Description
Product Overview
The GM Genuine Parts timing gear is engineered to match original equipment specifications for a range of General Motors vehicles. Constructed from high‑strength machined steel, it offers a robust exterior that resists wear and maintains exact tooth geometry. Weighing just 12.5 ounces and measuring 3 x 3 x 3 inches, the gear provides a compact, lightweight solution without compromising durability. Designed as a direct replacement for part number 55580708, it fits seamlessly into the engine timing system, ensuring accurate synchronization of camshaft and crankshaft rotation.
Usage
This timing gear is ideal for professional mechanics and DIY enthusiasts performing engine rebuilds, timing chain replacements, or routine maintenance on Chevrolet, Buick, GMC, and Cadillac models. It performs reliably in high‑temperature engine bays, delivering consistent timing under both normal driving conditions and demanding performance scenarios. 
Why Choose Us
GM Genuine Parts are backed by General Motors engineering standards, guaranteeing OEM fit and function. Each gear undergoes rigorous testing for material integrity, dimensional accuracy, and durability. Our commitment to continuous improvement means the design incorporates the latest material technologies, providing enhanced wear resistance and longer service life compared to aftermarket alternatives.
Key Features
- Precision‑machined steel construction for superior strength and wear resistance
- Exact OEM dimensions ensure direct fit without modifications
- Lightweight design reduces rotating mass for smoother engine operation
- Validated by GM engineers for Chevrolet, Buick, GMC, and Cadillac applications
- Backed by GM Genuine Parts warranty and support network
FAQ
Is this timing gear compatible with all GM models?
The gear is designed for vehicles that use part number 55580708, covering a broad range of Chevrolet, Buick, GMC, and Cadillac models. Verify your vehicle’s service manual for exact compatibility.
Can I install the gear myself?
Yes, with proper tools and a service manual, experienced DIYers can replace the timing gear. However, professional installation is recommended to ensure correct timing alignment.
What warranty does GM Genuine Parts provide?
The gear comes with the standard GM Genuine Parts warranty, covering defects in material and workmanship for the duration specified by GM.
How does this gear differ from aftermarket alternatives?
Unlike many aftermarket parts, this gear meets GM’s original equipment specifications, offering exact fit, verified durability, and the backing of GM’s engineering and testing processes.
Is the gear coated for corrosion resistance?
Yes, the machined steel is treated with a corrosion‑resistant coating to protect against moisture and engine bay contaminants.




Camshaft Adjuster A-Premium Precision Gear Design
Reviews
There are no reviews yet.