Dorman 902-5035 Engine Coolant Thermostat Housing

Overview of Dorman Engine Coolant Thermostat Housing 902-5035

The Dorman 902-5035 engine coolant thermostat housing is designed for reliable cooling system performance in select Toyota vehicles. This black plastic housing provides a precise fit for Toyota Celica, Corolla, Matrix, and MR2 Spyder models, ensuring proper coolant flow and engine temperature regulation.

• Durable black plastic construction for corrosion resistance
• Outlet port diameter of 1.25 inches for accurate coolant flow
• Two mounting holes with 0.313 inch diameter for secure installation
• 15-degree housing neck angle to match OEM specifications
• Compatible with Toyota Celica, Corolla, Matrix, and MR2 Spyder
• Part number 902-5035 for easy identification and ordering

Detailed Product Description

The Dorman 902-5035 thermostat housing is engineered to meet the exact fit and function requirements of specific Toyota models. Made from durable plastic, this housing resists corrosion and heat damage commonly found in engine compartments. The 1.25-inch outlet port diameter ensures proper coolant flow, while the 15-degree neck angle aligns with factory specifications to maintain system integrity. With two mounting holes sized at 0.313 inches, the housing installs securely without the need for additional O-rings or seals. This thermostat housing does not include the thermostat or bolts, allowing for flexible installation with existing components.

Common Applications and Issues Addressed

• Replacement for cracked or leaking thermostat housings
• Restores proper coolant flow and engine temperature regulation
• Prevents coolant leaks that can cause engine overheating
• Addresses fitment issues in Toyota Celica, Corolla, Matrix, and MR2 Spyder models
• Eliminates corrosion-related failures in the cooling system

Installation Notes and Tips

• Ensure the engine is cool before beginning installation
• Use appropriate gasket or sealant as this housing does not include a gasket
• Verify mounting hole alignment and torque bolts to manufacturer specifications
• Inspect the thermostat separately as it is not included with this housing
• Check coolant levels and system pressure after installation

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-5035 thermostat housing undergoes rigorous quality control to ensure durability and performance in demanding engine environments. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Consult product documentation for exact warranty terms.