Description
Product Overview
The GM Genuine Parts cam bearing is a precision‑engineered ball bearing designed to meet original equipment specifications. Crafted from high‑grade steel and finished with a machined exterior, it offers excellent durability and resistance to wear. Dimensions are 3.09 x 3.06 x 3.06 inches, weighing just 2.88 ounces, and it is compatible with standard oil lubricants for optimal performance.
Usage
This bearing is intended for replacement in engine camshaft assemblies across Chevrolet, Buick, GMC and Cadillac models. It excels in high‑temperature, high‑stress environments, ensuring consistent camshaft rotation and reducing friction. Ideal for professional mechanics and DIY enthusiasts performing engine rebuilds or routine maintenance.

Why Choose Us
GM Genuine Parts are backed by General Motors engineering standards, guaranteeing a perfect fit and reliable operation. Each bearing undergoes rigorous testing for load capacity, heat resistance, and dimensional accuracy. Our commitment to continuous design updates incorporates the latest materials and technologies, giving you confidence in long‑term durability.
Key Features
- Precision‑machined steel construction for superior strength
- Ball bearing design reduces friction and wear
- Oil‑compatible for easy lubrication and maintenance
- Exact OEM dimensions ensure a perfect fit
- Backed by GM engineering standards and warranty
FAQ
What vehicles are compatible with this cam bearing?
The bearing fits Chevrolet, Buick, GMC and Cadillac engines that use the OEM part number 12679049.
Can I use this bearing with synthetic oil?
Yes, the bearing is compatible with both conventional and synthetic engine oils.
How do I verify the correct fit?
Check your vehicle’s service manual for the cam bearing part number 12679049 and compare the dimensions listed.
Is there a warranty on this product?
GM Genuine Parts offers a limited warranty that covers manufacturing defects for a specified period.
Do I need special tools to install the bearing?
Standard bearing installation tools and a torque wrench are recommended to ensure proper seating and torque specifications.






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