URO GM0613020 Engine Coolant Reservoir Cap

The URO GM0613020 is a premium quality engine coolant reservoir cap designed to seal and maintain proper pressure in your vehicle's cooling system. URO is a brand under A.P.A. Industries Inc, offering cost-effective alternatives to overpriced genuine components without sacrificing quality or performance.

Key Features:

• 15 PSI pressure rating for optimal cooling system performance
• 1-1/2 inch cap depth (35mm) with threaded attachment
• Standard vented design for closed coolant recovery systems
• Precision-molded to OE dimensions for compatibility with original and aftermarket coolant recovery tanks
• Quality cap and seal materials resist engine heat and harsh cooling system environments
• Backed by an unlimited mileage warranty

This coolant reservoir cap plays a critical role in your cooling system by maintaining the proper pressure needed to prevent coolant evaporation and boiling. When pressure inside the cooling system becomes too high, the cap's spring-loaded sealing surface opens slightly to vent excess coolant to the reservoir, then restores the seal once pressure returns to appropriate levels. A properly functioning cap prevents overheating, coolant loss, and potential engine damage.