ACDelco 12647400 Engine Coolant Water Inlet Seal

The ACDelco 12647400 is a GM Original Equipment engine coolant water inlet seal designed to provide a leak-free connection between the engine and water inlet housing. This genuine OE replacement seal helps prevent coolant from leaking out of cooling system components, maintaining proper engine operating temperature and preventing overheating.

Key Features:

• GM Original Equipment quality - manufactured to exact OE specifications for fit, form, and function
• Precision-engineered seal forms a watertight connection at the coolant inlet
• Constructed from premium stainless steel and rubber materials for durability
• Direct replacement for your vehicle's original factory component
• Designed for GM 3.0L and 3.6L engine applications

This water inlet seal is sometimes referred to as a thermostat gasket and is often included with water inlet pipe or inlet assembly replacements. As a genuine ACDelco GM Original Equipment part, it delivers the same performance, durability, and service life you expect from General Motors, ensuring reliable cooling system operation for Buick, Cadillac, Chevrolet, and GMC vehicles.