ARB
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ARB RD166 Air Locking Differential
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ARB RD166 Air Locking Differential
ARB Air Lockers will enhance the traction of your 4×4 in just about any terrain, whether it’s rock, clay, gravel, sand, snow or mud.
ARB RD166 Air Locking Differential
ARB

Item #: 15291334

ARB RD166 Air Locking Differential

Item #: 15291334

INR 154854

Price Details

Price

INR 154854

M.R.P. INR 154854

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

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ARB Air Lockers will enhance the traction of your 4×4 in just about any terrain, whether it’s rock, clay, gravel, sand, snow or mud.
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What Stands Out

Enhanced Traction
The ARB RD166 offers unparalleled traction by automatically locking differentials, ensuring power is distributed evenly to the wheels, perfect for off-road performance and tackling challenging terrains.
Durable Design
Constructed from high-quality materials, the RD166 is built to withstand extreme conditions, providing long-lasting reliability and peace of mind for adventurous drivers in tough environments.
Easy Installation
With a user-friendly design, the ARB RD166 allows for straightforward installation, making it accessible for both professional and DIY enthusiasts who want to enhance their vehicle's off-road capabilities.

Product Details

Find the ARB RD166 Air Locking Differential at Ubuy India. Designed and manufactured in Australia, these lockers will improve traction in rock, clay, gravel, sand, snow, and mud. With a two-piece design, forged gears, and a five-year warranty, they are built to last.
  • ARB RD166 Air Locking Differential for use with 35 Spline Full Floating Axles
  • Air activated selectable locker for converting from open differential to fully locked or spool
  • Requires air compressor, sold separately
  • Designed and manufactured in Australia with a relentless commitment to research and design
  • Enhances traction in any terrain, including rock, clay, gravel, sand, snow, or mud
  • Two-piece design with forged gears for superior strength and durability

Who Should Buy?

Suitable For
  • Off-Road Enthusiasts

    Ideal for users who frequently engage in off-roading, providing enhanced traction and stability on rugged terrains.

  • Heavy Towing

    Beneficial for those who tow heavy loads, improving vehicle control and reducing wheel spin while driving.

  • Extreme Weather Drivers

    Perfect for drivers in snowy or icy conditions, enhancing grip and maneuverability on slippery surfaces.

Not Suitable For
  • Casual Drivers

    Not suitable for everyday drivers who only require standard traction without the need for advanced differential features.

Product Description

ARB RD166 Air Locking Differential

About This Item

Introducing the ARB RD166 Air Locking Differential - the ultimate traction enhancer for your 4x4 adventures. Proudly designed and manufactured in Australia, this locking differential is trusted by drivers in over 100 countries worldwide. With a relentless commitment to research and design, ARB has crafted the RD166 using only the highest quality materials. This means you can rely on its uncompromising strength and durability, no matter the terrain you're conquering - be it rock, clay, gravel, sand, snow, or mud. What sets the ARB RD166 apart is its state-of-the-art two-piece design, now available across the entire range.

This advanced design is combined with forged gears, providing exceptional strength to withstand the toughest conditions. Backed by an industry-leading five-year warranty, the RD166 is built to last and to outperform any other locking differential on the market. Installation is a breeze with the ARB RD166. Designed for use with 35 spline full floating axles, this air-activated selectable locker easily converts from an open differential to a fully locked or spool configuration.

Please note that an air compressor is required for operation, which is sold separately. At Ubuy, we offer the best deals on the ARB RD166 Air Locking Differential. Our online store is dedicated to providing top-rated, high-quality products at affordable prices. With free shipping and a wide range of compatible vehicles, you can trust Ubuy to have everything you need to enhance your off-road capabilities. But don't just take our word for it - read customer reviews and see why the ARB RD166 Air Locking Differential is a popular choice among off-roading enthusiasts.

Experience the difference in performance and reliability that comes with an ARB product. For your convenience, Ubuy also offers an installation guide, maintenance tips, and troubleshooting advice, so you can make the most out of your ARB RD166. We are here to support you throughout your journey. So why wait? Take advantage of our amazing deals and discover the advantages of the ARB RD166 Air Locking Differential today. Don't miss out on the opportunity to elevate your off-roading experience.

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Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is the ARB RD166 Air Locking Differential?

    Answer: The ARB RD166 Air Locking Differential is a high-performance differential designed to enhance the traction of your 4x4 vehicle. It features an air-operated locking mechanism that allows the driver to engage or disengage the locking function, maximizing grip in challenging off-road conditions. This is particularly useful for traversing slippery surfaces like mud, snow, or rocky terrains where wheel slip may occur. By keeping both wheels on an axle turning at the same speed, it significantly improves your vehicle’s off-road capability.
  • Question: How does the ARB RD166 work?

    Answer: This differential operates using compressed air to lock and unlock the gears inside it. When activated, it locks both wheels on an axle together, ensuring they turn in unison for optimal performance. The activation mechanism is typically controlled by a switch on the dashboard, allowing for seamless transitions when needed. This system is vital for off-road driving, enabling better traction during sudden obstacles or slippery conditions.
  • Question: What vehicles is the ARB RD166 compatible with?

