Description
Product Overview
The GM Genuine Parts water pump gasket is a round, machined component crafted from high‑quality Acdelco fiber‑reinforced composite material. Designed to meet OEM specifications (Part No. 12619770, Model 251‑2065), it matches the exact dimensions of original equipment gaskets—6 × 6 × 1 inches and a weight of just 0.32 oz. This ensures a perfect fit on water pump housings across Chevrolet, Buick, GMC and Cadillac models, providing a reliable seal that withstands high temperature and pressure cycles.
Usage
Ideal for both professional mechanics and DIY enthusiasts, this gasket is used during water pump replacement, cooling system repairs, and routine maintenance. It fits a wide range of GM vehicles, making it a versatile choice for service bays and home garages alike. 
Why Choose Us
GM Genuine Parts are engineered to rigorous GM standards and backed by General Motors’ warranty. The gasket’s fiber composite construction offers superior durability compared to standard rubber gaskets, reducing the risk of leaks and extending service intervals. Each unit undergoes strict quality testing to ensure consistent performance and exact fitment.
Key Features
- Round design engineered for precise alignment on GM water pump housings
- High‑strength Acdelco fiber‑reinforced composite material for heat resistance
- OEM‑approved dimensions and part numbers for exact fit
- Compatible with Chevrolet, Buick, GMC and Cadillac models
- Backed by GM’s rigorous testing and warranty program
FAQ
Is this gasket a direct replacement for the original OEM part?
Yes, it matches the OEM specifications (Part No. 12619770, Model 251‑2065) and is designed to fit exactly where the original gasket was installed.
Can I install this gasket myself?
Absolutely. The gasket is designed for straightforward installation with standard hand tools. Ensure the water pump surface is clean and free of debris before placement.
What material is the gasket made from?
The gasket is constructed from a fiber‑reinforced composite material supplied by Acdelco, offering excellent durability and resistance to heat and coolant chemicals.
Will this gasket work on all GM water pumps?
It is compatible with water pumps used in Chevrolet, Buick, GMC and Cadillac vehicles that specify part number 12619770. Always verify your vehicle’s part number before purchase.
Does the gasket come with a warranty?
Yes, GM Genuine Parts are covered by General Motors’ standard warranty, providing peace of mind for both professional and DIY applications.
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