National 25877 Transfer Case Output Shaft Bearing

National 25877 Transfer Case Output Shaft Bearing

National 25877 is a taper bearing cone built with premium-grade steel for transfer case and manual transmission applications that demand stable load support. Its crowned raceways and rollers help distribute load evenly, making it a direct-fit option for a wide range of Ford, Jeep, Chevrolet, and Pontiac applications.

• Taper bearing cone for transfer case output shaft and related drivetrain applications
• Premium-grade steel construction for durability
• Crowned raceways and rollers for even load distribution
• Cone bore: 1.3750 in. / 34.9250 mm
• Cone length: 0.9688 in. / 24.6080 mm
• Cone radius: 0.0620 in. / 1.5750 mm
• Part number: 25877

Detailed Product Overview

This National taper bearing cone is engineered for applications that require precise shaft support and consistent rotational performance. It is used across transfer case and transmission setups, including Jeep CJ5 and CJ7 Spicer 20 transfer case applications, Ford Bronco and F-100 transfer case configurations, and manual transmission countershaft bearing applications in vehicles such as the Ford Mustang, Chevrolet Camaro, and Pontiac Firebird. This part cross-references Monroe Shocks & Struts (e.g., 210319) for the same application.

National 25877 is also listed for a broad range of interchange references, making it a practical replacement choice when matching an existing taper bearing cone by dimensions and application. For buyers searching for a transfer case output shaft bearing for Jeep, Ford, or Chevrolet drivetrain service, this part number 25877 helps narrow the match quickly.

Common Repair Uses

• Restores smooth shaft support when a bearing shows wear or roughness
• Addresses drivetrain noise from a damaged taper bearing cone
• Helps correct looseness or play in transfer case and transmission assemblies
• Supports proper load distribution in high-mileage manual transmission service
• Replaces a worn bearing in Jeep CJ5, Ford Mustang, or Chevrolet Camaro applications

Installation Notes and Tips

Verify cone bore, cone length, and cone radius against the original bearing before installation. Confirm the exact transmission or transfer case type, since fitment varies by Borg-Warner T4, T5, T5WC, T5R, T5T, Tremec 3150, Spicer 20, Spicer 21, and Spicer 300 configurations. Clean and inspect the shaft, race, and surrounding components before pressing in the new bearing, and replace any damaged mating parts to maintain proper bearing contact.

Quality Assurance

National manufactures this bearing cone with premium-grade steel and crowned raceways and rollers to promote even load distribution under service conditions. The part is identified as National 25877 for accurate cataloging and application matching.

