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Timken NP673386 Differential Pinion Race - Rear Inner or Rear Outer
| Brand | Timken NP673386 |
|---|---|
| Position | Rear Inner |
| Fits | Ram and Ford · 65 vehicles |
Tapered roller bearing. Engineered for higher speeds, heavier loads, and longer life.
Radial and axial loads. Built to manage both for dependable performance.
Replace cone and cup. Maximize reliability and service life.
Cross-references Schaeffler NP673386 for the same application. See all 1.
Timken NP673386 Differential Pinion Race
The Timken NP673386 differential pinion race is a tapered roller bearing cup built for rear axle service in heavy-duty Ford and Ram applications. It is engineered for high load capacity, stable operation, and long service life in driveline and axle assemblies.
Key Features
- Timken tapered roller bearing component for differential pinion support
- Handles both radial and axial loads in rear axle service
- Built for heavy-duty driveline use in Ford F-350 Super Duty and Ram 2500 applications
- Use with the matching cone/inner bearing component for proper service
- Cross-references Schaeffler NP673386 for the same application
Detailed Description
Timken NP673386 is a differential pinion race used in rear inner and rear outer axle positions, depending on the vehicle application. It is a fit for 1999-2020 Ford F-350 Super Duty, 2004-2008 Ford E-350 Super Duty, 1999-2004 Ford E-350 Econoline Club Wagon, 2000-2004 Ford F-350 Super Duty, 2000 Ford F-250 Super Duty, and select Ram 1500 and Ram 2500 rear inner applications. This part number is also searched as NP673386 for axle bearing service on Ford F-350 Super Duty and Ram 2500 trucks.
As a Timken tapered roller bearing component, this race is made for compact packaging while carrying demanding loads in differential assemblies. It is a direct service part for rear axle bearing repair where the pinion race shows wear, scoring, or heat damage.
What It Is Used For
- Replacing a worn or damaged differential pinion race
- Correcting axle noise caused by bearing wear
- Restoring proper pinion bearing support in rear axle service
- Addressing rough operation from pitting, spalling, or overheating
- Supporting differential rebuilds on Ford and Ram heavy-duty trucks
Installation Notes and Tips
Replace the inner cone and outer cup together to maintain bearing geometry and service life. Confirm axle type, ring gear size, and rear inner or rear outer position before installation. Clean the bearing bore and inspect the pinion shaft and related components for wear before assembly.
Quality Assurance
Timken is a recognized global leader in tapered roller bearings, with engineering focused on durability, load handling, and long service life in driveline applications. The NP673386 follows that bearing design approach for demanding axle service.
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2020 | Ram | 2500 | — | Rear Inner | — |
| 2019 | Ram | 2500 | — | Rear Inner | — |
| 2018 | Ram | 2500 | — | Rear Inner | — |
| 2017 | Ram | 2500 | — | Rear Inner | — |
| 2016 | Ford | F-350 Super Duty | — | Rear Inner | Compatible with vehicles equipped with dual rear wheels. |
| 2016 | Ram | 2500 | — | Rear Inner | — |
| 2015 | Ford | F-350 Super Duty | — | Rear Inner | Compatible with vehicles equipped with dual rear wheels. |
| 2015 | Ram | 2500 | — | Rear Inner | — |
| 2014 | Ford | F-350 Super Duty | — | Rear Inner | Compatible with vehicles equipped with dual rear wheels. |
| 2014 | Ram | 2500 | — | Rear Inner | — |
| 2013 | Ford | F-350 Super Duty | — | Rear Inner | Compatible with vehicles equipped with dual rear wheels. |
| 2013 | Ram | 2500 | — | Rear Inner | 11.5 in. Ring Gear |
| 2012 | Ford | F-350 Super Duty | — | Rear Inner | Compatible with vehicles equipped with dual rear wheels. |
| 2012 | Ram | 1500 | Tradesman HD | Rear Inner | 11.5 in Ring Gear |
