National 711098 Differential Pinion Seal - Rear

Overview

National 711098 is a differential pinion seal built for rear axle sealing applications. It uses a clockwise-spiral lip design and polyacrylate construction to help maintain a secure seal in demanding driveline service.

Compatible With Toyota Highlander, Toyota Sienna, Lexus RX350, Lexus RX450h, and related rear applications listed below. This part cross-references Gates 21268 for the same application.

Key Features

• Clockwise-spiral lip design for controlled sealing performance.
• Polyacrylate material for durability in driveline sealing service.
• Metric dimensions for accurate housing and shaft matching.
• National Series 711000 seal family.
• Part number 711098 for easy identification and ordering.

Detailed Description

National 711098 is an oil seal used in differential pinion sealing applications where precise fit and stable sealing are important. The seal measures 72.000 mm housing bore, 72.200 mm outside diameter, 54.000 mm shaft size, and 9.300 mm width, with Type 35 construction. Its clockwise-spiral lip design is engineered for rotational sealing direction, and the polyacrylate material supports consistent performance in driveline environments. National 711098 is listed for rear fitment on 2010-2018 Lexus RX350, 2010-2018 Lexus RX450h, 2018 Lexus RX350L, 2018 Lexus RX450hL, 2014-2019 Toyota Highlander, 2011-2019 Toyota Sienna, and 2014-2016 Toyota Venza.

Common Issues This Seal May Address

• Differential oil seepage at the pinion area.
• Fluid loss from a worn or hardened seal lip.
• Contamination entering the differential through a damaged seal.
• Noise or driveline wear associated with low lubricant level.

Installation Notes

Verify housing bore, shaft size, and seal width before installation. Clean the sealing surface and inspect the pinion area for wear or scoring that could affect seal life. Confirm rear application and match the seal orientation to the differential design. Use the part number 711098 to confirm the correct replacement before assembly.

Quality Assurance

National has supplied sealing solutions for more than 75 years and continues to develop products for modern vehicle service needs. The 711098 seal reflects that focus on application-specific sealing design and dimensional accuracy.