Vehicle Fitment Highlights

• Fits 2012-2021 Ford F-350 Super Duty, Front Outer
• Fits 2005-2010 Ford Mustang, N/A, with Tremec 3150 Transmission
• Fits 1998-2004 Ford Mustang, N/A, with Tremec T5WC Transmission
• Fits 1998-2002 Chevrolet Camaro, N/A, with Tremec T5WC Transmission
• Fits 1998-2002 Pontiac Firebird, N/A, with Tremec T5WC Transmission
• Fits 1998-1999 Isuzu Amigo, N/A, with Tremec T5R Transmission
• Fits 1998-1999 Isuzu Rodeo, N/A, with Tremec T5R Transmission
• Fits 1988-1997 Chevrolet Camaro, N/A, with Borg-Warner T5WC Transmission
• Fits 1985-1997 Ford Mustang, N/A, with Borg-Warner T5WC Transmission
• Fits 1988-1997 Pontiac Firebird, N/A, with Borg-Warner T5WC Transmission
• Fits 1993-1995 Chevrolet S10, N/A, with Borg-Warner T5WC Transmission
• Fits 1993-1995 GMC Sonoma, N/A, with Borg-Warner T5WC Transmission
• Fits 1991-1994 Isuzu Pickup, N/A, with Borg-Warner T5R Transmission
• Fits 1984-1992 Chevrolet S10, N/A, Manual Transmission Countershaft Bearing for Borg-Warner T5 Transmission
• Fits 1991-1992 GMC Sonoma, N/A, Manual Transmission Countershaft Bearing for Borg-Warner T5 Transmission
• Fits 1991-1992 Isuzu Rodeo, N/A, with Borg-Warner T5R Transmission
• Fits 1984-1990 Chevrolet S10 Blazer, N/A, Manual Transmission Countershaft Bearing for Borg-Warner T5 Transmission
• Fits 1984-1990 GMC S15, N/A, Manual Transmission Countershaft Bearing for Borg-Warner T5 Transmission
• Fits 1984-1990 GMC S15 Jimmy, N/A, Manual Transmission Countershaft Bearing for Borg-Warner T5 Transmission
• Fits 1985-1989 Chevrolet Astro, N/A, Manual Transmission Countershaft Bearing for Borg-Warner T5 Transmission
• Fits 1985-1989 GMC Safari, N/A, Manual Transmission Countershaft Bearing for Borg-Warner T5 Transmission
• Fits 1985-1988 Ford Thunderbird, N/A, with Borg-Warner T5WC Transmission
• Fits 1983-1987 Chevrolet Camaro, N/A, Manual Transmission Countershaft Bearing for Borg-Warner T5 Transmission
• Fits 1982-1987 Chevrolet Chevette, N/A, with Borg-Warner T5T Transmission
• Fits 1985-1987 Chevrolet S10, N/A, For Borg-Warner T4 Transmission.
• Fits 1985-1987 Chevrolet S10 Blazer, N/A, For Borg-Warner T4 Transmission.
• Fits 1985-1987 GMC S15, N/A, For Borg-Warner T4 Transmission.
• Fits 1985-1987 GMC S15 Jimmy, N/A, For Borg-Warner T4 Transmission.
• Fits 1982-1987 Pontiac Acadian, N/A, with Borg-Warner T5T Transmission; 5 Speed
• Fits 1983-1987 Pontiac Firebird, N/A, Manual Transmission Countershaft Bearing for Borg-Warner T5 Transmission
• Fits 1982-1987 Pontiac T1000, N/A, with Borg-Warner T5T Transmission
• Fits 1982-1986 Jeep CJ7, N/A, Manual Transmission Countershaft Bearing for Borg-Warner T5 Transmission
• Fits 1982-1986 Jeep CJ7, N/A, For Borg-Warner T4 Transmission.
• Fits 1980-1986 Jeep CJ7, Rear Inner, with Spicer 300 Transfer Case; with Part Time 4WD; 2 Speed
• Fits 1984-1986 Jeep Grand Wagoneer, N/A, For Borg-Warner T4 Transmission.
• Fits 1985-1986 Mercury Capri, N/A, with Borg-Warner T5WC Transmission
• Fits 1985-1986 Mercury Cougar, N/A, with Borg-Warner T5WC Transmission
• Fits 1984-1986 Nissan 300ZX, N/A, Manual Transmission Countershaft Bearing for Borg-Warner T5 Transmission
• Fits 1982-1985 Jeep Scrambler, N/A, For Borg-Warner T4 Transmission.
• Fits 1981-1985 Jeep Scrambler, Rear Inner, with Spicer 300 Transfer Case; with Part Time 4WD; 2 Speed
• Fits 1984 Chevrolet Camaro, N/A, with Borg-Warner T4E Transmission
