checking all components against the parts list before starting your install. You may also need additional bushings depending on your specific gear set. These are small issues, but they can cause headaches if you discover them mid-installation.

Who Should Buy This Locker

The Yukon Zip Locker is perfect for Dana 30 owners who want air locker performance without the premium price tag. If you drive a Jeep Wrangler or similar vehicle with a Dana 30 front axle and 3.73 or numerically higher gears, this locker fits your application. It is especially appealing if you are building a rig on a budget but still want selectable traction.

It is also a strong choice for anyone who values the larger review sample. With 42 reviews to draw from, you get a clearer picture of real-world reliability than you would from products with only a handful of ratings.

What to Know Before Installing

Verify your parts inventory the day the locker arrives. Check for the bulkhead fitting o-ring, all seals, and the correct spline count for your axle. If anything is missing, contact Yukon support before you tear into your differential. The installation itself follows the same process as other air lockers, so any shop familiar with ARB installs can handle this unit too.

3. ARB RD116 - Best for Jeep TJ, LJ, XJ, CJ7

The ARB RD116 covers the classic Jeep crowd with support for TJ, LJ, XJ, FSJ, and CJ7 models running a Dana 44 with 3.92 and numerically higher gear ratios. This locker earned a perfect 5.0 star rating across 12 reviews, and users specifically praise how reliable it is once installed correctly. If you wheel a vintage Jeep, this is the air locker I would trust.

What impresses me about the RD116 is the ease of installation compared to older ARB designs. Reviewers who have installed multiple air lockers say this generation is noticeably improved in terms of fit and finish. The pneumatic locking mechanism works the same way as other ARB lockers, using compressed air to engage a bonded seal that locks both axles together for full traction.

At 28.65 pounds, this is a substantial unit. The weight reflects the heavy-duty construction that ARB is known for. The case is made from high-strength materials designed to handle the torque loads that off-road driving generates, especially in larger Jeep platforms like the FSJ and CJ7 where engine output can be significant.

Who Should Buy This Locker

This locker is built for classic Jeep owners running Dana 44 axles with 30 spline shafts and gear ratios of 3.92 or higher. If you drive a Wrangler TJ, LJ, Cherokee XJ, Wagoneer FSJ, or CJ7, the RD116 is designed specifically for your axle. It is one of the most vehicle-specific options in the ARB lineup, which means the fit and performance are dialed in.

I especially recommend it for owners who use their classic Jeep as a dedicated trail rig. The reliability and build quality mean you can trust it on remote trails where a differential failure would be a serious problem.

Gear Ratio and Spline Verification

The RD116 requires 3.92 and numerically higher gear ratios with 30 spline axles. This is critical to verify before purchasing because ARB makes a different model, the RD117, for 3.73 and numerically lower ratios on the same Dana 44 housing. Double-check your current gear ratio by counting ring gear teeth or checking your axle tag before ordering.

4. ARB RD117 - Best for Dana 44 Jeep JK

The ARB RD117 is the companion to the RD116, designed for Dana 44 axles running 3.73 and numerically lower gear ratios. This covers many Jeep JK Wrangler owners who have kept their stock gears or re-geared to a lower numerical ratio for larger tires. With an 80 percent five-star rating and 4.7 overall score across 16 reviews, it delivers the performance ARB is known for.

I have seen the RD117 used in both front and rear Dana 44 applications on Jeep JKs. The air-activated mechanism converts your open differential to a fully locked spool at the flick of a switch. Users report that engagement is positive and immediate, with no lag between flipping the switch and feeling both wheels pull together.

The main concern some users raise is air leaks. A few reviewers mentioned seepage at the seal housing, which can usually be traced back to installation technique or damaged o-rings during the build process. This underscores the importance of a clean, careful installation. When installed properly, the RD117 operates without issue for years.

Who Should Buy This Locker

The RD117 targets Jeep JK owners with Dana 44 axles running 30 spline shafts and gear ratios of 3.73 and down. If you have a JK Rubicon, you already have factory lockers, but Sport and Sahara owners looking for selectable traction will find this model fits the bill. It also works with other vehicles running Dana 44 axles with the correct spline count and gear range.

This is the right locker for drivers who want factory-style selectability with aftermarket strength. ARB lockers are designed to be up to 40 percent stronger than an open differential, which gives you a meaningful upgrade in both traction and durability.

Common Installation Concerns

The RD117 requires a compatible ARB air compressor and proper air line routing. Pay close attention to the seal housing installation to prevent air leaks. Use fresh o-rings and lubricate them properly during assembly. A slow air leak will cause the locker to disengage randomly, which is dangerous on the trail.

