Yukon Gear & Axle Performance Axles
2007–2011 Jeep Wrangler 3.8L V6, 2012 Jeep Wrangler 3.6L V6
Part #: YA W38827
Overview
The Yukon Gear & Axle 4340 Chrome-Moly Left Inner Axle is engineered specifically for Jeep Wrangler JK models from 2007 to 2012 equipped with 3.6L or 3.8L V6 engines. Designed for off-road enthusiasts and performance seekers, this axle delivers exceptional strength and durability to handle demanding driving conditions. Whether you’re tackling rugged trails or upgrading your drivetrain for enhanced reliability, this high-performance axle provides the confidence and toughness your Jeep needs.
Built to exceed OEM standards, this axle is an ideal replacement or upgrade for those looking to improve their vehicle’s drivetrain resilience without compromising fitment or function. It is precision manufactured to ensure a perfect fit and long-lasting performance in your Jeep Wrangler JK.
Key Features
Yukon Gear & Axle incorporates advanced manufacturing techniques and premium materials to produce an axle that stands up to the toughest environments. Key features include:
- Constructed from high-tensile strength 4340 chrome-moly steel for superior durability
- Cold roll formed splines for enhanced strength and precise fitment
- Advanced induction coil heat treating process to increase wear resistance and toughness
- Designed specifically as a left inner axle for Jeep Wrangler JK 3.6L and 3.8L V6 models
- Engineered to withstand high torque and off-road stresses
- OEM-compatible dimensions for straightforward installation
- Corrosion-resistant finish to extend service life in harsh conditions
Construction & Design
This axle is crafted from premium 4340 chrome-moly steel, known for its exceptional tensile strength and fatigue resistance. The material choice ensures the axle can endure the rigors of off-road driving and high-performance applications without failure. The cold roll forming of the splines enhances the metal’s grain structure, resulting in increased strength and a precise, tight fit with the differential and wheel hub components.
Yukon’s advanced induction coil heat treating process further hardens the axle surface, improving wear resistance and extending the component’s lifespan. This combination of materials and manufacturing techniques results in an axle that delivers reliable performance mile after mile.
Installation & Fitment
The Yukon 4340 Chrome-Moly Left Inner Axle is designed as a direct fit replacement for Jeep Wrangler JK models from 2007 to 2011 with the 3.8L V6 engine and the 2012 model with the 3.6L V6 engine. Installation requires no modifications to the vehicle’s drivetrain, making it a straightforward upgrade for mechanics and experienced DIYers alike.
Proper installation ensures optimal drivetrain performance and longevity. It is recommended to have the axle installed by a qualified technician or follow detailed service manuals to maintain vehicle safety and reliability.
What’s Included
- One Yukon Gear & Axle 4340 Chrome-Moly Left Inner Axle (Part # YA W38827)
Ideal For
This axle is perfect for Jeep Wrangler JK owners who demand enhanced durability and performance from their drivetrain components. It suits off-road enthusiasts, daily drivers seeking reliable OEM replacement parts, and anyone upgrading their vehicle for higher torque applications or rugged terrain use. The Yukon axle offers peace of mind with its robust construction and precise fitment, making it a smart investment for maintaining or improving your Jeep’s drivetrain integrity.
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.
Yukon Gear & Axle 4340 Chrome-Moly Left Inner Axle: Jeep Wrangler JK 2007-2012 3.6L/3.8L V6
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YA W38827 Yukon Gear & Axle 07-12 Jeep Wrangler Left Inner Axle. 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, this axle ensures superior wear resistance and long-lasting performance. Ideal for demanding off-road conditions, it provides reliable power transfer and enhanced drivetrain toughness for your Jeep Wrangler 3.6L/3.8L V6.
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Yukon Gear & Axle Performance Axles
2007–2011 Jeep Wrangler 3.8L V6, 2012 Jeep Wrangler 3.6L V6
Part #: YA W38827
Overview
The Yukon Gear & Axle 4340 Chrome-Moly Left Inner Axle is engineered specifically for Jeep Wrangler JK models from 2007 to 2012 equipped with 3.6L or 3.8L V6 engines. Designed for off-road enthusiasts and performance seekers, this axle delivers exceptional strength and durability to handle demanding driving conditions. Whether you’re tackling rugged trails or upgrading your drivetrain for enhanced reliability, this high-performance axle provides the confidence and toughness your Jeep needs.
Built to exceed OEM standards, this axle is an ideal replacement or upgrade for those looking to improve their vehicle’s drivetrain resilience without compromising fitment or function. It is precision manufactured to ensure a perfect fit and long-lasting performance in your Jeep Wrangler JK.
Key Features
Yukon Gear & Axle incorporates advanced manufacturing techniques and premium materials to produce an axle that stands up to the toughest environments. Key features include:
- Constructed from high-tensile strength 4340 chrome-moly steel for superior durability
- Cold roll formed splines for enhanced strength and precise fitment
- Advanced induction coil heat treating process to increase wear resistance and toughness
- Designed specifically as a left inner axle for Jeep Wrangler JK 3.6L and 3.8L V6 models
- Engineered to withstand high torque and off-road stresses
- OEM-compatible dimensions for straightforward installation
- Corrosion-resistant finish to extend service life in harsh conditions
Construction & Design
This axle is crafted from premium 4340 chrome-moly steel, known for its exceptional tensile strength and fatigue resistance. The material choice ensures the axle can endure the rigors of off-road driving and high-performance applications without failure. The cold roll forming of the splines enhances the metal’s grain structure, resulting in increased strength and a precise, tight fit with the differential and wheel hub components.
Yukon’s advanced induction coil heat treating process further hardens the axle surface, improving wear resistance and extending the component’s lifespan. This combination of materials and manufacturing techniques results in an axle that delivers reliable performance mile after mile.
Installation & Fitment
The Yukon 4340 Chrome-Moly Left Inner Axle is designed as a direct fit replacement for Jeep Wrangler JK models from 2007 to 2011 with the 3.8L V6 engine and the 2012 model with the 3.6L V6 engine. Installation requires no modifications to the vehicle’s drivetrain, making it a straightforward upgrade for mechanics and experienced DIYers alike.
Proper installation ensures optimal drivetrain performance and longevity. It is recommended to have the axle installed by a qualified technician or follow detailed service manuals to maintain vehicle safety and reliability.
What’s Included
- One Yukon Gear & Axle 4340 Chrome-Moly Left Inner Axle (Part # YA W38827)
Ideal For
This axle is perfect for Jeep Wrangler JK owners who demand enhanced durability and performance from their drivetrain components. It suits off-road enthusiasts, daily drivers seeking reliable OEM replacement parts, and anyone upgrading their vehicle for higher torque applications or rugged terrain use. The Yukon axle offers peace of mind with its robust construction and precise fitment, making it a smart investment for maintaining or improving your Jeep’s drivetrain integrity.
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.
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YEARMAKEMODELSUBMODEL2012JeepWrangler3.6L V62007 - 2011JeepWrangler3.8L V6
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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.
Standard shipping
Free Standard Shipping on orders over $300. Select “Free Shipping” at checkout. *Exclusions apply on oversized and freight items.
Free Easy Returns
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.