Yukon Gear 4340 Chrome-Moly Replacement Outer Stub For Dana 44 / Jeep JK Rubicon - Black Ops Auto Works
Click to zoom in

Yukon Gear 4340 Chrome-Moly Replacement Outer Stub For Dana 44 / Jeep JK Rubicon

YUKYA W39127
883584216841
Axles
20+ Units In Stock - Ships Next Business Day
$ 241.89
$ 241.89

SKU: YA W39127 | UPC: 883584216841

Yukon Gear 4340 Chrome-Moly Replacement Outer Stub For Dana 44 Jeep Wrangler JK Rubicon 2007-2018

Upgrade your Jeep Wrangler JK Rubicon with the Yukon Gear YA W39127 4340 Chrome-Moly replacement outer stub axle designed for Dana 44 front axles. Engineered for extreme off-road conditions this axle delivers up to 50% more strength than factory units handling large tires and high horsepower builds with ease. Fits 2007-2018 Jeep Wrangler JK models including Rubicon Sahara Sport and Unlimited variants.

Key Features

  • 4340 Chrome-Moly Steel – High-strength alloy provides exceptional durability and resistance to breakage under heavy loads.
  • 50% Strength Increase – Direct replacement outperforms stock axles in demanding applications with oversized tires and powerful engines.
  • Precision Manufacturing – Built with advanced processes for exact fit smooth operation and extended service life.
  • Dana 44 Compatibility – Tailored for Jeep JK front high-pinion Dana 44 axles in Rubicon models.
  • Limited Lifetime Warranty – Covers defects and breakage while vehicle owner no questions asked on first claim.
  • USA Made Quality – Crafted to rigorous standards for reliability in extreme terrain.

Specifications

Detail Value
Brand Yukon Gear &amp. Axle
Type Replacement Outer Stub Axle
Compatibility Dana 44 Front Axle Jeep Wrangler JK 2007-2018
Material 4340 Chrome-Moly Steel
MPN YA W39127
Shipping Weight 3.85 lbs
Shipping Dimensions 14 x 4 x 4 inches
Country of Origin USA
Warranty Limited Lifetime manufacturing defects and breakage

Whats Included

  • 1 x Yukon 4340 Chrome-Moly Outer Stub Axle YA W39127

Product Notes

  • Warranty valid for original owner only non-transferable first return no questions asked subsequent claims may result in replacement or refund at Yukon discretion.
  • Designed for Dana 44 front axles in Jeep JK Rubicon confirm your axle type before purchase.
  • Ideal for lifted Jeeps with 35+ inch tires and aftermarket differentials.

This Part Fits

Year Range Make Model Notes
2011 Jeep Wrangler 70th Anniversary
2016 Jeep Wrangler 75th Anniversary
2007-2018 Jeep Wrangler Rubicon
2007-2017 Jeep Wrangler Sahara
2010-2018 Jeep Wrangler Sport
2016,2018 Jeep Wrangler Sport S
2011 Jeep Wrangler Unlimited 70th Anniversary
2016 Jeep Wrangler Unlimited 75th Anniversary
2018 Jeep Wrangler Unlimited Moab
2007-2018 Jeep Wrangler Unlimited Rubicon
2007-2018 Jeep Wrangler Unlimited Sahara
2010-2018 Jeep Wrangler Unlimited Sport
2016,2018 Jeep Wrangler Unlimited Sport S
2007-2010 Jeep Wrangler Unlimited X
2007-2010 Jeep Wrangler X
2018 Jeep Wrangler JK Rubicon
2018 Jeep Wrangler JK Sahara
2018 Jeep Wrangler JK Sport
2018 Jeep Wrangler JK Sport S
2018 Jeep Wrangler JK Unlimited Rubicon
2018 Jeep Wrangler JK Unlimited Sahara
2018 Jeep Wrangler JK Unlimited Sport
2018 Jeep Wrangler JK Unlimited Sport S

Why Choose Yukon Gear?

  • 4340 Chrome-Moly axles built for 50% greater strength in high-stress off-road use.
  • Advanced manufacturing ensures precise fit and long-lasting performance.
  • Limited lifetime warranty protects your investment through rigorous testing.
  • Trusted by Jeep enthusiasts for Dana 44 upgrades in JK Wranglers.

Frequently Asked Questions

  • Q: Will this fit non-Rubicon JK Wranglers?
  • A: Designed for Dana 44 front axles primarily in Rubicon models verify your axle configuration.
  • Q: What is the warranty process?
  • A: First claim is no questions asked replacement subsequent claims reviewed by Yukon for replacement or refund.
  • Q: Is professional installation required?
  • A: Recommended for proper torque and alignment contact a certified shop for best results.