• Fits 1983-1984 Ford Mustang, N/A, Manual Transmission Countershaft Bearing for Borg-Warner T5 Transmission
• Fits 1983-1984 Ford Thunderbird, N/A, Manual Transmission Countershaft Bearing for Borg-Warner T5 Transmission
• Fits 1983-1984 Mercury Capri, N/A, Manual Transmission Countershaft Bearing for Borg-Warner T5 Transmission
• Fits 1984 Pontiac Firebird, N/A, with Borg-Warner T4E Transmission
• Fits 1982-1983 Chevrolet Camaro, N/A, with Borg-Warner T4D Transmission
• Fits 1982-1983 Jeep Cherokee, N/A, Manual Transmission Countershaft Bearing for Borg-Warner T5 Transmission
• Fits 1982-1983 Jeep CJ5, N/A, Manual Transmission Countershaft Bearing for Borg-Warner T5 Transmission
• Fits 1982-1983 Jeep CJ5, N/A, For Borg-Warner T4 Transmission.
• Fits 1980-1983 Jeep CJ5, Rear Inner, with Spicer 300 Transfer Case; with Part Time 4WD; 2 Speed
• Fits 1981-1983 Nissan 280ZX, N/A, Manual Transmission Countershaft Bearing for Borg-Warner T5 Transmission
• Fits 1982-1983 Pontiac Firebird, N/A, with Borg-Warner T4D Transmission
• Fits 1974-1979 Jeep Cherokee, Rear Forward, Fits Spicer 20 Transfer Case with Part Time 4WD and 2 Speed configuration.
• Fits 1972-1979 Jeep CJ5, Rear Forward, Fits Spicer 20 Transfer Case with Part Time 4WD and 2 Speed configuration.
• Fits 1976-1979 Jeep CJ7, Rear Forward, Fits Spicer 20 Transfer Case with Part Time 4WD and 2 Speed configuration.
• Fits 1974-1979 Jeep J10, Rear Forward, Fits Spicer 20 Transfer Case with Part Time 4WD and 2 Speed configuration.
• Fits 1974-1979 Jeep J20, Rear Forward, Fits Spicer 20 Transfer Case with Part Time 4WD and 2 Speed configuration.
• Fits 1963-1979 Jeep Wagoneer, Rear Forward, Fits Spicer 20 Transfer Case with Part Time 4WD and 2 Speed configuration.
• Fits 1966-1976 Ford Bronco, Rear Forward, Fits Spicer 20 Transfer Case with Part Time 4WD and 2 Speed configuration.
• Fits 1966-1976 Ford F-100, Rear Forward, Full Time 4WD; with Spicer 21 Transfer Case; 1 Speed
• Fits 1972-1974 Chevrolet Blazer, Rear Forward, Fits Spicer 20 Transfer Case with Part Time 4WD and 2 Speed configuration.
• Fits 1973-1974 Chevrolet K10 Suburban, Rear Forward, Fits Spicer 20 Transfer Case with Part Time 4WD and 2 Speed configuration.
• Fits 1973-1974 Chevrolet K20 Suburban, Rear Forward, Fits Spicer 20 Transfer Case with Part Time 4WD and 2 Speed configuration.
• Fits 1973-1974 GMC Jimmy, Rear Forward, Fits Spicer 20 Transfer Case with Part Time 4WD and 2 Speed configuration.
• Fits 1967-1973 Jeep Wagoneer, Rear Inner, with Spicer 44-1 Axle
• Fits 1963-1971 Jeep CJ5, Rear Inner
• Fits 1959-1961 Jeep CJ5, Rear Inner
• Fits 1963-1966 Jeep Wagoneer, Rear Inner
• Fits 1957-1965 Chrysler 300, Rear Outer
• Fits 1957-1964 Chrysler New Yorker, Rear Outer
• Fits 1957-1964 Chrysler Newport, Rear Outer
• Fits 1957-1964 Chrysler Town & Country, Rear Outer
• Fits 1960-1964 Dodge Dart, Rear Outer
• Fits 1961-1962 Dodge Lancer, Rear Outer
• Fits 1962 Jeep CJ5, Rear Inner, 1st Design; 1.375 (in) Cone Bore; 0.968 (in) Cone Length
• Fits 1962 Jeep CJ5, Rear Inner, 2nd Design; 1.375 (in) Cone Bore; 0.968 (in) Cone Length
• Fits 1955-1956 Chrysler 300, Rear Outer, Except Heavy Duty Axle
• Fits 1951-1956 Chrysler Imperial, Rear Outer, Except Heavy Duty Axle
• Fits 1950-1956 Chrysler New Yorker, Rear Outer, Except Heavy Duty Axle
• Fits 1950-1956 Chrysler Newport, Rear Outer, Except Heavy Duty Axle
• Fits 1950-1956 Chrysler Town & Country, Rear Outer, Except Heavy Duty Axle