QU50539 Timken Pinion Bearing Cup is used as for the inner pinion bearing cup on many Dana-Spicer Model 27, 30, 44, and 50 axles plus as an outer bearing cup for AAM/GM 9.25″ and 9.5″ axles. This is a First Class, original equipment quality bearing that meets or exceeds all vehicle manufacturer specifications making it the top choice for heavy-duty applications like yours. Country of origin may vary as Timken produces Bearings in plants located around the globe, however QU50539 is almost always made in either Canada or the United States.

Need More Info? Use the handy Links below to access over 40 years of Dan’s product and vehicle specific Tech Notes to easily get the information you need for your vehicle’s repair, maintenance, or upgrade project!

Dan the Gear Man Tech Notes:
Cup & Cone
Bearing Cone
Installer Plate
Tech Help
Matching Parts for GM 9.5″ Rear Axle
Matching Parts for Dodge 2003-2013 AAM 925 14 Bolt Front Axle
Matching Parts for Dodge 2013-up AAM 925 12 Bolt Front Axle
Matching Parts for Ford 1992-1996 Dana 44 IFS Front Axle
Matching Parts for Ford 1980-1997 Dana 50 IFS Front Axle
Matching Parts for Ford 1999-2004 Dana 50 Front Axle
Other Matching Parts
Applications

Tech Note 1: Cup & Cone
Always replace the Cup and Cone at the same time.

Tech Note 2: Bearing Cone
The matching Bearing Cone is QU50540.

Tech Note 3: Installer Plate
Need the Installer Plate to seat this bearing cup in your housing? Order QT1812 Bearing Cup Installer separately.

Tech Note 4: Tech Help
Rebearing service procedures are covered in my TM4400 Pinion and Differential Bearing Service on Dana-Spicer Monobeam Axles.

Tech Note 5: Matching Parts for GM 9.5″ Rear Axle
Saved for Future Use

Tech Note 6: Matching Parts for Dodge 2003-2013 AAM 925 14 Bolt Front Axle
Saved for Future Use

Tech Note 7: Matching Parts for Dodge 2013-up AAM 925 12 Bolt Front Axle
Interactive Exploded View XV1018 2013-up Dodge Ram 2500/3500 AAM 925 CAD Front Axle
QU11105 Differential Cap Bolt
QU10945 Inner Oil Seal
QU10862 Crush Sleeve
QU50540 Outer Pinion Bearing
QU12017 Inner Pinion Bearing Cup
QU50548 Inner Pinion Bearing
QU50546 Differential Bearing Cup
QU50547 Differential Bearing
QU10865 Pinion Seal
A560740 Pinion Flange with Wear Sleeve
QU10864 Pinion Washer
QU10863 Pinion Nut
A560942/A560944/A560946/A560947 Ring and Pinion Sets
QU50689 Basic Pinion Depth Shim Kit
QU11308 Differential Bearing Adjuster Nut
A560680 Loaded Open Differential Assembly
A560971 Electric Locking TracRite Front Diff for Ram Power Wagon
A560630 Ring Gear Bolt
QU11059 Pinion Shaft Lock Screw

Tech Note 8: Matching Parts for Ford 1992-1996 Dana 44 IFS Front Axle
Saved for Future Use

Tech Note 9: Matching Parts for Ford 1980-1997 Dana 50 IFS Front Axle
Interactive Exploded View XV1010DT 1995, 1996, 1997 Ford F250 Dana 50IFS Axle
QU50540 Pinion Bearing
QU50533 Outer Pinion Bearing Cup
QU50534 Outer Pinion Bearing
TM4400 Pinion and Differential Bearing Service Manual
QT1812 Bearing Cup Installer
Ford Shop Manuals

Tech Note 10: Matching Parts for Ford 1999-2004 Dana 50 Front Axle
Saved for Future Use

Tech Note 11: Other Matching Parts
Matching Parts for QU50539 Pinion Bearing Cup:
QU50540 Pinion Bearing
QU50537 Diff Side Bearing Cup
QU50538 Large ID Diff Side Bearing
QU50683 Small ID Diff Side Bearing
QU50533 Outer Pinion Bearing Cup
QU50534 Outer Pinion Bearing
QU50535 Inner Pinion Bearing Cup
QU50536 Inner Pinion Bearing
TM4400 Pinion and Differential Bearing Service Manual
QT1812 Bearing Cup Installer
Chevy & GMC Shop Manuals
Dodge & Ram Shop Manuals
Ford Shop Manuals
Jeep Shop Manuals

Applications:

Chevy/GMC
K1500, K2500 AAM/GM 9.25IFS Front Axle: 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
1500, 2500 14 Bolt 9.5″ Ring Gear Rear Axle: 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
1500, 2500 14 Bolt 9.5″ Ring Gear: 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007

Dodge:
NP435 4 Speed Transmission Input Bearing Cup: 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991
NP445 4 Speed Transmission Input Bearing Cup: 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981
Ram 1500 Model 44 Front Axle: 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
Ram 2500 Model 44 Front Axle: 1994, 1995, 1996, 1997
Ram 2500/Ram 3500 Front Axle with AAM 925 Front Axle: 2003-up

Ford:
Bronco, F-150 Model 44IFS Front Axle: 1992.5, 1993, 1994, 1995, 1996
F-250 Model 50IFS Axle: 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
F-350 Model 50IFS Axle: 1980, 1981, 1982, 1983, 1984
Super Duty F-250, F-350 with Model 50 Front Axle: 1999, 2000, 2001, 2002, 2003, 2004

Jeep:
All CJ, TJ, WJ, XJ, YJ, ZJ with Model 30 Front Axles: 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018