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National 710889 Automatic Transmission Torque Converter SealOE Quality 60-Day Returns
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Part #: 710889

National 710889 Automatic Transmission Torque Converter Seal

⚙️ 109 vehicles fit this part
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🚗Fitment: Buick, Chevrolet, GMC, Pontiac, and Saturn, Cascada, Encore, Envision, LaCrosse, Cruze, Equinox, Impala, Sonic, Trax, Acadia, Terrain, Malibu, Regal, Verano, Cruze Limited, Malibu Limited, Captiva Sport, Orlando, Allure, G6, and Aura
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Overview of National 710889 Automatic Transmission Torque Converter Seal

The National 710889 automatic transmission torque converter seal is engineered to provide reliable sealing performance for select GM vehicles. Designed with precision dimensions and durable fluoro-elastomer material, this oil seal helps maintain transmission fluid integrity in Buick, Chevrolet, GMC, Pontiac, and Saturn models.

  • Inside diameter: 1.575 inches (40.000 mm)
  • Outside diameter: 2.567 inches (65.200 mm)
  • Flanged outside diameter: 2.677 inches (68.000 mm)
  • Thickness: 0.256 inches (6.500 mm)
  • Helix type: Clockwise-spiral lip design
  • Material: Fluoro-elastomer for enhanced chemical and heat resistance
  • Housing bore diameter: 2.559 inches (65.000 mm)

Detailed Product Description

The National 710889 torque converter seal is part of the 710800 series, designed specifically for automatic transmissions requiring a 74-type seal. Its fluoro-elastomer construction offers superior resistance to transmission fluids, heat, and wear, ensuring a long service life. The clockwise-spiral lip design improves sealing efficiency by maintaining consistent contact with the shaft, reducing fluid leakage. With precise inside and outside diameters, this seal fits securely within the housing bore and around the shaft, providing a tight barrier against contaminants and fluid loss.

Compatible Vehicles and Applications

This torque converter seal is compatible with a range of GM vehicles, including Buick models like LaCrosse and Regal, Chevrolet models such as Cruze, Malibu, and Equinox, GMC Terrain, Pontiac G6, and Saturn Aura and Vue. It is designed to meet the specific sealing requirements of these vehicles’ automatic transmissions, ensuring proper fit and function.

Common Issues Addressed by the 710889 Seal

  • Prevents automatic transmission fluid leaks around the torque converter
  • Reduces contamination ingress that can damage transmission components
  • Maintains hydraulic pressure for smooth transmission operation
  • Minimizes premature wear of transmission seals and components
  • Helps avoid costly transmission repairs due to fluid loss

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 optimal sealing
  • Check for proper fit within the 2.559-inch housing bore and around the 1.575-inch shaft
  • Consult vehicle-specific service manuals for torque converter removal and installation procedures

Quality Assurance and Warranty

National manufactures the 710889 torque converter seal to meet industry standards for durability and performance. The fluoro-elastomer material and precision engineering contribute to consistent sealing under demanding conditions. While specific warranty details may vary, National products typically come with a limited warranty against defects in material and workmanship, providing confidence in product reliability.

BrandNational
Part Number710889
Flanged Outside Diameter (Inch)2.677
Flanged Outside Diameter (MM)68.000
Helix TypeClockwise-Spiral Lip Design
Housing Bore (Inch)2.559
Housing Bore (MM)65.000
Inside Diameter1.575
Inside Diameter40.000
MaterialFluoro-Elastomer
Outside Diameter2.567
Outside Diameter65.200
Outside Diameter (Inch)2.567
Outside Diameter (mm)65.200
Part DescriptionOil Seal
Series710800
Shaft (Inch)1.575
Shaft (MM)40.000
Thickness0.256
Thickness6.500
Type74
Unit of DimensionMetric
Width (Inch)0.256
Width (mm)6.500

This part fits 109 vehicles. Search below:

