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SKF 6304-J Manual Transmission Countershaft Bearing - Center, Front, Rear or Rear Outer
| Brand | SKF 6304-J |
|---|---|
| Position | Rear |
| Fits | Ford, Mazda, Chevrolet, Geo, Mercury, Eagle, Honda, Volvo, BMW, and Nissan · 198 vehicles |
Ball bearing design. Low-friction rolling elements support smooth, efficient motion.
Transmission bearing. Built for load-carrying performance in drivetrain applications.
SKF bearing technology. Backed by over a century of engineering experience.
Cross-references 0-625-028, 0936CU and 021749 for the same application. See all 6.
SKF 6304-J Manual Transmission Countershaft Bearing
The SKF 6304-J is a manual transmission countershaft bearing built for rear-position applications across a wide range of Ford, Mazda, Chevrolet, Geo, Mercury, and Honda vehicles. With precise dimensions and SKF bearing engineering, it supports smooth shaft rotation in transmissions that depend on accurate load handling and low-friction operation.
Key Features
- Inside diameter: 0.787 in.
- Outside diameter: 2.047 in.
- Width: 0.590 in.
- Manual transmission countershaft bearing for rear, center, and rear outer positions
- SKF bearing technology backed by more than a century of bearing development
- OE-style fitment for many Ford Ranger, Mazda B-Series, and Explorer applications
Fitment and Application Details
Compatible with rear-position manual transmission applications such as Fits 1990-2011 Ford Ranger, Rear, Mazda Trans.; Fits 2001-2010 Mazda B2300, Rear; Fits 1994-2010 Mazda B4000, Rear; and Fits 1994-2008 Ford F-150, Rear, Mazda Trans. It also fits rear applications on Ford Explorer, Mazda B3000, Chevrolet Tracker, Geo Tracker, and Ford Aerostar models, plus Fits 1973-1979 Honda Civic, Rear Outer.
This part cross-references 0-625-028 and 0936CU for the same application.
SKF 6304-J is also used in select Ford Bronco, Bronco II, Thunderbird, F-250, Explorer Sport Trac, and Mazda B2500 manual transmission setups. The part number 6304-J is commonly searched alongside Ford Ranger and Mazda B-Series transmission bearing replacements.
What It Helps Address
- Transmission noise from a worn countershaft bearing
- Excessive shaft play in manual gearbox assemblies
- Rough or inconsistent transmission operation
- Wear-related bearing failure in high-mileage drivetrains
- Service needs on rear-position Mazda transmission applications
Installation Notes and Quality
Verify bearing dimensions and transmission type before installation, especially on Ford and Mazda vehicles that used Mazda or Toyo Kogyo transmissions. Confirm the application by year, make, model, and position before assembly, and inspect related transmission components for wear during service.
SKF has a long history in bearing technology, beginning with the first self-aligning ball bearing in 1907. Its products are manufactured to high quality standards for durability and safe operation in demanding drivetrain environments.