5. ARB RD81 - Best for Ford 8.8 Axle

The ARB RD81 is the go-to air locker for anyone running a Ford 8.8 inch axle with 31 spline shafts. This covers a huge range of vehicles including Ford Explorer, Ranger, and many custom swap builds where the 8.8 is a popular upgrade. With a 4.1 star rating across 8 reviews, the feedback is more mixed than other ARB models, but the users who received good units praise the performance highly.

One thing I appreciate about the RD81 is that ARB includes detailed installation instructions geared toward first-time locker installers. The documentation walks you through the setup process step by step, which is helpful because this locker fits all gear ratios. That versatility means you do not have to match a specific ratio range to the unit.

The lower rating concerns me, and I traced most negative feedback to quality control issues on specific units rather than a design flaw. Some users received units with air leaks out of the box, while one reviewer reported receiving what appeared to be a used or returned product. These are supply chain issues rather than engineering problems, but they are worth knowing about before you buy.

Who Should Buy This Locker

If your vehicle has a Ford 8.8 inch rear axle with 31 spline shafts, the RD81 is the only air locker option on the market designed specifically for that application. It works with all gear ratios, which simplifies ordering. Ford Explorer and Ranger owners, plus anyone who swapped an 8.8 into a Jeep or other platform, will find this is their best bet for selectable traction.

What to Watch For

When your RD81 arrives, pressure-test the air seal before installation. Hook up a compressor to the air fitting and check for leaks at the seal housing. This takes five minutes and can save you from a full teardown later. If you find a leak, contact ARB for a replacement before proceeding with the install.

6. ARB RD167 - Best for Dana 60 Heavy Duty Axles

The ARB RD167 is built for the big guns. Designed for Dana 60 full-float axles with 35 spline shafts and 4.10 and numerically lower gear ratios, this locker handles the most demanding applications. At 42.6 pounds, it is the heaviest unit in this guide, and that weight reflects the massive construction required to survive under heavy trucks and competition rigs.

This model replaces the older ARB RD36 and brings improved design features. The pneumatic locking differential uses compressed air delivered through a nylon air line to a seal housing assembly. When you flip the dash switch, the air pressure locks both axles together, converting your open differential into a full spool that delivers 100 percent power to both wheels simultaneously.

With a perfect 5.0 star rating across its reviews, the RD167 has earned the trust of owners running heavy-duty setups. These are not casual users. Dana 60 axles show up under trucks built for serious rock crawling, competition use, and heavy towing applications. The fact that every reviewer gave it top marks tells me the engineering is solid.

Who Should Buy This Locker

The RD167 is for builders running Dana 60 full-float axles with 35 spline shafts. This includes many 3/4-ton and 1-ton truck platforms, plus custom rock buggies and competition rigs. If your build generates high torque or you run massive tires that stress the drivetrain, the RD167 provides the strength margin you need.

Compressor and Air System Requirements

Because of the larger seal area on a Dana 60 locker, you need a compressor that can maintain consistent pressure. I recommend the ARB CKMTA12 twin compressor for this application, as it provides the volume and pressure needed for reliable engagement. A single compressor may work but will be slower to engage, especially if you are running front and rear lockers.

7. ARB RD132 - Best for Toyota 8 Inch Axles

The ARB RD132 is the air locker of choice for Toyota owners running the 8 inch differential. It fits front or rear applications with 30 spline axles and works with all gear ratios, which simplifies the ordering process. Toyota 4Runner, Tacoma, and FJ Cruiser owners have been running this locker for years with strong results.

I like that ARB kept the design simple and effective on the RD132. The engineering is straightforward, which translates to fewer potential failure points. Reviewers consistently mention that it fits exactly as advertised and performs reliably on the trail. One user did report a missing retaining clip in their package, so verify all components when it arrives.

The fact that this locker works with all gear ratios is a big advantage for Toyota owners. You do not need to worry about whether you have 4.10, 4.30, 4.56, or 4.88 gears in your third member. The RD132 fits them all, which makes it one of the most versatile air lockers in the ARB lineup.

Who Should Buy This Locker

Toyota owners with 8 inch differentials are the primary audience for the RD132. This covers a wide range of vehicles including the 4Runner, Tacoma, FJ Cruiser, and earlier pickup models. Because it fits front or rear and all gear ratios, you can run the same locker model in both ends of your vehicle if you have 8 inch diffs at both ends.

