National 1987 Manual Transmission Output Shaft Seal

Manual Transmission Output Shaft Seal for Toyota and Isuzu

National 1987 is a metric manual transmission output shaft seal built with polyacrylate sealing material for dependable fluid control at the transmission housing. It is sized for a 35.000 mm shaft and a 49.000 mm housing bore, making it a direct-fit option for a wide range of Toyota, Scion, Lexus, Pontiac, Chevrolet, GMC, and Isuzu manual transmission applications.

Use National 1987 when you need a manual transmission output shaft seal for Toyota Corolla, Toyota Camry, or Toyota Prius applications, as well as select Isuzu and Chevrolet truck fitments. This seal is also cross-referenced to Timken 1987S for the same application.

Key Features

• Manual transmission output shaft seal for transmission sealing service
• Polyacrylate sealing material for fluid resistance and durability
• Metric dimensions: 35.000 mm shaft, 49.000 mm housing bore
• Outside diameter of 49.200 mm and width of 6.000 mm
• National Series 1000, Type 33 oil seal design
• OE-style fitment coverage across Toyota, Scion, Lexus, Pontiac, Chevrolet, GMC, and Isuzu vehicles

Detailed Description

National 1987 is an oil seal engineered for manual transmission output shaft sealing where precise dimensions matter. The seal measures 1.378 in. inside diameter, 1.937 in. outside diameter, and 0.236 in. thickness, with metric equivalents of 35.000 mm, 49.200 mm, and 6.000 mm. Its polyacrylate material is selected for sealing performance in transmission environments, and the 49.000 mm housing bore specification helps support proper seating during service.

With coverage for many Toyota and Scion platforms, including Toyota Prius, Yaris, Corolla, Camry, RAV4, Highlander, and Scion xB, xA, and tC, National 1987 is also listed for select Lexus HS250h and older Isuzu-based manual transmission applications. It is a practical choice for technicians servicing Toyota Corolla manual transmission output shaft seal repairs, Toyota Camry transmission seal replacement, or Isuzu Pickup manual transmission seal service.

Common Problems This Seal Can Address

• Transmission fluid leakage at the output shaft area
• Wet or contaminated bellhousing and underbody components
• Seal wear from age, heat, and mileage
• Fluid loss that can lead to low transmission fluid levels
• Service replacement during manual transmission repair or rebuild

Installation Notes and Tips

Verify shaft diameter, housing bore, and seal width before installation to confirm the correct manual transmission output shaft seal. Clean the bore and shaft surface thoroughly, inspect for grooves or damage, and install the seal squarely to avoid distortion. Confirm the transmission application and notes carefully, especially on vehicles with Isuzu MSG-4K, MSG-4ET, MSG-5K, MSG-5ET, or MSE4A transmission references.

Compatible With: Fits 2012-2020 Toyota Prius C; Fits 2006-2019 Toyota Yaris; Fits 2017-2018 Toyota Yaris iA; Fits 2016 Scion iA; Fits 2008-2015 Scion xB; Fits 2004-2006 Scion xB; Fits 2009-2013 Toyota Matrix; Fits 2010-2012 Lexus HS250h; Fits 2002-2011 Toyota Camry; Fits 2009-2010 Pontiac Vibe; Fits 2005-2010 Scion tC; Fits 2009-2010 Toyota Corolla; Fits 1983-1997 Toyota Corolla; Fits 2001-2009 Toyota Prius; Fits 2004-2008 Toyota RAV4; Fits 2002-2008 Toyota Solara; Fits 2001-2007 Toyota Highlander; Fits 2004-2006 Scion xA; Fits 2000-2005 Toyota Echo; Fits 1992-1999 Toyota Paseo; Fits 1980-1999 Toyota Tercel; Fits 1989-1997 Geo Prizm; Fits 1988-1997 Toyota Celica; Fits 1991-1995 Toyota MR2; Fits 1985-1989 Toyota MR2; Fits 1989-1992 Toyota Cressida; Fits 1986-1992 Toyota Supra; Fits 1983-1989 Isuzu Impulse, with Isuzu MSG-5K Transmission; Fits 1985-1988 Chevrolet Nova; Fits 1982-1987 Chevrolet S10, with Isuzu MSG-4K Transmission; Fits 1982-1987 GMC S15, with Isuzu MSG-4K Transmission; Fits 1981-1987 Isuzu Pickup, with Isuzu MSG-4ET Transmission; Fits 1982-1987 Isuzu Pickup, with Isuzu MSG-5ET Transmission; Fits 1987 Isuzu Pickup; Fits 1985-1987 Isuzu Trooper, with Isuzu MSG-5ET Transmission; Fits 1981-1986 Chevrolet Chevette, with Isuzu MSG-5K Transmission; Fits 1981-1986 Isuzu Pickup, with Isuzu MSG-4K Transmission; Fits 1981-1986 Pontiac Acadian, with Isuzu MSG-5K Transmission; Fits 1982-1986 Pontiac T1000, with Isuzu MSG-5K Transmission; Fits 1983-1985 Chevrolet S10, with Isuzu MSG-4ET Transmission; Fits 1983-1985 GMC S15, with Isuzu MSG-4ET Transmission; Fits 1981-1985 Isuzu I-Mark; Fits 1983-1984 Chevrolet S10 Blazer, with Isuzu MSG-4ET Transmission; Fits 1983-1984 Chevrolet S10 Blazer, with Isuzu MSG-4K Transmission; Fits 1983-1984 GMC S15 Jimmy, with Isuzu MSG-4K Transmission; Fits 1983-1984 GMC S15 Jimmy, with Isuzu MSG-4ET Transmission; Fits 1984 Isuzu Trooper, with Isuzu MSG-4ET Transmission; Fits 1976-1982 Chevrolet LUV; Fits 1979-1981 Chevrolet LUV, with Isuzu MSG-4ET Transmission; Fits 1979-1980 Chevrolet LUV, with Isuzu MSG-5ET Transmission; Fits 1975 Chevrolet LUV, with Isuzu MSE4A Transmission.

Quality Assurance

National has supplied premium sealing solutions for more than 75 years and continues to develop sealing products for modern vehicle service needs. National 1987 reflects that focus with a precise metric design and application coverage for many Toyota, Scion, Lexus, Pontiac, Chevrolet, GMC, and Isuzu manual transmission platforms.