Dorman 902-5223 Engine Coolant Water Outlet - Cylinder Head

Engine Coolant Water Outlet for BMW

This Dorman engine coolant water outlet is a direct replacement for specified BMW cylinder head outlet applications. Built from black plastic with an included O-ring, it is engineered to match the fit and durability of the original part while handling repeated temperature swings in the cooling system.

• Direct replacement engine coolant water outlet for specified BMW applications
• Black plastic construction for OE-style fit and function
• Includes O-ring for sealing at installation
• 90-degree housing neck angle
• Two mounting holes with 1.95 in. bolt hole center spacing
• Two outlets with 0.88 in. inside diameter and 1.05 in. outlet diameter
• Designed to withstand extreme temperature changes for extended service life
• Part number 902-5223 for ordering and catalog lookup

Detailed Product Overview

Dorman 902-5223 is an engine coolant water outlet designed for BMW cooling system service where the original outlet mounts at the cylinder head. It is a practical OE-style replacement for 1996-1999 BMW 318ti, 1996-1998 BMW 318i, 1996-1998 BMW Z3, and 1996-1997 BMW 318is applications. The housing uses a 90-degree neck angle, two mounting points, and an included O-ring to support a proper seal at the coolant connection.

This part cross-references URO 11531743679 for the same application. If you are replacing a cracked or leaking BMW coolant outlet, 902-5223 provides the fit and material profile needed for a straightforward repair on the cylinder head outlet location.

Common Problems This Part Can Address

• Coolant leakage at the cylinder head outlet
• Cracked or brittle plastic outlet housing
• Loss of sealing at the coolant connection
• Overheating caused by a compromised coolant passage
• Fitment issues from a worn or distorted original outlet

Installation Notes and Tips

Verify the cylinder head outlet location and compare the housing neck angle, outlet diameter, and mounting-hole spacing before installation. The package includes an O-ring, but no gasket, seal, bolts, or bleeder hardware are included. Clean the mating surfaces thoroughly and inspect the surrounding cooling components for wear before reassembly.

Quality Assurance

Dorman designs this replacement water outlet to match the fit and durability of the stock part on specified vehicles. It is engineered to handle extreme temperature changes common in engine cooling systems, helping support long-term service in BMW 318ti, 318i, Z3, and 318is applications.