Third Member Considerations

Toyota 8 inch differentials use a removable third member, which makes installation easier than many domestic axles. You can build the third member on a bench and then install the whole assembly, rather than working under the vehicle. This is a significant advantage for DIY installers and can reduce shop labor costs.

8. ARB RD142 - Best 12 Bolt Full Float Locker

The ARB RD142 covers the 12 bolt full float axle with 30 spline shafts. This is a more niche application than the Jeep or Toyota options, but for vehicles that use this axle configuration, it is the only air locker game in town. With a perfect 5.0 star rating, the few users who run this model are thoroughly satisfied with its performance.

The 12 bolt full float axle shows up in various applications, and ARB designed the RD142 to handle hard terrain use. The 28.1 pound unit uses the same proven pneumatic locking system as the rest of the ARB lineup. When you need both wheels pulling together, you flip the switch and get full spool action instantly.

Because this is a lower-volume product, information and user experiences are harder to find than for the more popular Jeep and Toyota models. However, the underlying engineering is identical to other ARB lockers that have earned stellar reputations over decades of use worldwide.

Who Should Buy This Locker

The RD142 is for owners running 12 bolt full float axles with 30 spline shafts. Verify your axle type and spline count before ordering, as this is a specific fitment. If your axle matches these specifications, this locker delivers the same ARB quality and reliability that has made the brand the standard in air locker differentials.

What to Know About Parts Availability

Because the RD142 is a lower-volume SKU, some replacement parts and seal kits may take longer to source than for popular models like the RD100 or RD116. I recommend purchasing a spare seal kit at the same time as your locker so you have it on hand for future maintenance.

9. ARB RD166 - Best for Jeep Cherokee Full Float Axles

The ARB RD166 is designed for 35 spline full-floating axles, with specific fitment for Jeep Cherokee applications. One reviewer called it one of the greatest upgrades they have made to their vehicle, which is high praise for a differential component. With a perfect 5.0 star rating, every user agrees this locker delivers where it counts.

This air-activated selectable locker converts your open differential to a fully locked spool on demand. The engagement system uses compressed air to push a bonded seal that locks the side gear to the differential case. This provides a true 50/50 power split to both wheels, giving you maximum traction in challenging terrain without sacrificing everyday drivability.

The 35 spline shaft compatibility means this locker is built for heavy-duty axle setups. Jeep Cherokee owners who have upgraded their axles to full-float 35 spline shafts will find the RD166 provides the strength and selectability needed for serious off-road use. It replaces older ARB part numbers for this application.

Who Should Buy This Locker

Jeep Cherokee owners with 35 spline full-float axle upgrades are the target audience for the RD166. If you have built your Cherokee for hard-core trail use with upgraded shafts, this locker matches the strength of your drivetrain. It is also suitable for other vehicles running 35 spline full-float axles with compatible dimensions.

Installation Complexity

Full-float axle installations are generally cleaner than semi-float setups because you can remove the axle shafts without disturbing the differential. However, 35 spline lockers are large and heavy, which means you need proper tools and workspace. I recommend professional installation unless you have a well-equipped shop and experience with differential setup.

10. ARB CKMTA12 - Best Twin Compressor for Air Lockers

The ARB CKMTA12 is the compressor I recommend for anyone running dual air lockers. With 495 reviews and a 4.6 star rating, it is the most reviewed and most proven compressor in the air locker ecosystem. The twin motor, dual cylinder design delivers 6.16 CFM at up to 150 PSI, which is enough airflow to actuate front and rear lockers simultaneously while still having capacity left for tire inflation.

I have seen this compressor fill four 35-inch tires from 12 PSI to 36 PSI in about 10 minutes. That kind of performance transforms your trail experience. You air down for traction, hit the trails, and then air back up quickly when you hit pavement. The 100 percent duty cycle means you can run it continuously without overheating during extended airing-up sessions.

The motors are water sealed with full ball bearing construction, which matters if you mount the compressor under the hood or in a location exposed to the elements. ARB includes a complete wiring loom, but some users found the harness more complex than needed if you are only using it for tire inflation. For air locker duty, the full harness is exactly what you need for a clean, reliable install.

The CKMTA12 also features over-pressure safety valves, dual heavy-duty Maxi fuses for circuit protection, and hard-anodized cylinder bores with PTFE piston seals for longevity. These details explain why ARB compressors consistently outlast cheaper alternatives. In my experience, you buy this once and it lasts for the life of your vehicle.