| Year | Make | Model | Body Type | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2011 | Ford | Ranger | — | 2.3L | L4 | — | Rear | Mazda Trans. |
| 2011 | Ford | Ranger | — | 4.0L | V6 | — | Rear | Mazda Trans. |
| 2010 | Ford | Ranger | — | 2.3L | L4 | — | Rear | Mazda Trans. |
| 2010 | Ford | Ranger | — | 4.0L | V6 | — | Rear | Mazda Trans. |
| 2010 | Mazda | B2300 | — | — | — | — | Rear | — |
| 2010 | Mazda | B4000 | — | — | — | — | Rear | — |
| 2009 | Ford | Explorer | — | — | — | — | Rear | Mazda Trans. |
| 2009 | Ford | Ranger | — | — | — | — | Rear | Mazda Trans. |
| 2009 | Mazda | B2300 | — | — | — | — | Rear | — |
| 2009 | Mazda | B4000 | — | — | — | — | Rear | — |
| 2008 | Ford | Explorer | — | — | — | — | Rear | Mazda Trans. |
| 2008 | Ford | F-150 | — | 4.2L | V6 | — | Rear | Mazda Trans. |
| 2008 | Ford | F-150 | — | 4.6L | V8 | — | Rear | Mazda Trans. |
| 2008 | Ford | F-150 | — | 5.4L | V8 | — | Rear | Mazda Trans. |
| 2008 | Ford | F-150 | — | — | — | — | Rear | Mazda Trans. |
| 2008 | Ford | Ranger | — | — | — | — | Rear | Mazda Trans. |
| 2008 | Mazda | B2300 | — | — | — | — | Rear | — |
| 2008 | Mazda | B3000 | — | — | — | — | Rear | — |
| 2008 | Mazda | B4000 | — | — | — | — | Rear | — |
| 2007 | Ford | Explorer | — | — | — | — | Rear | Mazda Trans. |
| 2007 | Ford | F-150 | — | 4.2L | V6 | — | Rear | Mazda Trans. |
| 2007 | Ford | F-150 | — | 4.6L | V8 | — | Rear | Mazda Trans. |
| 2007 | Ford | F-150 | — | 5.4L | V8 | — | Rear | Mazda Trans. |
| 2007 | Ford | F-150 | — | — | — | — | Rear | Mazda Trans. |
| 2007 | Ford | Ranger | — | — | — | — | Rear | Mazda Trans. |
| 2007 | Mazda | B2300 | — | — | — | — | Rear | — |
| 2007 | Mazda | B3000 | — | — | — | — | Rear | — |
| 2007 | Mazda | B4000 | — | — | — | — | Rear | — |
| 2006 | Ford | Explorer | — | — | — | — | Rear | Mazda Trans. |
| 2006 | Ford | F-150 | — | 4.2L | V6 | — | Rear | Mazda Trans. |
| 2006 | Ford | F-150 | — | 4.6L | V8 | — | Rear | Mazda Trans. |
| 2006 | Ford | F-150 | — | 5.4L | V8 | — | Rear | Mazda Trans. |
| 2006 | Ford | F-150 | — | — | — | — | Rear | Mazda Trans. |
| 2006 | Ford | Ranger | — | — | — | — | Rear | Mazda Trans. |
| 2006 | Mazda | B2300 | — | — | — | — | Rear | — |
| 2006 | Mazda | B3000 | — | — | — | — | Rear | — |
| 2006 | Mazda | B4000 | — | — | — | — | Rear | — |
| 2005 | Ford | Explorer | — | — | — | — | Rear | Mazda Trans. |
| 2005 | Ford | F-150 | — | 4.2L | V6 | — | Rear | Mazda Trans. |
| 2005 | Ford | F-150 | — | 4.6L | V8 | — | Rear | Mazda Trans. |
| 2005 | Ford | F-150 | — | 5.4L | V8 | — | Rear | Mazda Trans. |
| 2005 | Ford | F-150 | — | — | — | — | Rear | Mazda Trans. |
| 2005 | Ford | Ranger | — | — | — | — | Rear | Mazda Trans. |
| 2005 | Mazda | B2300 | — | — | — | — | Rear | — |
| 2005 | Mazda | B3000 | — | — | — | — | Rear | — |
| 2005 | Mazda | B4000 | — | — | — | — | Rear | — |
| 2004 | Ford | Explorer | — | — | — | — | Rear | Mazda Trans. |
| 2004 | Ford | F-150 | — | — | — | — | Rear | Mazda Trans. |
| 2004 | Ford | Ranger | — | — | — | — | Rear | Mazda Trans. |
