Dorman 902-408 Engine Coolant Filler Neck

Overview of Dorman Engine Coolant Filler Neck 902-408

The Dorman 902-408 engine coolant filler neck is designed for reliable coolant system maintenance on select Lexus and Toyota vehicles. This replacement part ensures proper coolant flow and system integrity for models like the Lexus RX350 and Toyota Sienna.

• Constructed from durable black plastic material
• Includes mounting hardware for straightforward installation
• Snap-on attachment method for secure fitment
• Measures 6 inches in height for precise compatibility
• Package contains one filler neck and one snap ring

Product Details and Specifications

The Dorman 902-408 engine coolant filler neck is engineered from high-quality plastic to resist corrosion and withstand engine bay temperatures. Its black finish complements the engine compartment while providing durability. The included mounting hardware and snap ring simplify installation, ensuring a secure snap-on fit without the need for additional tools. At 6 inches tall, this filler neck is designed to match the original equipment specifications for a proper seal and coolant flow.

Compatible Vehicles and Applications

This engine coolant filler neck is compatible with the Lexus RX350 and Toyota Sienna models, making it a suitable replacement for coolant system maintenance on these vehicles. The part number 902-408 corresponds specifically to these applications, ensuring proper fit and function.

• Prevents coolant leaks caused by damaged or cracked filler necks
• Restores proper coolant system pressure and flow
• Eliminates overheating issues related to faulty filler necks
• Replaces worn or broken mounting hardware for secure attachment
• Helps maintain engine temperature regulation

Installation Notes and Tips

Installation of the Dorman 902-408 filler neck is straightforward due to the included mounting hardware and snap-on attachment method. Before installation, ensure the engine is cool and the coolant system is depressurized. Remove the old filler neck carefully to avoid damaging surrounding components. Align the new filler neck and secure it using the snap ring provided. Verify the fitment on Lexus RX350 or Toyota Sienna models to ensure a proper seal.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-408 engine coolant filler neck undergoes quality checks to ensure durability and performance. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship to provide confidence in the replacement part.