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- Seal and maintain the pressure of your cooling system with an AC Delco Coolant Reservoir Cap
- Allows you to raise the boiling point of engine coolant to maintain efficiency
- Designed for direct compatibility to fit most vehicles on the road today
- Ideal replacement for a worn factory cap thanks to AC Delco’s quality, reliability and durability
- Your ACDelco Coolant Reservoir Cap is covered by a 12-month/12,000 mile warranty
Top off your coolant reservoir with the direct compatibility of an AC Delco Coolant Tank Cap. Capable of helping you maintain efficiency by raising the boiling point of engine coolant, these top-of-the-line caps meet AC Delco’s standards of quality, reliability and durability. Fits most modern vehicles. 12-month/12,000 mile warranty.