Dorman 902-989 Engine Coolant Thermostat Housing - Upper

Overview of Dorman Engine Coolant Thermostat Housing

The Dorman 902-989 engine coolant thermostat housing is designed specifically for Volkswagen Golf and Jetta models. Constructed from durable black plastic, this thermostat housing ensures reliable performance and proper engine temperature regulation.

• Material: High-quality black plastic for corrosion resistance
• Includes gasket and O-rings for a secure seal
• Two mounting holes with 0.25-inch diameter for precise fitment
• Housing neck angled at 20 degrees from base for optimal coolant flow
• Compatible with Volkswagen Golf and Jetta models

Detailed Product Description

This Dorman engine coolant thermostat housing (part number 902-989) is engineered to replace the original housing on select Volkswagen Golf and Jetta vehicles. The plastic construction offers resistance to corrosion and heat, helping maintain the integrity of the cooling system. The included gasket and O-rings provide a tight seal to prevent coolant leaks, while the two mounting holes ensure secure attachment. The housing neck is angled 20 degrees from the base, designed to facilitate proper coolant flow and thermostat operation. Note that this housing does not include a thermostat or bolts, so those components must be sourced separately if needed.

Common Applications and Issues Addressed

• Replacement for cracked or leaking thermostat housing
• Prevents coolant leaks that can cause engine overheating
• Restores proper coolant flow and temperature regulation
• Eliminates coolant contamination from damaged seals
• Addresses mounting issues due to worn or damaged holes

Installation Notes and Tips

• Ensure the engine is cool before beginning installation
• Use the included gasket and O-rings to prevent leaks
• Verify mounting hole alignment with vehicle specifications
• Torque mounting bolts to manufacturer recommended settings (bolts not included)
• Inspect thermostat separately as it is not included with this housing

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-989 thermostat housing undergoes quality checks to ensure durability and reliable performance in Volkswagen Golf and Jetta cooling systems. Warranty coverage details can be obtained from the product documentation or Dorman directly.