Drivetrain› Differentials and Rear-End Components

USA Standard (Yukon)

Spartan Locker for Dana 44 differential with 19 spline axles includes heavy-duty cross pin shaft

$760.89

SKU: U018 SL D44-19

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INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Spartan Locker for Dana 44 differential with 19 spline axles includes heavy-duty cross pin shaft

MIA's Description

The USA Standard (Yukon) SL D44-19 Spartan Locker is a "lunchbox" style differential locker designed for Dana 44 axles with 19-spline axle shafts. It provides 100% lockup traction, beneficial for off-road performance, at a relatively low cost. The design is noted for its ease of installation due to a unique spring and pin mechanism that eliminates the need for thrust washers. It includes a heavy-duty cross pin shaft.

Fitment

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Specifications

BrandUSA Standard (Yukon)
Part NumberU018 SL D44-19

Videos

Spartan Locker Installation Walkthrough

Spartan Locker Installation Walkthrough
We installed a Spartan Locker🔥Do you run a locker?#jeepwj #jeepbuild #overlanding #spartanlocker

We installed a Spartan Locker🔥Do you run a locker?#jeepwj #jeepbuild #overlanding #spartanlocker
Spartan Locker 3 year plus review

Spartan Locker 3 year plus review
Jeep TJ Spartan "lunchbox" locker Review

Jeep TJ Spartan "lunchbox" locker Review
Jeep Wrangler YJ Spartan Locker and Yukon Chromoly Axle Shaft Install

Jeep Wrangler YJ Spartan Locker and Yukon Chromoly Axle Shaft Install
Which Traction Device is Right for You?

Which Traction Device is Right for You?

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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