Help keep transfer case lubricant sealed in and road grime sealed out with the Schaeffler Transfer Case Companion Flange Seal / Transfer Case Output Shaft Seal, part number SS3989. This rear-position shaft seal is a direct-fit replacement for the listed applications, including the 1985-1995 Toyota Pickup, 1985-2016 Toyota 4Runner, 1991-1997 Toyota Previa, 1993-1998 Toyota T100, 1995-2020 Toyota Tacoma, 2000-2006 Toyota Tundra, 2001-2007 Toyota Sequoia, 2007-2014 Toyota FJ Cruiser and 2010-2019 Lexus GX460. See the Buyer's Guide tab for engine-specific details.
This part is listed under both names, companion flange seal and output shaft seal, because it seals the rear output of the transfer case. The seal body stays stationary while its lip rides against the rotating surface. That contact helps hold lubricant inside the case and keep contaminants out.
- Quality materials: Schaeffler engineers its seals with high-quality materials to meet vehicle manufacturer specifications and its own quality standards.
- OE expertise: Designed and built to stringent OEM standards.
- Durable design: Backed by a robust quality assurance process that accounts for the precise requirements of automotive systems.
- Contaminant protection: Designed to keep dirt, dust and moisture away from the components it seals.
Signs this part may need replacing: fluid seeping or dripping from the rear of the transfer case, oily residue around the companion flange, or a low transfer case fluid level. Diagnose the source of the leak first. If a worn output shaft seal is the cause, SS3989 replaces it.
Interchange: 710254 · 9005 · 4133989100