| 2012 | Ram | 2500 | — | Rear Inner | 11.5 in. Ring Gear |
| 2011 | Ford | F-350 Super Duty | — | Rear Inner | Compatible with vehicles equipped with dual rear wheels. |
| 2010 | Ford | F-350 Super Duty | — | Rear Inner | Compatible with vehicles equipped with dual rear wheels. |
| 2010 | Ford | F-350 Super Duty | — | Rear Inner | Dana/Spicer 80 Axle |
| 2009 | Ford | F-350 Super Duty | — | Rear Inner | Compatible with vehicles equipped with dual rear wheels. |
| 2009 | Ford | F-350 Super Duty | — | Rear Inner | Dana/Spicer 80 Axle |
| 2008 | Ford | E-350 Super Duty | — | Rear Inner | Dana/Spicer 80 Axle |
| 2008 | Ford | F-350 Super Duty | — | Rear Inner | Dana/Spicer 80 Axle |
| 2008 | Ford | F-350 Super Duty | — | Rear Outer | Dual Rear Wheels - Wide Frame |
| 2007 | Ford | E-350 Super Duty | — | Rear Inner | Dana/Spicer 80 Axle |
| 2007 | Ford | F-350 Super Duty | — | Rear Inner | Dana/Spicer 80 Axle |
| 2007 | Ford | F-350 Super Duty | — | Rear Outer | Dual Rear Wheels - Wide Frame |
| 2006 | Ford | E-350 Super Duty | — | Rear Inner | Dana/Spicer 80 Axle |
| 2006 | Ford | F-350 Super Duty | — | Rear Inner | Dana/Spicer 80 Axle |
| 2006 | Ford | F-350 Super Duty | — | Rear Outer | Dual Rear Wheels - Wide Frame |
| 2006 | Ford | F-350 Super Duty | — | Rear Inner | 11.25 in. Ring Gear |
| 2005 | Ford | E-350 Club Wagon | — | Rear Inner | Dana/Spicer 80 Axle |
| 2005 | Ford | E-350 Super Duty | — | Rear Inner | Dana/Spicer 80 Axle |
| 2005 | Ford | F-350 Super Duty | — | Rear Inner | Dana/Spicer 80 Axle |
| 2005 | Ford | F-350 Super Duty | — | Rear Outer | Dual Rear Wheels - Wide Frame |
| 2004 | Ford | E-350 Club Wagon | — | Rear Inner | Dana/Spicer 80 Axle |
| 2004 | Ford | E-350 Super Duty | — | Rear Inner | Dana/Spicer 80 Axle |
| 2004 | Ford | F-350 Super Duty | — | Rear Inner | Dana/Spicer 80 Axle |
| 2004 | Ford | F-350 Super Duty | — | Rear Inner | Dana Axle |
| 2003 | Ford | E-350 Club Wagon | — | Rear Inner | Dana/Spicer 80 Axle |
| 2003 | Ford | E-350 Club Wagon | — | Rear Inner | 11.25 in. Ring Gear |
| 2003 | Ford | F-350 Super Duty | — | Rear Inner | Dana/Spicer 80 Axle |
| 2003 | Ford | F-350 Super Duty | — | Rear Inner | 11.25 in. Ring Gear |
| 2003 | Ford | F-350 Super Duty | — | Rear Inner | Dana Axle |
| 2002 | Ford | E-250 Econoline | — | Rear Inner | Dana Axle |
| 2002 | Ford | E-350 Econoline Club Wagon | — | Rear Inner | Dana/Spicer 80 Axle |
| 2002 | Ford | E-350 Econoline Club Wagon | — | Rear Inner | 11.25 in. Ring Gear |
| 2002 | Ford | F-350 Super Duty | — | Rear Inner | Dana/Spicer 80 Axle |
| 2002 | Ford | F-350 Super Duty | — | Rear Inner | 11.25 in. Ring Gear |
| 2002 | Ford | F-350 Super Duty | — | Rear Inner | Dana Axle |
| 2001 | Ford | E-250 Econoline | — | Rear Inner | Dana Axle |
| 2001 | Ford | E-350 Econoline Club Wagon | — | Rear Inner | Dana/Spicer 80 Axle |
| 2001 | Ford | F-350 Super Duty | — | Rear Inner | Dana/Spicer 80 Axle |
| 2001 | Ford | F-350 Super Duty | — | Rear Inner | 11.25 in. Ring Gear |
| 2001 | Ford | F-350 Super Duty | — | Rear Inner | Dana Axle |
| 2000 | Ford | E-250 Econoline | — | Rear Inner | Dana Axle |
| 2000 | Ford | E-350 Econoline Club Wagon | — | Rear Inner | Dana/Spicer 80 Axle |
| 2000 | Ford | E-350 Econoline Club Wagon | — | Rear Inner | 11.25 in. Ring Gear |
| 2000 | Ford | F-250 Super Duty | — | Rear Inner | Dana Axle |
| 2000 | Ford | F-350 Super Duty | — | Rear Inner | Dana/Spicer 80 Axle |
| 2000 | Ford | F-350 Super Duty | — | Rear Inner | 11.25 in. Ring Gear |
| 2000 | Ford | F-350 Super Duty | — | Rear Inner | Dana Axle |
| 1999 | Ford | E-350 Econoline Club Wagon | — | Rear Inner | Dana/Spicer 80 Axle |
| 1999 | Ford | E-350 Econoline Club Wagon | — | Rear Inner | 11.25 in. Ring Gear |
| 1999 | Ford | F-350 Super Duty | — | Rear Inner | Dana/Spicer 80 Axle |
| 1999 | Ford | F-350 Super Duty | — | Rear Inner | 11.25 in. Ring Gear |
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