QU10143 Timken Countershaft Front Bearing Cup for NV4500

QU10143 Timken® NV4500 Countershaft Front Bearing Cup is a precision ground, taper bearing cup that is an exact replacement for the original Timken® part used by New Venture Gear (NVG) for all NV4500 transmissions in 1992-2005 Dodge and 1992-2007 GM trucks. Timken® has manufacturing plants around the world so country of origin may vary, but this part is almost always USA or Canada made. Matching Bearing is QU10142.

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Dan the Gear Man® Tech Notes:
Matching Parts
Prep
Lubricants, Sealants, Threadlockers:
Special Tools
Matching Bearings, Seals, and Bearing Kits for Dodge NV4500
Applications

Tech Note 1: Matching Parts:
QU10142 Timken® Countershaft Front Bearing
QU10140 Sealing Cap, Main Case Countershaft Front Bearing Bore
QA10008 Complete Countershaft Shim Kit
QU10008B Basic Countershaft Shim Kit
NV4500GME Low Ratio Transmission Case for 1992-1995 GM
NV4500E Low Ratio Transmission Case for 1996 GM and 1994-1996 Dodge
NV4500L High Ratio Transmission Case for 1997 and Newer GM and Dodge
QU10090 Modular Countershaft
QU10078 Countershaft Assembly for 1992-1996 EXCEPT GM with 6.34 Ratio
QU10192/QU10707 1997-2007 Countershaft Assemblies
QT1802 Countershaft Front Bearing Cup Installer
Chevy & GMC Shop Manuals
Dodge & Ram Shop Manuals

Tech Note 2: Prep:
Soak QU10143 Bearing Cup in QU90020 NV4500 GL-4 75w85w Manual Transmission Oil or other approved lubricant before assembly.

Tech Note 3: Lubricants, Sealants, Threadlockers:
Early production NV4500 Transmissions used an anaerobic sealant (QU90003) to seal between the main case and input bearing retainer, top cover, and rear housing. Mid-production units used anaerobic sealant just on the input retainer and RTV for everything else. Later production transmissions used black RTV Sealant (QU90006 or QU90005) for everything. Either type of sealant works fine (except the PTO covers ALWAYS should be sealed with RTV), but I prefer RTV for all components. Regardless of which sealant you use, make sure excess sealant does not block the lube access hole at the top of input retainer pilot that fits into the transmission case! Also, the threaded holes in the main case for the four retainer bolts and 12 PTO bolts are open ended, so you must use new bolts with factory applied threadlocker or apply Threadlocker (S24200) to your existing bolts to prevent oil seepage past the bolt threads. See my TM1003 NV4500 Shop Manual or VSG1003DVD NV4500 Overhaul Video for more information.

Lubricant and Chemical List for NV4500 Transmissions:
QU90020 NV4500 Manual Transmission Oil
QU90003 Anaerobic Sealant
QU90006 3.35 oz Ultra Black RTV Sealant
QU90005 0.5 oz Ultra Black RTV Sealant
S24200 6ml Medium Strength Blue Threadlocker
S9978 1 gram Medium Strength Blue Threadlocker
S9979 1 gram High Strength Red Threadlocker
S24026 High Temperature Threadlocker for Mainshaft Nut

Tech Note 4: Special Tools:
Need Torque Specs or Rebuild procedures? Order my 116 page, full color illustrated TM1003 NV4500 Rebuild Manual.

You will need some special tools to correctly service your NV4500 Transmission. The chart below lists our current NV4500 Special Tools for popular models.

Tech Note 5: Matching Bearings, Seals, and Bearing Kits for Dodge NV4500:

Applications:
Chevy and GMC:
New Venture NV4500 5 Speed Manual Transmissions: 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007

Dodge:
New Venture NV4500 5 Speed Manual Transmissions: 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005