    Answer: The ARB RD166 Air Locking Differential is specifically designed for certain 4x4 vehicles, particularly those with a Dana 30 Axle. It's ideal for off-road enthusiasts looking to enhance their vehicle's capability. Always consult your vehicle's documentation and include modifications that may be necessary for installation. It's essential to ensure compatibility to allow full performance and reliability in rugged conditions.
  • Question: Is installation of the ARB RD166 complex?

    Answer: Installation of the ARB RD166 requires moderate mechanical knowledge and skill since it involves disassembling the axle assembly. It’s generally recommended to have the differential installed by a professional mechanic or an experienced off-road enthusiast. Proper installation ensures the locking functionality operates correctly and maintains optimal performance, ultimately leading to better off-road experiences and safety.
  • Question: Can the ARB RD166 be used on highways?

    Answer: Yes, the ARB RD166 can be used on highways; however, it’s best utilized in off-road conditions. When the locking mechanism is engaged, it’s advisable to disengage it when driving on paved roads to prevent tire wear and maintain safe handling. For optimal performance, users typically activate the lock during off-road adventures and revert to normal operation when driving in regular conditions.
  • Question: What are the advantages of using the ARB RD166 over conventional differentials?

    Answer: The main advantage of the ARB RD166 over conventional open differentials is its ability to provide maximum traction by locking both wheels together. In situations where traction is uneven, such as split surfaces or off-road obstacles, it minimizes wheel spin, allowing you to maintain momentum. This proactive approach to traction management significantly enhances your vehicle's performance in off-road scenarios, making it ideal for adventurers and terrain explorers.
  • Question: How is the air system for the ARB RD166 powered?

    Answer: The ARB RD166 air-locking mechanism operates using an onboard air compressor system. Users can install an ARB Air Compressor that allows for convenient inflation and actuation of the locking differential. This not only powers the locking mechanism but can also be used to inflate tires, making it a versatile addition to your off-road gear. Having the compressor readily available ensures you can easily react to changing terrain conditions.
  • Question: What maintenance is required for the ARB RD166 Air Locking Differential?

    Answer: Maintaining the ARB RD166 involves periodic inspections for air leaks in the locking system, fluid changes, and ensuring that the air compressor is functioning well. Regular checks on differential fluid levels and quality are essential to keep the system efficient. Proper maintenance enhances the longevity of the unit and ensures optimal performance during off-road use, providing peace of mind for users frequently engaging in challenging terrain.
  • Question: What type of lubricant should I use with the ARB RD166?

    Answer: For the ARB RD166 Air Locking Differential, it is recommended to use high-quality gear oil that complies with the manufacturer's specifications. Look for lubricants specifically designed for use in differentials, ensuring they provide adequate protection and performance under various driving conditions. Proper lubrication is crucial for the smooth operation of the differential and to minimize wear and tear on the internal components.
  • Question: Where can I buy ARB RD166 Air Locking Differential in India?

    Answer: You can buy the ARB RD166 Air Locking Differential from Ubuy in India. Ubuy features a range of automotive parts, including the ARB RD166, making it a reliable option for your purchase. The platform often provides convenient shopping options, allowing you to find the product that matches your needs efficiently.

ARB Differential Assembly Kits Editorial Review

The ARB RD166 Air Locking Differential is a reliable off-road equipment for your car. It is compatible with Dana 60 with 35 spline axles and 4.56 & up gear ratio. It will fit on the 9.75" Dana 60s that came on the front or rear for the F250/350s of certain years. However, for the 9" Ford, you need to order either RD119 for 31 spline or RD99 for 35 spline. Overall, the product is great for anyone who loves off-roading.

Customer Reviews & Ratings

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Pros

  • Reliable and durable
  • Compatible with specific axle types and gear ratios
  • Provides better off-road performance

Cons

  • Needs to be manually engaged and disengaged

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“Quality, fit, and variety are all good. Very good quality, perfect fit, with a good variety in 70s Bellbottom jeans. Keep them coming.”

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“Everything was well maintained and smooth . We can trust UBUY .”

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“Product is nice. Well packaged and delivered promptly”

23 July 2026 · via Trustpilot
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“Product was delivered before time. At each steps remider given time to time ,product is also good and fruitful”

3 July 2026 · via Trustpilot
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siva
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“I received the product properly packed and without any damage. If you can provide a video showing how to assemble the parts, it would be a great help. Thanks & Regards, Siva Prakash.”

16-Jul-26 · via Trustpilot
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INR 154854

Order now and get it around Saturday, August 15

QTY:

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Fastest cross-border delivery

Features & Benefits

  • Relentless commitment to research and design
  • Quality materials used in production
  • Uncompromising approach to manufacturing
  • State-of-the-art two-piece design available
  • Industry-leading five-year warranty
  • Enhanced traction in various terrains

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