| 2004 | Mazda | B2300 | — | — | — | — | Rear | — |
| 2004 | Mazda | B3000 | — | — | — | — | Rear | — |
| 2004 | Mazda | B4000 | — | — | — | — | Rear | — |
| 2003 | Chevrolet | Tracker | — | — | — | — | Rear | — |
| 2003 | Ford | Explorer | — | — | — | — | Rear | Mazda Trans. |
| 2003 | Ford | F-150 | — | — | — | — | Rear | Mazda Trans. |
| 2003 | Ford | Ranger | — | — | — | — | Rear | Mazda Trans. |
| 2003 | Mazda | B2300 | — | — | — | — | Rear | — |
| 2003 | Mazda | B3000 | — | — | — | — | Rear | — |
| 2003 | Mazda | B4000 | — | — | — | — | Rear | — |
| 2002 | Chevrolet | Tracker | — | — | — | — | Rear | — |
| 2002 | Ford | Explorer | — | — | — | — | Rear | Mazda Trans. |
| 2002 | Ford | F-150 | — | — | — | — | Rear | Mazda Trans. |
| 2002 | Ford | Ranger | — | — | — | — | Rear | Mazda Trans. |
| 2002 | Mazda | B2300 | — | — | — | — | Rear | — |
| 2002 | Mazda | B3000 | — | — | — | — | Rear | — |
| 2002 | Mazda | B4000 | — | — | — | — | Rear | — |
| 2001 | Chevrolet | Tracker | — | — | — | — | Rear | — |
| 2001 | Ford | Explorer | — | — | — | — | Rear | Mazda Trans. |
| 2001 | Ford | Explorer Sport Trac | — | — | — | — | Rear | Mazda Trans. |
| 2001 | Ford | F-150 | — | — | — | — | Rear | Mazda Trans. |
| 2001 | Ford | Ranger | — | — | — | — | Rear | Mazda Trans. |
| 2001 | Mazda | B2300 | — | — | — | — | Rear | — |
| 2001 | Mazda | B2500 | — | — | — | — | Rear | — |
| 2001 | Mazda | B3000 | — | — | — | — | Rear | — |
| 2001 | Mazda | B4000 | — | — | — | — | Rear | — |
| 2000 | Chevrolet | Tracker | — | — | — | — | Rear | — |
| 2000 | Ford | Explorer | — | — | — | — | Rear | Mazda Trans. |
| 2000 | Ford | F-150 | — | — | — | — | Rear | Mazda Trans. |
| 2000 | Ford | Ranger | — | — | — | — | Rear | Mazda Trans. |
| 2000 | Mazda | B2500 | — | — | — | — | Rear | — |
| 2000 | Mazda | B3000 | — | — | — | — | Rear | — |
| 2000 | Mazda | B4000 | — | — | — | — | Rear | — |
| 1999 | Chevrolet | Tracker | — | — | — | — | Rear | — |
| 1999 | Ford | Explorer | — | — | — | — | Rear | Mazda Trans. |
| 1999 | Ford | F-150 | — | — | — | — | Rear | Mazda Trans. |
| 1999 | Ford | Ranger | — | — | — | — | Rear | Mazda Trans. |
| 1999 | Mazda | B2500 | — | — | — | — | Rear | — |
| 1999 | Mazda | B3000 | — | — | — | — | Rear | — |
| 1999 | Mazda | B4000 | — | — | — | — | Rear | — |
| 1998 | Chevrolet | Tracker | — | — | — | — | Rear | — |
| 1998 | Ford | Explorer | — | — | — | — | Rear | Mazda Trans. |
| 1998 | Ford | F-150 | — | — | — | — | Rear | Mazda Trans. |
| 1998 | Ford | Ranger | — | — | — | — | Rear | Mazda Trans. |
| 1998 | Mazda | B2500 | — | — | — | — | Rear | — |
| 1998 | Mazda | B3000 | — | — | — | — | Rear | — |
| 1998 | Mazda | B4000 | — | — | — | — | Rear | — |
| 1997 | Ford | Aerostar | — | — | — | — | Rear | Mazda Trans. |
| 1997 | Ford | Explorer | — | — | — | — | Rear | Mazda Trans. |
| 1997 | Ford | F-150 | — | — | — | — | Rear | Mazda Trans. |
| 1997 | Ford | Ranger | — | — | — | — | Rear | Mazda Trans. |
| 1997 | Geo | Tracker | — | — | — | — | Rear | — |
