Built for the ARB RD129 Air Locker Differential for Toyota Rear Axle - Instant Locking 4WD Traction Aid, this ARB component delivers rugged durability, precise fitment, and trail-ready performance. Engineered for serious off-road use while maintaining everyday drivability.
The ARB RD129 Air Locker Differential is a premium traction enhancement solution designed for Toyota trucks, including Tacoma and Tundra models from 2004 to 2015. Constructed from durable steel and finished in a sleek silver, this differential provides reliable performance in rugged off-road conditions. With the simple flick of a switch, the Air Locker instantly engages, locking the differential and ensuring maximum traction on challenging terrains. Its pneumatically operated locking system allows activation at any speed, making it an ideal choice for overcoming obstacles and maintaining control in adverse environments. When disengaged, it operates as a conventional open differential, providing smooth and predictable on-road handling. This feature helps reduce driveline wear and enhances vehicle safety, especially in unpredictable off-road situations. Designed specifically for the rear axle of Toyota vehicles with an 8.4-inch axle, 1.31-inch shaft, 30 spline, and an all-ratio compatibility, the ARB RD129 offers a seamless fit and robust performance. Easy to install and built to withstand demanding conditions, it is an essential upgrade for serious off-road enthusiasts seeking maximum traction and reliability. Please note that this product requires LTL freight shipping and carries a Prop 65 warning for cancer and reproductive harm, as detailed at www.P65Warnings.ca.gov. Improve your vehicle's capability with the ARB RD129 Air Locker Differential and confidently tackle the toughest terrains with ease.
Features:
- Instant lock activation with a switch for on-demand traction
- Pneumatically operated locking system allows engagement at any speed
- Constructed from high-strength steel for durability in harsh conditions
- Designed for rear axles of Toyota trucks with 8.4-inch axles and 30 spline shafts
- Operates as an open differential when unlocked, ensuring smooth on-road handling
- Reduces driveline wear and vehicle damage during off-road use
- Easy to install with a precise fit for Toyota models from 2004 to 2015
- Finished in a corrosion-resistant silver coating for longevity
Fitment:
Toyota Tacoma 1996
Toyota Tacoma 1997
Toyota Tacoma 1998
Toyota Tacoma 1999
Toyota Tacoma 2000
Toyota Tacoma 2001
Toyota Tacoma 2002
Toyota Tacoma 2003
Toyota Tacoma 2004
Toyota Tacoma 2005
Toyota Tacoma 2006
Toyota Tacoma 2007
Toyota Tacoma 2008
Toyota Tacoma 2009
Toyota Tacoma 2010
Toyota Tacoma 2011
Toyota Tacoma 2012
Toyota Tacoma 2013
Toyota Tacoma 2014
Toyota Tacoma 2015
Toyota Tundra 2000
Toyota Tundra 2001
Toyota Tundra 2002
Toyota Tundra 2003
Toyota Tundra 2004
Toyota Tundra 2005
Toyota Tundra 2006
Currently, we do not have an installation guide available for this product. Please contact support for assistance.
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Most orders ship within 3-5 business days. For backordered items, please allow 2-3 weeks.
If you need your product urgently, our support team is ready to assist you.
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Returns & Exchanges:
- A 25% Damage Fee will be charged if items arrive damaged.
- All returns must be authorized within 14 days after delivery.
- Returns/Exchanges are accepted only if initiated within 15 days of the original invoice date.
- Products must be repacked in original packaging and in new, sellable condition.
- Shipping is non-refundable. Free shipping items will have standard shipping fees deducted from the refund.
- Customer is responsible for return shipping costs.
- Refunds processed only after inspection (may take up to 14 days).
- Allow 7-10 days after inspection for refund to appear on your account.
Obtaining Return Authorization:
- Email info@kovoffroad.com to request a return.
- All approved returns must be mailed to:
KOVA OFFROAD
Attn: RETURNS - Order ####
555 E Queen Creek Rd #A
Chandler AZ 85286
- Include your order number inside and outside the package.
Defective Items:
- Report defective items within 30 days for warranty claims.
- KOVA OFFROAD covers shipping if item is defective.
- If item is not defective, customer pays return shipping.
Order Cancellations & Changes:
- Orders can be canceled or changed within 72 hours of placing the order.
- 3rd party vendor items (lights, shocks, etc.) may carry a 20% change/cancellation fee after 72 hours.
- Some items (Garage Sale, Special Orders, Pre-Orders, Group Buys) are non-returnable.
Fitment:
- Customers are responsible for verifying product fitment before purchase.
Notes:
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- Questions? Call us at (830)-896-7571 or contact info@kovoffroad.com

