Part #: YA W39127
The Yukon Gear & Axle 4340 Chromoly Outer Stub is a high-performance axle component engineered specifically for Jeep Wrangler JK models from 2007 through 2018, including the 3.8L V6, 3.6L V6, and 2.0L Turbo engines. Designed for off-road enthusiasts and daily drivers alike, this outer stub axle delivers exceptional strength and durability to withstand the rigors of demanding terrain and heavy-duty use.
Built to enhance drivetrain reliability, this axle stub is an ideal upgrade for Jeep owners seeking to improve their vehicle’s axle toughness without compromising factory fitment or drivability. It is especially suited for those who push their Wranglers in off-road environments or require a dependable replacement part that meets or exceeds OEM standards.
Yukon Gear & Axle incorporates advanced manufacturing techniques and premium materials to ensure superior performance and longevity. Key features include:
This outer stub axle is crafted from premium 4340 chromoly steel, known for its exceptional tensile strength and toughness. The use of chromoly steel ensures the axle can endure high torque loads and resist bending or breaking under extreme conditions. The cold roll forming process used on the splines enhances their structural integrity, resulting in a more precise and durable engagement with the axle shaft.
Additionally, the induction coil heat treating process hardens the surface of the axle stub, improving wear resistance and extending service life. This combination of materials and manufacturing techniques results in an axle component that delivers reliable performance in both on-road and off-road environments.
The Yukon 4340 Chromoly Outer Stub is designed for direct fitment on Jeep Wrangler JK models from 2007 to 2018, covering engines including the 3.8L V6, 3.6L V6, and 2.0L Turbo. Installation is straightforward and typically requires no modifications, making it an excellent replacement or upgrade part for maintaining or enhancing axle durability.
Professional installation is recommended to ensure proper torque specifications and alignment, but experienced enthusiasts with the right tools can perform the swap with standard axle service procedures.
This outer stub axle is ideal for Jeep Wrangler JK owners who demand enhanced drivetrain strength for off-road adventures, rock crawling, or heavy-duty daily driving. It suits those upgrading from factory components to improve axle durability and reliability under increased stress conditions.
Whether you are restoring your Jeep, preparing it for trail use, or simply replacing a worn or damaged axle stub, this Yukon Gear & Axle product offers a dependable solution engineered for long-lasting performance.
Yukon Gear & Axle supplies hardcore drivetrain components—ring & pinion gears, axles, lockers, and differential upgrades—built for off-road and high-load performance. Trusted by enthusiasts and installers, Yukon focuses on fit, strength, and proven options for re-gearing and reinforcing trucks and 4x4s running bigger tires and tougher terrain.
ETA stands for Estimated Time of Arrival. The date shown is calculated using our Available-to-Promise (ATP) system, which tracks real-time supplier commitments to determine when a product is expected to be available for delivery. Specifically, the date is calculated by adding 9 business days from the date a supplier has committed to ship the product, representing a worst-case scenario for when we can expect to receive inventory.
Please note: The ETA is an estimate, not a guarantee. While we work closely with our suppliers to keep dates as accurate as possible, delays due to shipping carriers, weather, customs, or supplier-side issues may occasionally push the actual arrival beyond the date shown. Likewise, inventory may arrive sooner than the ETA in many cases. If you would like to be notified for when this item arrives, sign up for our back in stock notifications!
YA W39127 Yukon Gear & Axle 07-18 Jeep Wrangler Outer Stub. Yukon high-performance axles are crafted from high-tensile 4340 chromoly for exceptional strength and durability. Featuring cold roll formed splines and advanced induction coil heat treating, these outer stubs deliver superior reliability and long-lasting performance. Ideal for off-road enthusiasts seeking robust, high-quality axle components that withstand demanding conditions.
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Part #: YA W39127
The Yukon Gear & Axle 4340 Chromoly Outer Stub is a high-performance axle component engineered specifically for Jeep Wrangler JK models from 2007 through 2018, including the 3.8L V6, 3.6L V6, and 2.0L Turbo engines. Designed for off-road enthusiasts and daily drivers alike, this outer stub axle delivers exceptional strength and durability to withstand the rigors of demanding terrain and heavy-duty use.
Built to enhance drivetrain reliability, this axle stub is an ideal upgrade for Jeep owners seeking to improve their vehicle’s axle toughness without compromising factory fitment or drivability. It is especially suited for those who push their Wranglers in off-road environments or require a dependable replacement part that meets or exceeds OEM standards.
Yukon Gear & Axle incorporates advanced manufacturing techniques and premium materials to ensure superior performance and longevity. Key features include:
This outer stub axle is crafted from premium 4340 chromoly steel, known for its exceptional tensile strength and toughness. The use of chromoly steel ensures the axle can endure high torque loads and resist bending or breaking under extreme conditions. The cold roll forming process used on the splines enhances their structural integrity, resulting in a more precise and durable engagement with the axle shaft.
Additionally, the induction coil heat treating process hardens the surface of the axle stub, improving wear resistance and extending service life. This combination of materials and manufacturing techniques results in an axle component that delivers reliable performance in both on-road and off-road environments.
The Yukon 4340 Chromoly Outer Stub is designed for direct fitment on Jeep Wrangler JK models from 2007 to 2018, covering engines including the 3.8L V6, 3.6L V6, and 2.0L Turbo. Installation is straightforward and typically requires no modifications, making it an excellent replacement or upgrade part for maintaining or enhancing axle durability.
Professional installation is recommended to ensure proper torque specifications and alignment, but experienced enthusiasts with the right tools can perform the swap with standard axle service procedures.
This outer stub axle is ideal for Jeep Wrangler JK owners who demand enhanced drivetrain strength for off-road adventures, rock crawling, or heavy-duty daily driving. It suits those upgrading from factory components to improve axle durability and reliability under increased stress conditions.
Whether you are restoring your Jeep, preparing it for trail use, or simply replacing a worn or damaged axle stub, this Yukon Gear & Axle product offers a dependable solution engineered for long-lasting performance.
Yukon Gear & Axle supplies hardcore drivetrain components—ring & pinion gears, axles, lockers, and differential upgrades—built for off-road and high-load performance. Trusted by enthusiasts and installers, Yukon focuses on fit, strength, and proven options for re-gearing and reinforcing trucks and 4x4s running bigger tires and tougher terrain.
Free Standard Shipping on orders over $300. Select “Free Shipping” at checkout. *Exclusions apply on oversized and freight items.
Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.
Free Standard Shipping on orders over $300. Select “Free Shipping” at checkout. *Exclusions apply on oversized and freight items.
Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.
