Dana Spicer 2014578-2 Differential Pinion Bearing Kit - Rear

Dana Spicer Differential Pinion Bearing Kit for Jeep Wrangler

The Dana Spicer FSGR 2014578-2 is a differential pinion bearing kit for the rear Dana 44 AdvanTEK axle used in 2018-2022 Jeep Wrangler applications. Built to OE standards, this Spicer service kit supports accurate pinion bearing replacement for rear axle service on the Jeep Wrangler platform.

Key Features

• Genuine Spicer light vehicle axle service kit
• Fits Dana 44 AdvanTEK rear axle applications
• ACBB bearing type with steel construction
• Bearing races included
• All-ratio application for 2018-up JL production
• Replaces OE part number 68401292AA
• Part number: 2014578-2

Product Details

Spicer FSGR 2014578-2 is engineered as a differential pinion bearing kit for rear axle service on the Dana 44 AdvanTEK axle. Dana Spicer manufactures genuine axle components to the same standards used for original equipment, so this kit is built for the same fit and service expectations as the OE part it replaces. It is specified for 2018-2022 Jeep Wrangler rear applications and is listed for all gear ratios within that axle configuration. The kit includes bearing races and uses steel ACBB bearings for pinion support service.

The FSGR product line covers Spicer service parts for light vehicle axle repair, helping technicians source OE-style replacement components for driveline and axle maintenance. For this application, the part number 2014578-2 is the correct reference when servicing the rear Dana 44 AdvanTEK axle on a Jeep Wrangler.

This part cross-references OE part number 68401292AA for the same application.

What This Part Helps Address

• Pinion bearing wear in the rear differential
• Noise from worn or damaged axle bearings
• Loss of pinion support during axle service
• Need to replace bearing races during differential repair
• OE replacement requirements for Dana 44 AdvanTEK rear axle service

Installation Notes

Install during rear differential service on 2018-2022 Jeep Wrangler models with the Dana 44 AdvanTEK axle. Verify axle configuration and gear ratio before assembly, and follow factory service procedures for bearing setup, preload, and pinion adjustment. This kit does not include a pinion nut, shims, seals, or marking compound.

Quality Assurance

Genuine Spicer axle parts are manufactured to OE-level standards and are used as original equipment components in Dana axle systems. That OE background supports consistent fitment and service reliability for rear axle repair on the Jeep Wrangler platform.