Dorman 902-0064 Engine Coolant Reservoir Cap

Overview of Dorman Engine Coolant Reservoir Cap 902-0064

The Dorman 902-0064 engine coolant reservoir cap is designed to maintain proper pressure and seal within the cooling system. Constructed from durable black plastic, this threaded, twist-type cap offers reliable performance for various vehicle makes and models requiring a 76.2 mm diameter coolant reservoir cap.

• Material: Durable black plastic construction
• Diameter: 76.2 mm (3 inches) for precise fitment
• Attachment Type: Threaded for secure installation
• Type: Twist cap for easy removal and replacement
• Non-vented and non-pressurized design
• Length: 19 mm for proper sealing depth
• Package includes one heavy-duty coolant tank cap

Detailed Product Description

The Dorman 902-0064 engine coolant reservoir cap is engineered to provide a secure seal on the coolant tank, preventing leaks and contamination. Its black plastic construction ensures resistance to heat and corrosion commonly found in engine compartments. The 76.2 mm diameter and 19 mm length dimensions are designed to match OEM specifications, making it suitable for vehicles that require a threaded, twist-type coolant reservoir cap without venting or pressure release features.

This cap is ideal for automotive applications where a non-vented, non-pressurized coolant reservoir cap is specified. The threaded attachment type ensures a tight fit, reducing the risk of coolant loss and maintaining system integrity.

Common Applications and Issues Addressed

• Replacement for cracked or damaged coolant reservoir caps
• Prevents coolant leaks caused by worn or loose caps
• Helps maintain proper coolant system pressure in compatible vehicles
• Eliminates contamination from external debris entering the reservoir
• Restores proper sealing to prevent overheating issues

Installation Notes and Tips

• Ensure the coolant reservoir neck is clean and free of debris before installation
• Align the threaded cap carefully and twist clockwise until securely tightened
• Do not overtighten to avoid damaging the plastic threads
• Check for leaks after installation by running the engine and inspecting the cap area

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-0064 engine coolant reservoir cap undergoes quality control inspections to ensure durability and reliability. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship.