Dorman 902-679 Engine Coolant Filler Neck

Overview of the Dorman Engine Coolant Filler Neck

The Dorman 902-679 engine coolant filler neck is designed for reliable coolant system maintenance on select Toyota and Scion models. This black plastic filler neck provides a durable and precise fit for Toyota Echo, xA, and xB vehicles, ensuring proper coolant flow and system integrity.

• Constructed from durable black plastic for corrosion resistance
• Compatible with Toyota Echo, xA, xB and Scion models
• Measures 5 inches in height for accurate fitment
• Attachment via clamps for secure installation
• Mounting hardware and cap not included
• Includes one engine coolant filler neck (part number 902-679)

Product Details and Specifications

The Dorman 902-679 engine coolant filler neck is engineered to meet OEM specifications for a precise fit on compatible Toyota and Scion vehicles. Made from high-quality plastic, this filler neck resists corrosion and withstands the thermal demands of the engine cooling system. The 5-inch height dimension ensures proper alignment with the radiator and coolant reservoir. Installation uses clamps to securely attach the filler neck, maintaining a tight seal to prevent leaks. Note that this part does not include mounting hardware or a cap, so existing components should be reused or replaced separately if needed.

Compatible Vehicles and Applications

This engine coolant filler neck is compatible with the following vehicles:

• Toyota Echo
• Toyota xA
• Toyota xB
• Scion Echo
• Scion xA
• Scion xB

Use this part number 902-679 when searching for a replacement filler neck for these specific models to ensure proper fit and function.

Common Issues Addressed by the Filler Neck

• Cracked or damaged filler neck causing coolant leaks
• Warped or deteriorated plastic leading to poor coolant flow
• Loose or broken attachment points affecting system pressure
• Corrosion or wear from prolonged exposure to engine heat
• Replacement during radiator or coolant system repairs

Installation Notes and Tips

• Ensure clamps are properly tightened to avoid coolant leaks
• Inspect existing mounting hardware and reuse if in good condition
• Verify the filler neck height and alignment before final installation
• Use compatible coolant and follow vehicle manufacturer guidelines
• Check for any cracks or damage in surrounding hoses during installation

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-679 engine coolant filler neck undergoes quality control inspections to ensure durability and performance. While mounting hardware and caps are not included, this part is backed by Dorman's limited warranty against defects in material and workmanship. Refer to Dorman's warranty policy for specific coverage details.