Dorman 902-5158 Engine Coolant Filler Neck

Reliable Engine Coolant Filler Neck for Acura and Honda Vehicles

The Dorman 902-5158 engine coolant filler neck is designed to provide a secure and durable connection for your vehicle's cooling system. Engineered for Acura Civic and Honda CSX models, this plastic filler neck ensures proper coolant flow and pressure management.

• Constructed from durable black plastic for corrosion resistance
• Maximum pressure rating of 16 psi to maintain system integrity
• 1-inch outside diameter for precise fitment
• Includes a cap for secure sealing
• Clockwise (right) rotation installation with bolt-on attachment
• Compatible with Acura Civic and Honda CSX models

Product Details and Specifications

The Dorman 902-5158 engine coolant filler neck is made from high-quality plastic, providing resistance to heat and corrosion commonly found in engine compartments. Its 1-inch outside diameter ensures a proper seal with the cooling system hoses. The filler neck is designed for bolt-on installation with a clockwise rotation, simplifying replacement and maintenance. This part includes a cap to prevent coolant leakage and contamination. It is specifically engineered to meet the cooling system requirements of Acura Civic and Honda CSX vehicles, ensuring compatibility and reliable performance.

Common Applications and Problem Resolution

• Replacement for cracked or damaged coolant filler necks
• Prevents coolant leaks that can lead to engine overheating
• Restores proper coolant system pressure and flow
• Eliminates contamination risks by providing a secure cap seal
• Addresses fitment issues in Acura Civic and Honda CSX cooling systems

Installation Notes and Tips

Installation of the Dorman 902-5158 filler neck requires a bolt-on attachment method with clockwise rotation. Ensure the old filler neck is fully removed and the mounting surface is clean before installation. Verify the 1-inch hose diameter matches your vehicle’s cooling system hoses. Since clamps and mounting hardware are not included, reuse existing components or acquire appropriate replacements. Proper installation will help maintain coolant system pressure and prevent leaks.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-5158 engine coolant filler neck undergoes rigorous quality control to ensure durability and performance in Acura Civic and Honda CSX vehicles. While specific warranty details are not provided, Dorman typically offers limited warranties on their replacement parts to support customer confidence.