Dorman 82597 Engine Coolant Reservoir Cap

Reliable Engine Coolant Reservoir Cap for GM Vehicles

The Dorman 82597 engine coolant reservoir cap is designed to provide a secure seal for your vehicle's coolant system. Compatible with a wide range of Buick, Cadillac, Chevrolet, GMC, Hummer, Oldsmobile, Pontiac, and Saturn models, this cap ensures proper coolant containment and system integrity.

• Durable black plastic construction
• Twist-on attachment type for easy installation
• Diameter of 65.3 mm for precise fit
• Compact size with 1.501 inch length and 2.57 inch width
• Non-vented, non-pressurized design
• Includes one coolant reservoir cap per package

Product Details and Specifications

The Dorman 82597 engine coolant reservoir cap is made from sturdy plastic material, ensuring resistance to heat and corrosion commonly found in engine compartments. Its twist-on design allows for a secure and straightforward attachment to the coolant reservoir, eliminating leaks and maintaining system pressure where applicable. With a diameter of 65.3 mm, this cap fits precisely on compatible reservoirs without the need for modifications. The cap is black in color and measures 1.501 inches in length and 2.57 inches in width, making it a compact and reliable replacement part.

Compatible Vehicles and Applications

This coolant reservoir cap is compatible with numerous GM vehicles, including Buick Alero and LaCrosse, Cadillac Escalade and SRX, Chevrolet Avalanche 1500 and Silverado 1500, GMC Sierra 1500 and Yukon, Hummer H2, Oldsmobile Alero, Pontiac Grand Am, and Saturn Vue among others. The Dorman 82597 is suitable for models such as the Chevrolet Cobalt, Equinox, and Traverse, as well as the GMC Terrain and Yukon XL 1500. This wide fitment range makes it a practical choice for owners of these vehicles seeking a reliable coolant reservoir cap replacement.

Common Issues Addressed by This Coolant Reservoir Cap

• Prevents coolant leaks caused by worn or damaged caps
• Maintains proper coolant system pressure and fluid containment
• Eliminates coolant evaporation and contamination
• Helps avoid engine overheating due to coolant loss
• Replaces cracked or broken reservoir caps to restore system integrity

Installation Notes and Tips

Installation of the Dorman 82597 coolant reservoir cap is straightforward due to its twist-on design. Before installation, ensure the engine is cool to avoid injury from hot coolant. Remove the old cap by twisting counterclockwise and inspect the reservoir neck for damage or debris. Clean the sealing surface if necessary. Align the new cap and twist clockwise until securely seated. Verify that the cap is firmly in place to prevent leaks during operation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing dependable performance and durability. The 82597 engine coolant reservoir cap undergoes quality checks to ensure proper fit and function. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship, supporting confidence in this replacement part.