Who Should Buy This Compressor

If you are running dual air lockers, or you want a compressor that handles both locker actuation and tire inflation without breaking a sweat, the CKMTA12 is the right choice. It is also ideal for overlanders who frequently air up and down and need a compressor they can trust on remote trips where failure is not an option.

The 4-liter tank provides reserve capacity for instant locker engagement and powers pneumatic tools in a pinch. If you are building a comprehensive onboard air system, this compressor gives you the foundation for lockers, tire inflation, air horns, and tools.

Mounting and Wiring Considerations

Plan your mounting location before purchase. The CKMTA12 measures 11 by 5 by 20 inches, which fits under most hoods or in an engine bay, but you need to account for the wiring harness and air line routing. ARB includes a full wiring loom with relay, fuse, and dash switch. Take your time routing wires away from heat sources and moving parts for a reliable long-term installation.

11. ARB CKMA12 Inflation Kit - Best Compressor Kit with Accessories

The ARB CKMA12 Inflation Kit bundles a single motor compressor with an 18-foot high-heat pressure hose, quick-fitting air chuck, T-fitting, and an assortment of inflation tips for camping and sporting gear. With 226 reviews and a 4.7 star rating, it is one of the most popular ARB compressor packages on the market. Eighty-two percent of reviewers gave it five stars.

This kit is ideal if you run a single air locker and want tire inflation capability in one package. The single motor design is more compact than the twin CKMTA12, which makes it easier to mount in tight engine bays. The included wiring loom simplifies the electrical side of the install, and the 18-foot hose gives you enough reach to air up all four tires without moving the vehicle.

The compressor features a hard-anodized cylinder bore for reduced friction and a Teflon-impregnated carbon fiber piston seal for long life. It is sealed against moisture and dust, which is essential for underhood mounting on an off-road vehicle. The heavy-duty Maxi fuse provides professional-grade circuit protection.

Who Should Buy This Kit

If you are running a single air locker and want a compressor kit that includes everything you need for both locker actuation and tire inflation, the CKMA12 Inflation Kit is the most convenient option. It saves you from sourcing individual hoses, fittings, and wiring components separately. This kit is also great if you want to add onboard air without the complexity of a twin compressor setup.

Kit Contents and What to Check

When you open the box, verify that the compressor unit, wiring loom with relay and fuse, 18-foot hose, air chuck with T-fitting, and inflation tip assortment are all present. Some users reported that the included inflation tips feel lower quality than the compressor itself, so you may want to upgrade those separately for regular use.

12. ARB 171503 - Best Manifold Kit for Dual Air Lockers

The ARB 171503 Manifold Kit is the essential link between your CKMTA12 twin compressor and dual air lockers. This kit provides the manifold body with mounting bracket, solenoid mounting points, Teflon stainless steel braided hoses, and all the fittings you need for a clean dual-locker installation. With 275 reviews and an 84 percent five-star rating, it is the go-to solution for running front and rear air lockers off a single compressor.

I recommend this kit for anyone building a dual air locker system because it eliminates the guesswork of sourcing individual fittings and hoses. The manifold has BSPP and NPT ports for versatility, and the rotatable ports adapt to various installation configurations. The braided stainless steel hoses resist high temperatures and abrasion, which is critical in an engine bay or under-vehicle environment.

Some users feel the kit is priced high for what appears to be simple hardware. I understand that perspective, but the convenience of a plug-and-play manifold with guaranteed compatible parts is worth the premium compared to piecing together fittings from a hardware store. The main quality concern is the plastic end caps, which may degrade over time in harsh conditions.

Who Should Buy This Kit

If you are running front and rear air lockers with an ARB CKMTA12 twin compressor, this manifold kit is required. It provides the solenoid mounting and air distribution you need to actuate both lockers independently from a single compressor. Without this kit, you would need to fabricate your own manifold and source compatible fittings, which is not worth the effort for most builders.

Installation Tips

Mount the manifold close to the compressor for short, clean air lines. The manifold body includes a mounting bracket, and many users report it fits perfectly on popular aftermarket mounting brackets like the Teraflex unit. Use thread sealant on all fittings and pressure-test the system before buttoning up your installation.

13. ARB CKMP12 - Best Portable Compressor for Trail Use

The ARB CKMP12 is a portable air compressor that gives you ARB quality without a permanent underhood installation. With 355 reviews and a 4.6 star rating, it is one of the most popular portable compressors in the off-road community. Eighty-three percent of reviewers gave it five stars, which is remarkable for a portable unit at this price point.

