Eaton K-D30-186 Dana 30/186MM JL Front Differential Master Install Kit

Eaton master installation kits make upgrading your differential easier by providing all the components needed to properly install your Eaton differential or replace your ring and pinion, in one box. Premium bearings and components ensure long life and quiet operation. Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation;

• Includes all necessary components to complete installation
• Reference Eatons application guide to confirm part fitment
• Eaton only uses premium bearings
• Fits 2019-2022 JL Wrangler
• For Eaton: 912A585
• Front

The Eaton K-D30-186 Master Differential Installation Kit provides the essential components needed to install an Eaton differential or replace the ring and pinion in the front axle of select Jeep Wrangler JL applications. Designed for Dana 30 and MM186 differentials, this complete kit helps simplify installation while supporting reliable, quiet drivetrain operation.
Premium Eaton bearings and quality installation components are included to promote long service life and proper differential performance. The kit accommodates 12 cover bolts, 10 ring gear bolts, 24 axle splines, and 26 pinion splines, with reverse-rotation compatibility. It is designed for use with Eaton differential part number 912A585.
This Eaton master installation kit fits select 2018-2022 Jeep Wrangler applications, including the 2019-2022 JL Wrangler. Always consult Eaton’s application guide and verify axle, differential, spline, and gear specifications before ordering or beginning installation. Professional installation is recommended to ensure correct bearing preload, gear mesh, and differential setup.

Features:

• Complete installation kit includes the necessary components for installing an Eaton differential or replacing a ring and pinion

• Application: Front Dana 30/MM186 JL differential

• Compatibility: Reverse rotation

• Cover bolts: Supports 12 cover bolts

• Ring gear bolts: Supports 10 ring gear bolts

• Axle spline count: 24

• Pinion spline count: 26

• Bearing quality: Eaton premium bearings support long life and quiet operation

• Vehicle fitment: Select 2018-2022 Jeep Wrangler applications, including 2019-2022 JL Wrangler

• Differential compatibility: Eaton 912A585

• Fitment verification: Consult the Eaton application guide before installation

Compatible With
2018 Jeep Wrangler
2019 Jeep Wrangler
2020 Jeep Wrangler
2021 Jeep Wrangler
2022 Jeep Wrangler
2023 Jeep Wrangler