National 710929 Automatic Transmission Torque Converter Seal

Overview of National 710929 Automatic Transmission Torque Converter Seal

The National 710929 automatic transmission torque converter seal is engineered for reliable sealing performance in various vehicle models including BMW, Toyota, Lexus, and Volvo. Designed with precision dimensions and durable ethylene-acrylic material, this oil seal helps maintain transmission fluid integrity and prevents leaks.

• Inside diameter: 1.693 inches (43.000 mm)
• Outside diameter: 2.449 inches (62.200 mm)
• Thickness: 0.217 inches (5.500 mm)
• Helix type: Clockwise-spiral lip design for enhanced sealing
• Material: Ethylene-acrylic for durability and resistance
• Housing bore: 2.441 inches (62.000 mm)
• Compatible with multiple makes and models including Toyota Camry, Lexus RX350, BMW X1, and Volvo S60

Technical Details and Design Features

The National 710929 seal features a 32-type design with a clockwise-spiral lip that ensures effective sealing against transmission fluid leaks. Its ethylene-acrylic composition offers resistance to heat and wear, making it suitable for demanding automatic transmission environments. The precise inside diameter of 1.693 inches and outside diameter of 2.449 inches allow for a secure fit within the housing bore of 2.441 inches, ensuring optimal sealing performance. The thickness of 0.217 inches contributes to the seal’s durability and ability to maintain pressure within the torque converter assembly.

Compatible Vehicles and Applications

This automatic transmission torque converter seal is compatible with a range of vehicles, including but not limited to:

• Toyota Camry, Avalon, Highlander, RAV4, Prius series (Prius, Prius AWD-e, Prius C, Prius Prime), and Sienna
• Lexus ES300h, ES350, GX460, NX300h, RX350, RX450h, RX450hL, and Venza
• BMW X1, X2, Mini Cooper Clubman, and Cooper Countryman
• Volvo S60, S60 Cross Country, S80, S90, V60, V60 Cross Country, V90, V90 Cross Country, XC40, XC60, XC70, XC90
• Buick LaCrosse, Regal Sportback, Regal TourX
• Cadillac XT5
• Scion tC

Common Issues Addressed by the National 710929 Seal

• Prevents automatic transmission fluid leaks around the torque converter
• Reduces risk of transmission overheating due to fluid loss
• Maintains proper hydraulic pressure within the transmission system
• Minimizes contamination ingress into the transmission assembly
• Helps avoid premature transmission wear and costly repairs

Installation Notes and Tips

• Ensure the housing bore and shaft surfaces are clean and free of debris before installation
• Use appropriate tools to avoid damaging the seal during installation
• Verify the seal orientation matches the clockwise-spiral lip design for correct sealing
• Check for proper fitment with the specific vehicle model and transmission type
• Consult vehicle service manual for torque specifications and installation procedures

Quality Assurance and Warranty

National transmission seals are manufactured to meet industry standards for durability and performance. The 710929 seal is made from high-quality ethylene-acrylic material designed to withstand the operating conditions of automatic transmissions. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in product reliability.