Dorman 902-090 Engine Auxiliary Water Pump

Reliable Engine Auxiliary Water Pump for Jaguar Models

The Dorman 902-090 engine auxiliary water pump is designed to maintain optimal coolant circulation in select Jaguar vehicles. Engineered with durable materials, this pump supports efficient engine cooling for models including the Jaguar S-Type, XF, XJ8, XJR, XK8, and XKR.

• Constructed from plastic, rubber, and steel components for durability
• Black finish for corrosion resistance and long service life
• Clockwise rotation to match factory specifications
• Two mounting holes with 0.45-inch diameter for secure installation
• Inlet and outlet pipe diameters of 0.54 inches for proper coolant flow
• Depth of 6.7 inches to fit designated engine compartments
• Includes one auxiliary water pump; pulley and gasket not included

Durable Materials and Precise Fitment

The Dorman 902-090 auxiliary water pump features a combination of plastic, rubber, and steel materials that provide strength and resistance to wear. Its black color finish helps protect against corrosion, ensuring consistent performance over time. Designed specifically for Jaguar vehicles such as the S-Type, XF, XJ8, XJR, XK8, and XKR, this pump matches OEM specifications including clockwise rotation and exact inlet/outlet pipe diameters. The two mounting holes allow for a secure fit, while the 6.7-inch depth ensures compatibility within the engine bay.

Compatible Jaguar Models and Common Applications

This auxiliary water pump is compatible with the following Jaguar models:

• Jaguar S-Type
• Jaguar XF
• Jaguar XJ8
• Jaguar XJR
• Jaguar XK8
• Jaguar XKR

It is used to support the engine cooling system by circulating coolant through auxiliary circuits, helping to prevent overheating and maintain engine efficiency.

Common Issues Addressed by the Auxiliary Water Pump

• Engine overheating due to insufficient coolant circulation
• Coolant leaks caused by worn or damaged pump components
• Reduced heater performance in cold weather conditions
• Unusual noises from a failing auxiliary water pump
• Intermittent engine temperature fluctuations

Installation Notes and Tips

Installation of the Dorman 902-090 auxiliary water pump requires basic mechanical skills and proper tools. Ensure the engine is cool before beginning work. Verify the clockwise rotation matches the original pump. Use the two mounting holes with 0.45-inch diameter bolts for secure attachment. Note that this pump does not include a pulley or gasket, so reuse existing components or acquire replacements as needed. Properly bleed the cooling system after installation to remove air pockets.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The 902-090 auxiliary water pump undergoes rigorous quality control to ensure fit and function. Warranty coverage details can be obtained from the product documentation or manufacturer, typically covering defects in materials and workmanship.