Description
Product Overview
The Timken Differential Pinion Bearing NP673386 is engineered for high‑performance automotive differentials. Crafted from hardened steel with a precision‑machined exterior, this bearing offers exceptional load‑carrying capacity and smooth operation. Its dimensions of 4.7 x 1.3 x 4.7 inches and weight of 1 lb make it a compact yet robust component. Designed for grease lubrication, it ensures consistent friction reduction and extended service life in demanding driving conditions.
![[Product front view showing all components]](https://www.bigvibe.store/wp-content/uploads/2026/06/abbb5b5555b24891bbd93f2f7bb8089b.jpg)
Usage
Ideal for passenger cars, light trucks, and performance vehicles, this pinion bearing fits standard differential assemblies. Whether you are rebuilding a drivetrain, performing routine maintenance, or upgrading for higher torque applications, the NP673386 provides reliable performance. It is suited for both professional workshops and DIY mechanics who need a dependable, easy‑to‑install solution.
Why Choose Us
Timken’s reputation for precision engineering ensures this bearing meets strict quality standards. Each unit undergoes rigorous testing for dimensional accuracy, hardness, and load endurance. Our supply chain guarantees authentic parts directly from the manufacturer, backed by comprehensive after‑sales support and a clear return policy, giving you confidence in every purchase.
Key Features
- Precision‑machined steel construction for superior strength and durability
- Grease‑compatible design simplifies maintenance and extends bearing life
- Compact 4.7″ dimensions fit a wide range of differential housings
- High load capacity ensures reliable performance under heavy torque
- Timken brand warranty and responsive customer support for peace of mind
FAQ
What type of lubricant should I use?
Use a high‑quality automotive grease compatible with heavy‑duty bearings to maintain optimal performance.
Is this bearing a direct replacement for my vehicle?
Yes, the NP673386 matches the original equipment specifications for many makes and models; verify your vehicle’s part number before purchase.
Can I install this bearing myself?
With basic hand tools and a bearing press, a DIY enthusiast can install it, but professional installation is recommended for best results.
What is the warranty period?
Timken provides a limited warranty covering manufacturing defects for up to one year from the date of purchase.
How do I ensure proper fitment?
Check the bearing’s dimensions (4.7 x 1.3 x 4.7 inches) against your differential housing and confirm the part number NP673386 matches your vehicle’s service manual.




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