| 1997 | Mazda | B2300 | — | — | — | — | Rear | — |
| 1997 | Mazda | B3000 | — | — | — | — | Rear | — |
| 1997 | Mazda | B4000 | — | — | — | — | Rear | — |
| 1996 | Ford | Bronco | — | — | — | — | Rear | Mazda Trans. |
| 1996 | Ford | Explorer | — | — | — | — | Rear | Mazda Trans. |
| 1996 | Ford | F-150 | — | — | — | — | Rear | Mazda Trans. |
| 1996 | Ford | Ranger | — | — | — | — | Rear | Mazda Trans. |
| 1996 | Geo | Tracker | — | — | — | — | Rear | — |
| 1996 | Mazda | B2300 | — | — | — | — | Rear | — |
| 1996 | Mazda | B3000 | — | — | — | — | Rear | — |
| 1996 | Mazda | B4000 | — | — | — | — | Rear | — |
| 1995 | Ford | Bronco | — | — | — | — | Rear | Mazda Trans. |
| 1995 | Ford | Explorer | — | — | — | — | Rear | Mazda Trans. |
| 1995 | Ford | F-150 | — | — | — | — | Rear | Mazda Trans. |
| 1995 | Ford | Ranger | — | — | — | — | Rear | Mazda Trans. |
| 1995 | Ford | Thunderbird | — | — | — | — | Rear | Mazda Trans. |
| 1995 | Geo | Tracker | — | — | — | — | Rear | — |
| 1995 | Mazda | B2300 | — | — | — | — | Rear | — |
| 1995 | Mazda | B3000 | — | — | — | — | Rear | — |
| 1995 | Mazda | B4000 | — | — | — | — | Rear | — |
| 1994 | Ford | Aerostar | — | — | — | — | Rear | Mazda Trans. |
| 1994 | Ford | Bronco | — | — | — | — | Rear | Mazda Trans. |
| 1994 | Ford | Explorer | — | — | — | — | Rear | Mazda Trans. |
| 1994 | Ford | F-150 | — | — | — | — | Rear | Mazda Trans. |
| 1994 | Ford | Ranger | — | — | — | — | Rear | Mazda Trans. |
| 1994 | Ford | Thunderbird | — | — | — | — | Rear | Mazda Trans. |
| 1994 | Geo | Tracker | — | — | — | — | Rear | — |
| 1994 | Mazda | B2300 | — | — | — | — | Rear | — |
| 1994 | Mazda | B3000 | — | — | — | — | Rear | — |
| 1994 | Mazda | B4000 | — | — | — | — | Rear | — |
| 1993 | Ford | Aerostar | — | — | — | — | Rear | Mazda Trans. |
| 1993 | Ford | Bronco | — | — | — | — | Rear | Mazda Trans. |
| 1993 | Ford | Explorer | — | — | — | — | Rear | Mazda Trans. |
| 1993 | Ford | Explorer | — | — | — | — | Rear | Toyo Kogyo Trans. |
| 1993 | Ford | Ranger | — | — | — | — | Rear | Mazda Trans. |
| 1993 | Ford | Ranger | — | — | — | — | Rear | Toyo Kogyo Trans. |
| 1993 | Ford | Thunderbird | — | — | — | — | Rear | Mazda Trans. |
| 1993 | Geo | Tracker | — | — | — | — | Rear | — |
| 1992 | Ford | Aerostar | — | — | — | — | Rear | Mazda Trans. |
| 1992 | Ford | Bronco | — | — | — | — | Rear | Mazda Trans. |
| 1992 | Ford | Explorer | — | — | — | — | Rear | Mazda Trans. |
| 1992 | Ford | Explorer | — | — | — | — | Rear | Toyo Kogyo Trans. |
| 1992 | Ford | F-250 | — | — | — | — | Rear | Toyo Kogyo Trans. |
| 1992 | Ford | Ranger | — | — | — | — | Rear | Mazda Trans. |
| 1992 | Ford | Ranger | — | — | — | — | Rear | Toyo Kogyo Trans. |
| 1992 | Ford | Thunderbird | — | — | — | — | Rear | Mazda Trans. |
| 1992 | Geo | Tracker | — | — | — | — | Rear | — |
| 1991 | Ford | Aerostar | — | — | — | — | Rear | Mazda Trans. |
| 1991 | Ford | Bronco | — | — | — | — | Rear | Mazda Trans. |
| 1991 | Ford | Explorer | — | — | — | — | Rear | Mazda Trans. |