YearMakeModelTransmissionPositionNotes
2019BuickCascadaAutomaticN/A
2019BuickEncoreAutomaticN/A
2019BuickEnvisionAutomaticN/A
2019BuickLaCrosseAutomaticN/A
2019ChevroletCruzeAutomaticN/A
2019ChevroletEquinoxAutomaticN/A
2019ChevroletImpalaAutomaticN/A
2019ChevroletSonicAutomaticN/A
2019ChevroletTraxAutomaticN/A
2019GMCAcadiaAutomaticN/A
2019GMCTerrainAutomaticN/A
2018BuickCascadaAutomaticN/A
2018BuickEncoreAutomaticN/A
2018BuickEnvisionAutomaticN/A
2018BuickLaCrosseAutomaticN/A
2018ChevroletCruzeAutomaticN/A
2018ChevroletEquinoxAutomaticN/A
2018ChevroletImpalaAutomaticN/A
2018ChevroletMalibuAutomaticN/A
2018ChevroletSonicAutomaticN/A
2018ChevroletTraxAutomaticN/A
2018GMCAcadiaAutomaticN/A
2018GMCTerrainAutomaticN/A
2017BuickCascadaAutomaticN/A
2017BuickEncoreAutomaticN/A
2017BuickEnvisionAutomaticN/A
2017BuickRegalAutomaticN/A
2017BuickVeranoAutomaticN/A
2017ChevroletCruzeAutomaticN/A
2017ChevroletEquinoxAutomaticN/A
2017ChevroletImpalaAutomaticN/A
2017ChevroletMalibuAutomaticN/A
2017ChevroletSonicAutomaticN/A
2017ChevroletTraxAutomaticN/A
2017GMCAcadiaAutomaticN/A
2017GMCTerrainAutomaticN/A
2016BuickCascadaAutomaticN/A
2016BuickEncoreAutomaticN/A
2016BuickEnvisionAutomaticN/A
2016BuickLaCrosseAutomaticN/A
2016BuickRegalAutomaticN/A
2016BuickVeranoAutomaticN/A
2016ChevroletCruzeAutomaticN/A
2016ChevroletCruze LimitedAutomaticN/A
2016ChevroletEquinoxAutomaticN/A
2016ChevroletImpalaAutomaticN/A
2016ChevroletMalibuAutomaticN/A
2016ChevroletMalibu LimitedAutomaticN/A
2016ChevroletSonicAutomaticN/A
2016ChevroletTraxAutomaticN/A
2016GMCTerrainAutomaticN/A
2015BuickEncoreAutomaticN/A
2015BuickLaCrosseAutomaticN/A
2015BuickRegalAutomaticN/A
2015BuickVeranoAutomaticN/A
2015ChevroletCaptiva SportAutomaticN/A
2015ChevroletCruzeAutomaticN/A
2015ChevroletEquinoxAutomaticN/A
2015ChevroletImpalaAutomaticN/A
2015ChevroletMalibuAutomaticN/A
2015ChevroletSonicAutomaticN/A
2015ChevroletTraxAutomaticN/A
2015GMCTerrainAutomaticN/A
2014BuickEncoreAutomaticN/A
2014BuickLaCrosseAutomaticN/A
2014BuickVeranoAutomaticN/A
2014ChevroletCaptiva SportAutomaticN/A
2014ChevroletCruzeAutomaticN/A
2014ChevroletEquinoxAutomaticN/A
2014ChevroletImpalaAutomaticN/A
2014ChevroletMalibuAutomaticN/A
2014ChevroletSonicAutomaticN/A
2014ChevroletTraxAutomaticN/A
2014GMCTerrainAutomaticN/A
2013BuickEncoreAutomaticN/A
2013BuickLaCrosseAutomaticN/A
2013BuickRegalAutomaticN/A
2013BuickVeranoAutomaticN/A
2013ChevroletCaptiva SportAutomaticN/A
2013ChevroletCruzeAutomaticN/A
2013ChevroletEquinoxAutomaticN/A
2013ChevroletMalibuAutomaticN/A
2013ChevroletSonicAutomaticN/A
2013ChevroletTraxAutomaticN/A
2013GMCTerrainAutomaticN/A
2012BuickLaCrosseAutomaticN/A
2012BuickRegalAutomaticN/A
2012BuickVeranoAutomaticN/A
2012ChevroletCaptiva SportAutomaticN/A
2012ChevroletCruzeAutomaticN/A
2012ChevroletEquinoxAutomaticN/A
2012ChevroletMalibuAutomaticN/A
2012ChevroletSonicAutomaticN/A
2012GMCTerrainAutomaticN/A
2011BuickLaCrosseAutomaticN/A
2011BuickRegalAutomaticN/A
2011ChevroletCruzeAutomaticN/A
2011ChevroletEquinoxAutomaticN/A
2011ChevroletMalibuAutomaticN/A
2011GMCTerrainAutomaticN/A
2010BuickAllureAutomaticN/A
2010ChevroletEquinoxAutomaticN/A
2010ChevroletMalibuAutomaticN/A
2010GMCTerrainAutomaticN/A
2010PontiacG6AutomaticN/A
2009ChevroletMalibuAutomaticN/A
2009PontiacG6AutomaticN/A
2009SaturnAuraAutomaticN/A
2008ChevroletMalibuAutomaticN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

242306912425695324266675707004B37183

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.