body { font-family: Arial, sans-serif; line-height: 1.6; margin: 20px; } h2, h3 { color: #2c3e50; } ul { list-style: none; padding: 0; } table { width: 100%; border-collapse: collapse; margin: 20px 0; } table, th, td { border: 1px solid #ddd; } th, td { padding: 10px; text-align: left; } th { background-color: #f4f4f4; } .vehicle-list { background-color: #f9f9f9; padding: 15px; border-radius: 5px; } .vehicle-list span { display: inline-block; background-color: #ecf0f1; margin: 5px; padding: 8px 12px; border-radius: 4px; font-size: 14px; } Pressurized Coolant Reservoir This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part. Key Features: ✔ Direct replacement - this engine coolant reservoir matches the fit and function of the original part ✔ Ideal solution - engineered for a seamless installation ✔ Durable construction - manufactured from quality materials to withstand underhood heat and vibration ✔ Trustworthy design - backed by 100 years of automotive aftermarket experience Fitments: Cadillac Escalade 2003 - 2006, Chevrolet Avalanche 2500 2003 - 2006, Chevrolet Silverado 1500 2003 - 2006, Chevrolet Silverado 2500 2003 - 2006, Chevrolet Silverado 3500 2003 - 2006, Chevrolet Tahoe 2003 - 2006, GMC Sierra 1500 2003 - 2006, Chevrolet Suburban 2500 2003 - 2006, GMC Sierra 2500 2003 - 2006, GMC Sierra 3500 2003 - 2006, GMC Yukon 2003 - 2006, Hummer H2 2003 - 2009 Specifications: Feature Details Part 603-102 Cap Type: Spring Loaded Twist Packaging Type: Box Package Quantity: 1.0 Material: Plastic Length: 235 mm Height: 186 mm Oil Filler Cap Included: Yes Mounting Bracket Included: Yes Mounting Hardware Included: No Mounting Hole Quantity: 1 Package Contents: 1 Coolant Reservoir; 1 Cap Color: Clear Buy with confidence – If you encounter any issues with your Dorman product, simply reach out to us. We are committed to ensuring your satisfaction and will assist with any return or exchange requests that meet our policy guidelines. OE Numbers: 15778386, 15075118, 15203949, 15066786, 15778387, 15808715, 15808716, 19353731 Why Choose Dorman? Dorman is a trusted leader in OE-style replacement parts, offering precision-engineered solutions for reliable performance. Each part undergoes rigorous testing to ensure durability, safety, and a seamless fit. Designed as a cost-effective alternative to OEM parts, Dorman provides high-quality replacements backed by expert engineering. Choose Dorman for dependable, long-lasting automotive solutions.