Dorman 902-308 Engine Coolant Filler Neck

Engine Coolant Thermostat Housing for PT Cruiser

Dorman 902-308 is a replacement engine coolant thermostat housing for select Chrysler PT Cruiser models from 2001-2010. It is built to match the original fit and durability of the stock housing, with a plastic black construction made to handle repeated temperature swings in the cooling system.

Key Features

• Replacement engine coolant thermostat housing for cooling system service
• Fits 2001-2010 Chrysler PT Cruiser, N/A
• Plastic housing with black finish
• 90-degree housing neck angle
• Outlet port diameter: 1.266 in.
• Two mounting holes with 0.276 in. diameter
• No gasket or seal included
• No thermostat, O-rings, bolts, or bleeder valve included

Detailed Description

This Dorman 902-308 water outlet is engineered as a direct replacement for the original engine coolant thermostat housing used on select Chrysler PT Cruiser cooling systems. The housing is designed to match OE fit and withstand extreme temperature changes, helping maintain a secure coolant connection at the thermostat outlet. If you are replacing a cracked or leaking thermostat housing on a Chrysler PT Cruiser, this part number 902-308 provides the correct form factor for the specified application.

This part cross-references Gates CO34749 and Four Seasons 85332 for the same application.

What It Helps Address

• Coolant leaks from a cracked thermostat housing
• Warping or heat damage at the coolant outlet
• Improper sealing at the thermostat housing connection
• Cooling system service on a Chrysler PT Cruiser
• Replacement of a worn OE-style water outlet

Installation Notes and Tips

Verify the outlet port diameter, 90-degree neck angle, and two-hole mounting pattern before installation. Because no gasket, seal, thermostat, O-rings, or bolts are included, transfer or source the required sealing components separately as specified by the vehicle service procedure. Inspect the mating surfaces and cooling hoses for wear before installing Dorman 902-308 on a PT Cruiser cooling system.

Quality Assurance

Dorman designs this replacement thermostat housing to match the fit and durability of the stock part on specified vehicles. The plastic construction is selected to handle extreme temperature changes in normal cooling system operation.