Description
Product Overview
The GM Genuine Parts engine piston pin, part number 12664122, is a machined OEM component engineered for optimal performance in Chevrolet, GMC and Cadillac powertrains. Constructed from high‑strength steel and finished with a precision‑machined exterior, this pin delivers exact tolerances and a weight of just 0.16 oz. Its compact dimensions (0.8 x 0.2 x 0.2 inches) allow seamless integration into engine assemblies, while the manufacturer’s part number ensures direct compatibility with original equipment specifications.
Usage
Designed for both professional service centers and skilled DIY mechanics, this piston pin is suited for routine engine rebuilds, performance upgrades, and emergency repairs. It excels in high‑temperature environments where durability and precise fit are critical. Whether restoring a classic Chevrolet V6 or maintaining a modern GMC diesel, the pin provides the reliability required for demanding automotive applications. 
Why Choose Us
GM Genuine Parts are backed by General Motors’ extensive engineering and testing processes, guaranteeing that each pin meets or exceeds original equipment standards. Our commitment to continuous improvement means the design incorporates the latest material technologies for enhanced wear resistance. With a proven track record reflected in top rankings within the automotive replacement category, you can trust this part to deliver consistent performance and longevity.
Key Features
- Precision‑machined steel construction for exact fit and durability
- OEM‑approved part number 12664122 ensures direct compatibility
- Lightweight design (0.16 oz) reduces overall engine mass
- Engineered for Chevrolet, GMC and Cadillac engine families
- Backed by GM’s rigorous quality assurance and warranty support
FAQ
Is this piston pin compatible with all Chevrolet models?
The pin is designed for Chevrolet engines that originally used part number 12664122. Verify your vehicle’s service manual to confirm compatibility.
Can I install the pin myself?
Yes, with basic hand tools and a torque wrench. Follow the manufacturer’s installation guide to ensure proper seating and torque specifications.
What warranty does GM Genuine Parts provide?
GM Genuine Parts includes a limited warranty covering defects in material and workmanship, typically for one year or 12,000 miles, whichever comes first.
How does this pin differ from aftermarket alternatives?
Unlike generic aftermarket pins, this GM part is engineered to exact OEM tolerances, uses premium steel, and undergoes GM’s strict testing, resulting in superior fit and durability.
Is the pin suitable for high‑performance engine builds?
Yes, its precision machining and high‑strength material make it appropriate for performance applications where reliability under increased stress is essential.
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