Upgrade your vehicle's cooling system with this universal coolant reservoir cap designed for select vehicle models. This replacement cap, part number 54218, is engineered to maintain proper pressure in your coolant system, helping prevent overheating and ensuring optimal engine performance. The cap features a durable construction that's built to withstand high temperatures and pressure variations typical in automotive cooling systems. Its universal design makes it compatible with various vehicle models, offering a reliable replacement solution for your coolant reservoir needs. The cap provides a secure seal to prevent coolant leakage and maintain the right pressure levels in your cooling system. This 1-piece component is designed for straightforward installation, helping you maintain your vehicle's cooling system with minimal hassle. Always verify compatibility with your specific vehicle model before purchase.