National 710660 Transfer Case Output Shaft Seal - Rear

Transfer Case Output Shaft Seal for 4WD Applications

The National 710660 transfer case output shaft seal is built for rear transfer case sealing on a wide range of 4WD trucks and SUVs. It uses fluoro-elastomer sealing material to help maintain a tight seal at the output shaft and housing bore.

• Transfer case output shaft seal for rear applications
• Fluoro-elastomer material for sealing performance
• Inside diameter: 1.886 in. / 47.900 mm
• Outside diameter: 2.705 in. / 68.700 mm
• Flanged outside diameter: 3.075 in. / 78.100 mm
• Housing bore: 2.697 in. / 68.500 mm
• Width: 0.453 in. / 11.500 mm
• Overall width with side lip: 1.378 in. / 35.000 mm
• National part number 710660

Detailed Product Overview

National 710660 is an oil seal for transfer case output shaft service, engineered around the dimensions needed for specific rear transfer case applications. The seal measures 1.886 inches on the shaft side, 2.705 inches on the outside diameter, and 0.453 inches in width, with fluoro-elastomer sealing material selected for demanding driveline environments. This part number 710660 is used across many Jeep, Dodge, Ram, Chevrolet, GMC, Buick, Saab, Isuzu, Chrysler, Mitsubishi, and Oldsmobile rear transfer case applications, including Jeep Wrangler, Jeep Grand Cherokee, and Dodge Durango coverage.

National has supplied sealing solutions for more than 75 years, and this seal reflects that focus on dimensional accuracy and modern vehicle sealing requirements. This part cross-references Gates 18499 for the same application.

Vehicle Fitment

• Fits 2019 Dodge Durango, rear, with Magna 3010 Transfer Case; with Full Time 4WD; 1 Speed
• Fits 2019 Jeep Grand Cherokee, rear, with Magna 3010 Transfer Case; with Full Time 4WD; 1 Speed
• Fits 2004-2019 Jeep Wrangler, rear, with New Process 241OR Transfer Case, Part Time 4WD, 2 Speed
• Fits 2011-2018 Dodge Durango, rear, Full Time 4WD; with Magna 3010 Transfer Case; 1 Speed
• Fits 2011-2018 Jeep Grand Cherokee, rear, Full Time 4WD; with Magna 3010 Transfer Case; 1 Speed
• Fits 2011-2017 Ram 1500, rear, with New Process 243D Transfer Case; with Part Time 4WD; 48 Shaft; 2 Speed
• Fits 2006-2009 Chevrolet Trailblazer, rear, Full Time 4WD; with New Process 120C Transfer Case; 1 Speed
• Fits 2002-2009 Chevrolet Trailblazer, rear, Full Time 4WD; with New Process 226C Transfer Case; 2 Speed
• Fits 2007-2009 Chrysler Aspen, rear, Full Time 4WD; with New Process 244HD Transfer Case; 48 Shaft; 2 Speed
• Fits 2001-2009 Dodge Durango, rear, Full Time 4WD; with New Process 244HD Transfer Case; 48 Shaft; 2 Speed
• Fits 2002-2009 GMC Envoy, rear, Full Time 4WD; with New Process 226C Transfer Case; 2 Speed
• Fits 2006-2009 Mitsubishi Raider, rear, with New Process 233D Transfer Case; with Part Time 4WD; 2 Speed
• Fits 2008-2009 Saab 9-7x, rear, Full Time 4WD; with New Process 120C Transfer Case; 1 Speed
• Fits 2005-2009 Saab 9-7x, rear, Full Time 4WD; with New Process 226C Transfer Case; 2 Speed
• Fits 2003-2008 Isuzu Ascender, rear, Full Time 4WD; with New Process 226C Transfer Case; 2 Speed
• Fits 2004-2007 Buick Rainier, rear, Full Time 4WD with New Process 126C Transfer Case, 1 Speed
• Fits 2001-2007 Dodge Dakota, rear, Full Time 4WD; with New Process 244HD Transfer Case; 48 Shaft; 2 Speed
• Fits 2004-2006 Jeep TJ, rear, Fits with New Process 241OR Transfer Case, Part Time 4WD, 2 Speed
• Fits 2002-2004 Oldsmobile Bravada, rear, Full Time 4WD with New Process 126C Transfer Case, 1 Speed
• Fits 2002-2003 Jeep Liberty, rear, Full Time 4WD; with New Process 242J Transfer Case; 48 Shaft; 2 Speed

Common Repair Uses

• Stops transfer case fluid seepage at the output shaft
• Addresses wet housing or driveline contamination around the rear transfer case
• Helps restore sealing after transfer case service or shaft wear
• Supports repair of fluid loss that can lead to low transfer case lubricant levels
• Helps correct leaks on 4WD trucks and SUVs with rear transfer case output shafts

Installation Notes

Verify shaft diameter, housing bore, and transfer case type before installation. Clean the sealing surface thoroughly and inspect the output shaft for grooves, scoring, or wear that can affect seal life. Confirm the application by matching the vehicle year, make, model, position, and transfer case notes listed above, especially on Jeep Wrangler, Jeep Grand Cherokee, and Dodge Durango rear transfer case setups.

Quality Assurance

National has focused on premium sealing solutions for more than 75 years, and the 710660 seal is part of that long-running sealing product line. Its fluoro-elastomer construction and OE-style dimensional specifications support consistent transfer case sealing performance in service.