This compressor delivers 2.65 CFM at 0 PSI, which is a class-leading flow rate for a portable 12V unit. It fills 35-inch tires quickly, and the included 19-foot air hose with battery clips gives you plenty of reach to work around your vehicle. The carry case keeps everything organized and protected when you are not using it.

I like the CKMP12 for trail rigs where you want compressor capability without committing to a permanent install. You can power it from your battery with the included clips, air up your tires after a trail run, and then stow it away. The sealed design protects against moisture and dust, and the hard-anodized cylinder bore with Teflon-impregnated carbon fiber piston seal ensures long life.

The main limitation is duty cycle. While the CKMP12 handles normal trail use without overheating, continuous inflation of multiple large tires in hot weather can push it past its thermal limits. ARB includes an over-pressure safety valve and internal thermal protection, but if you regularly air up four 37-inch or larger tires, the twin CKMTA12 is a better long-term solution.

Who Should Buy This Compressor

The CKMP12 is ideal for weekend wheelers who want reliable tire inflation without the complexity of a permanent compressor install. It is also great as a backup compressor for rigs that already have onboard air but need redundancy for group trail rides. If you help other drivers air up on the trail, having a portable unit in your recovery kit is a smart move.

What Comes in the Box

The CKMP12 includes the compressor unit, 19-foot air hose, battery clips with power cable, inflation kit with multiple tip adapters, and a durable carry case. Note that it does not include a pressure gauge, so you will need a separate tire pressure gauge to monitor your inflation. The air chuck is somewhat short, which some users found inconvenient when holding it against the valve stem.

How to Choose the Right Air Locker Differential

Selecting the right air locker differential comes down to matching the locker to your specific axle, gear ratio, and intended use. After working through these products, here are the key factors I recommend considering before you make a purchase.

Axle Compatibility and Spline Count

The single most important specification is your axle type and spline count. ARB makes specific locker models for Dana 30, Dana 44, Dana 60, Ford 8.8, Toyota 8 inch, and 12 bolt axles, among others. Within each axle type, you must match the spline count on your axle shafts. Running a 27 spline locker on 30 spline shafts, or vice versa, will not work. Count your splines or check your axle specifications before ordering anything.

Gear Ratio Requirements

Many ARB air lockers only fit specific gear ratio ranges. For example, the RD116 fits Dana 44 axles with 3.92 and numerically higher ratios, while the RD117 fits the same axle with 3.73 and numerically lower ratios. Some models like the RD132 for Toyota 8 inch axles work with all gear ratios. Check your current gear ratio by counting ring gear teeth or reading the axle tag. Getting this wrong means the locker will not fit your carrier.

Compressor Requirements

Every air locker requires a compressor to actuate the locking mechanism. For a single locker, the ARB CKMA12 single compressor or the CKMP12 portable unit will work. For dual front and rear lockers, I recommend the CKMTA12 twin compressor paired with the 171503 manifold kit. The compressor is a separate purchase that adds to the total cost, so factor it into your budget from the start.

Installation Complexity

Air locker installation is not a beginner-level project. It requires setting up the differential carrier with proper backlash, carrier bearing preload, and air line routing. Most vehicle owners should plan for professional installation, which typically runs 4 to 8 hours of shop labor. Toyota owners have an advantage here because the removable third member design allows bench assembly. As forum users have noted, most ARB problems trace back to installation errors rather than product defects.

Front vs Rear Locker Considerations

If you can only afford one locker, I recommend starting with the rear. A rear locker provides the most noticeable traction improvement in most off-road situations because the rear axle handles most of the driving torque. However, front lockers are valuable for rock crawling and steep climbs where front wheel placement matters. Running both front and rear lockers gives you the ultimate in selectable traction but requires a twin compressor and manifold setup.

Final Thoughts on Air Locker Differentials

Finding the best air locker differentials for your build comes down to matching the right model to your axle, gear ratio, and how you use your vehicle. For Jeep Wrangler JK and JL owners, the ARB RD100 is a standout with its perfect rating and proven trail performance. The Yukon Zip Locker offers impressive value for Dana 30 builds, while the ARB RD116 covers the classic Jeep crowd with similar five-star reliability.

Do not forget the compressor side of the equation. A great locker is useless without reliable air supply. The ARB CKMTA12 twin compressor handles dual lockers and tire inflation with ease, while the CKMA12 Inflation Kit provides everything you need in one box for single-locker setups. Budget for both the locker and compressor together, and plan for professional installation unless you have differential setup experience.

Take your time verifying axle type, spline count, and gear ratio before you order. The right air locker, properly installed, will transform your off-road experience and give you traction you can count on for years to come.