Dana Spicer 43085 Differential Pinion Seal - Front or Rear

Dana Spicer 43085 Differential Pinion Seal

The Dana Spicer 43085 differential pinion seal is a rubber OE-style replacement for Dana 35 and Dana 44 axle applications. It is built to match the performance and reliability expected from genuine Spicer axle components, making it a direct service part for front and rear driveline sealing needs.

For Ford Explorer, Jeep Wrangler, and other listed applications, this seal helps maintain proper axle lubrication and supports consistent differential operation. The 43085 part number is also referenced across multiple OE and aftermarket listings for the same application.

Key Features

• Genuine Spicer light vehicle axle component
• Rubber seal material for differential pinion sealing
• Inside diameter: 1.844 in.
• For Dana 35 and Dana 44 axle models
• Front and rear applications depending on vehicle fitment
• Cross-reference: Gates 43085

Detailed Description

Built under Dana Spicer’s FSGR line, this differential pinion seal is made for axle service where OE-level fit and sealing performance matter. The rubber construction is specified for the pinion area of Dana axle assemblies, including Dana 35 and Dana 44 configurations. This makes the 43085 a practical replacement when servicing leaks at the pinion seal on vehicles such as the Ford Explorer, Jeep Wrangler, Jeep Cherokee, and related applications.

This part cross-references Gates 43085 for the same application. It is also listed under OE and interchange references including DS43085, F57Z-4L616-AA, ZBP043085, and Mopar 83504946.

What It Helps Address

• Gear oil seepage at the differential pinion area
• Loss of axle lubricant from a worn pinion seal
• Contamination entering the differential through a damaged seal
• Noise or driveline concerns related to low axle fluid level
• Service replacement for aging Dana 35 and Dana 44 axle seals

Installation Notes and Tips

Verify axle model, position, and OE reference before installation. This seal is listed for front and rear applications depending on vehicle and axle configuration, including reverse-rotation and AMC 20 applications where noted. Inspect the pinion yoke and sealing surface for wear before installing the new seal, and confirm the correct inside diameter and axle specification match the vehicle.

Quality Assurance

Genuine Spicer axle products are manufactured to OE standards because they are OE parts. Dana continues to develop its axle and Spicer component lines, so replacement parts like the 43085 are built to deliver the same service-level expectations associated with original equipment.

Vehicle Fitment

• Fits 2001-2013 Ford Explorer, front; with Dana Model Super 30 Axle; replaces OE part number F57Z-4L616-AA.
• Fits 2002-2010 Mercury Mountaineer, front; with Dana Model Super 30 Axle; replaces OE part number F57Z-4L616-AA.
• Fits 1997-2007 Jeep Wrangler, rear; replaces OE part number 83504946 for Dana 35 axle differential pinion seal.
• Fits 1987-1995 Jeep Wrangler, rear; replaces OE part number 83504946 for Dana 35 axle differential pinion seal.
• Fits 2006 Hummer H1, rear; with AMC 20 axle; replaces OE part numbers 5579448 and 83504946.
• Fits 2002-2004 Hummer H1, rear; with AMC 20 axle; replaces OE part numbers 5579448 and 83504946.
• Fits 1997-2006 Jeep TJ, rear; replaces OE part number 83504946 for Dana 35 axle differential pinion seal.
• Fits 2001-2005 Ford Ranger, front; with Dana Model Super 30 Axle; replaces OE part number F57Z-4L616-AA.
• Fits 2003-2005 Lincoln Aviator, front; with Dana Model Super 30 Axle; replaces OE part number F57Z-4L616-AA.
• Fits 1993-2004 Jeep Grand Cherokee, rear; replaces OE part number 83504946 for Dana 35 axle differential pinion seal.
• Fits 2002-2003 Jeep Liberty, rear; replaces OE part number 83504946 for Dana 35 axle differential pinion seal.
• Fits 1984-2001 Jeep Cherokee, rear; replaces OE part number 83504946 for Dana 35 axle differential pinion seal.
• Fits 1997-1999 Dodge Dakota, front; with Dana 35 axle and reverse rotation; replaces OE part number 83504946.
• Fits 1998-1999 Dodge Durango, front; with Dana 35 axle and reverse rotation; replaces OE part number 83504946.
• Fits 1990-1997 Ford Aerostar, front; with Dana 35 axle and reverse rotation; replaces OE part number F57Z-4L616-AA.
• Fits 1990-1997 Ford Ranger, front; with Dana 35 axle and reverse rotation; replaces OE part number F57Z-4L616-AA.
• Fits 1994-1997 Mazda B3000, front; with Dana 35 axle and reverse rotation; replaces OE part number F57Z-4L616-AA.
• Fits 1994-1997 Mazda B4000, front; with Dana 35 axle and reverse rotation; replaces OE part number F57Z-4L616-AA.
• Fits 1997 Mercury Mountaineer, front; with Dana 35 axle and reverse rotation; replaces OE part number F57Z-4L616-AA.
• Fits 1991-1996 Ford Explorer, front; with Dana 35 axle and reverse rotation; replaces OE part number F57Z-4L616-AA.
• Fits 1991-1994 Mazda Navajo, front; with Dana 35 axle and reverse rotation; replaces OE part number F57Z-4L616-AA.
• Fits 1993 Jeep Grand Wagoneer, rear; replaces OE part number 83504946 for Dana 35 axle differential pinion seal.
• Fits 1986-1992 Jeep Comanche, rear; replaces OE part number 83504946 for Dana 35 axle differential pinion seal.
• Fits 1976-1986 Jeep CJ7, rear; replaces OE part number 83504946 for AMC 20 axle.
• Fits 1976-1986 Jeep J10, rear; replaces OE part number 83504946 for AMC 20 axle.
• Fits 1979-1986 Jeep Wagoneer, rear; replaces OE part number 83504946 for AMC 20 axle.
• Fits 1981-1985 Jeep Scrambler, rear; replaces OE part number 83504946 for AMC 20 axle.
• Fits 1976-1983 Jeep CJ5, rear; replaces OE part number 83504946 for AMC 20 axle.