Description
Product Overview
The Koyo STA4195 pinion bearing and race set is designed specifically for GM 8.625″ differentials found in models from 2009 and newer. Crafted from high‑quality steel, the bearing provides exceptional strength and wear resistance, while the race set ensures precise alignment and smooth power transfer. Weighing just 1.48 pounds, this compact kit includes everything needed for a complete bearing replacement, meeting OEM specifications for fit and performance.
![[Product front view showing all components]](https://www.bigvibe.store/wp-content/uploads/2026/06/410222ce2d794d44aca37f378ecdf5f8.jpg)
Usage
This bearing set is ideal for automotive repair shops, fleet maintenance, and DIY mechanics who need a reliable replacement for worn pinion bearings. It performs best in rear‑axle differentials of trucks, SUVs, and performance vehicles, handling high torque loads and frequent temperature changes. Compatible with standard grease, the kit simplifies installation and ensures long‑lasting lubrication in everyday driving conditions.
Why Choose Us
Choosing the Koyo bearing set means trusting a brand with decades of engineering expertise. Each component undergoes rigorous quality testing to guarantee dimensional accuracy and material integrity. Our commitment to durability reduces the risk of premature failure, while our responsive customer support assists with fitment questions and installation guidance, giving you confidence in every repair.
Key Features
- High‑strength steel construction delivers superior durability and wear resistance.
- Precision‑engineered race set ensures perfect alignment for smooth power transfer.
- Designed specifically for GM 8.625″ differentials, guaranteeing a direct fit.
- Compatible with standard grease, simplifying maintenance and extending service life.
- Backed by Koyo’s reputation and dedicated after‑sales support for any technical queries.
FAQ
Is this bearing set compatible with all GM models?
The STA4195 set is intended for GM vehicles equipped with an 8.625″ differential, typically from model year 2009 onward. Verify your vehicle’s differential size to ensure compatibility.
Do I need special tools to install the bearing?
Standard bearing installation tools such as a press or bearing puller are recommended. The kit includes all necessary hardware, but professional tools ensure a proper fit.
Can I use this set with synthetic grease?
Yes, the bearing is compatible with both conventional and synthetic greases, allowing you to choose the lubrication that best fits your maintenance schedule.
What warranty does Koyo provide?
Koyo offers a limited warranty covering manufacturing defects, typically up to one year from the date of purchase.
How does the weight affect installation?
Weighing only 1.48 pounds, the set is lightweight yet robust, making handling and installation straightforward without compromising strength.




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