Shipping & Handling

  • Method: UPS Ground
  • Availability: In stock – ships same or next business day
  • Packaging: Securely boxed 14 x 4 x 4 inches 3.85 lbs

Request For Information

Have questions about Yukon Gear 4340 Chrome-Moly Replacement Outer Stub For Dana 44 / Jeep JK Rubicon? Fill out the form below and we'll get back to you by the next business day.
Axles

Axles

Performance axle shafts and complete axles for street cars, drag builds, trucks, Jeeps, and all-wheel-drive platforms are stocked at Black Ops Auto Works. Shop heavy-duty CV axles, front axle shafts, rear axle shafts, chromoly axles, 300M axles, drag-race axles, off-road axle upgrades, hubs, CV joints, spline-matched replacement axles, and drivetrain components for Trackhawk, Durango Hellcat, Charger, Challenger, Subaru WRX and STI, Honda, Nissan Skyline, GM trucks, and Ford applications. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 241 axle SKUs across front and rear drive positions, axle-shaft materials, CV configurations, spline counts, power ratings, and vehicle-specific drivetrain systems. What This Axle Collection Covers Axles transfer torque from the differential or transaxle to the driven wheels. This collection includes upgraded shafts and replacement units for perfo...

View Axles Products
Axles & Components

Axles & Components

Performance axles and axle components for high horsepower Mopar Hellcat and Trackhawk platforms, sport compact swaps, and classic muscle cars and trucks are stocked at Black Ops Auto Works. Shop upgraded CV axle shafts, axle seals, axle disconnect kits, and OE style replacement axles from DSS, USA Standard, Yukon Gear and Axle, and G Force for Jeep, Dodge, Honda, Subaru, Nissan, and classic GM truck platforms. Every axle is filterable by year, make, model, trim, and horsepower rating so the correct spline count, length, and CV joint configuration ships the first time. Black Ops Auto Works carries 276 axle and axle component SKUs across Mopar Hellcat and Trackhawk, JDM and sport compact swap platforms, and classic GM truck and passenger car applications. What This Collection Covers Axle shafts transmit engine and transmission torque from the differential to the wheels, and factory axles are engineered around factory horsepower and torque figures with limited safety margin for sig...

View Axles & Components Products
Drivetrain

Drivetrain

Drivetrain parts for high-horsepower Mopar, truck, Jeep, and import platforms are stocked at Black Ops Auto Works. Shop differentials, axles, driveshafts, clutch kits, flywheels, flexplates, shifters, transmission components, ring and pinion gears, differential braces, and driveline hardware for Hellcat, Trackhawk, TRX, HEMI, LS, LT, Coyote, and turbocharged import platforms. Every drivetrain part is filterable by vehicle platform, drivetrain layout, transmission type, and power level so the correct part ships the first time. Black Ops Auto Works carries 4,765 drivetrain SKUs across differentials, axles, clutches, and transmission hardware. What This Category Covers The drivetrain transfers power from the engine to the wheels and includes the transmission, clutch, driveshafts, axles, differentials, ring and pinion gears, wheel hubs, wheel bearings, U-joints, shifters, mounts, and bushings. Upgrading these components improves power delivery, durability, and reliability under incr...

View Drivetrain Products
Yukon Gear & Axle

Yukon Gear & Axle

Yukon Gear and Axle drivetrain parts are stocked at Black Ops Auto Works for GM, Ford, Chrysler, Ram, and Jeep platforms. Shop ring and pinion sets, positraction and locker units, axle overhaul kits, differential covers, driveshafts, and manual transmission rebuild components for Dana 60/61, GM 8.2/8.5/8.6/9.5, Ford 8.8/9/10.25/10.5, and Chrysler 8.25/9.25 inch axles. Yukon parts are proven in extreme-duty use, including King of the Hammers and Moab rock crawling events, and every part here is filterable by axle size, gear ratio, and spline count. Black Ops Auto Works carries 1122 Yukon Gear and Axle SKUs across ring and pinion, differential, and axle rebuild categories. What This Brand Covers Yukon Gear and Axle builds ring and pinion sets, differential carriers, positraction and locking differentials, axle shafts, bearing and seal kits, driveshafts, and manual transmission rebuild components for domestic trucks, SUVs, and Jeeps. The brand is best known for supporting extreme-d...

View Yukon Gear & Axle Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×