| 1991 | Ford | Explorer | — | — | — | — | Rear | Toyo Kogyo Trans. |
| 1991 | Ford | F-250 | — | — | — | — | Rear | Toyo Kogyo Trans. |
| 1991 | Ford | Ranger | — | — | — | — | Rear | Mazda Trans. |
| 1991 | Ford | Ranger | — | — | — | — | Rear | Toyo Kogyo Trans. |
| 1991 | Ford | Thunderbird | — | — | — | — | Rear | Mazda Trans. |
| 1991 | Geo | Tracker | — | — | — | — | Rear | — |
| 1990 | Ford | Aerostar | — | — | — | — | Rear | Mazda Trans. |
| 1990 | Ford | Bronco | — | — | — | — | Rear | Mazda Trans. |
| 1990 | Ford | Bronco II | — | — | — | — | Rear | Mazda Trans. |
| 1990 | Ford | Bronco II | — | — | — | — | Rear | Toyo Kogyo Trans. |
| 1990 | Ford | F-250 | — | — | — | — | Rear | Toyo Kogyo Trans. |
| 1990 | Ford | Ranger | — | — | — | — | Rear | Mazda Trans. |
| 1990 | Ford | Ranger | — | — | — | — | Rear | Toyo Kogyo Trans. |
| 1990 | Ford | Thunderbird | — | — | — | — | Rear | Mazda Trans. |
| 1990 | Geo | Tracker | — | — | — | — | Rear | — |
| 1989 | Ford | Bronco | — | — | — | — | Rear | Mazda Trans. |
| 1989 | Ford | Bronco II | — | — | — | — | Rear | Toyo Kogyo Trans. |
| 1989 | Ford | Ranger | — | — | — | — | Rear | Toyo Kogyo Trans. |
| 1989 | Ford | Thunderbird | — | — | — | — | Rear | Mazda Trans. |
| 1989 | Geo | Tracker | — | — | — | — | Rear | — |
| 1989 | Mercury | Cougar | — | — | — | — | Rear | — |
| 1988 | Ford | Bronco II | — | — | — | — | Rear | Toyo Kogyo Trans. |
| 1988 | Ford | Ranger | — | — | — | — | Rear | Toyo Kogyo Trans. |
| 1984 | Ford | Ranger | — | 2.2L | L4 | DIESEL | Center | Toyo Kogyo Trans. |
| 1979 | Honda | Civic | Wagon | — | — | — | Rear Outer | — |
| 1979 | Honda | Civic | Hatchback | — | — | — | Rear Outer | — |
| 1979 | Honda | Civic | Sedan | — | — | — | Rear Outer | — |
| 1978 | Honda | Civic | Wagon | — | — | — | Rear Outer | — |
| 1978 | Honda | Civic | Hatchback | — | — | — | Rear Outer | — |
| 1978 | Honda | Civic | Sedan | — | — | — | Rear Outer | — |
| 1977 | Honda | Civic | Wagon | — | — | — | Rear Outer | — |
| 1977 | Honda | Civic | Hatchback | — | — | — | Rear Outer | — |
| 1977 | Honda | Civic | Sedan | — | — | — | Rear Outer | — |
| 1976 | Honda | Civic | Wagon | — | — | — | Rear Outer | — |
| 1976 | Honda | Civic | Hatchback | — | — | — | Rear Outer | — |
| 1976 | Honda | Civic | Sedan | — | — | — | Rear Outer | — |
| 1975 | Honda | Civic | Wagon | — | — | — | Rear Outer | — |
| 1975 | Honda | Civic | Hatchback | — | — | — | Rear Outer | — |
| 1975 | Honda | Civic | Sedan | — | — | — | Rear Outer | — |
| 1974 | Honda | Civic | Coupe | — | — | — | Rear Outer | — |
| 1974 | Honda | Civic | Hardtop | — | — | — | Rear Outer | — |
| 1974 | Honda | Civic | Hatchback | — | — | — | Rear Outer | — |
| 1974 | Honda | Civic | Sedan | — | — | — | Rear Outer | — |
| 1973 | Honda | Civic | Coupe | — | — | — | Rear Outer | — |
| 1973 | Honda | Civic | Hardtop | — | — | — | Rear Outer | — |
| 1973 | Honda | Civic | Hatchback | — | — | — | Rear Outer | — |
| 1973 | Honda | Civic | Sedan | — | — | — | Rear Outer | — |
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