/live/media/RB/RB_9025118_Ang.jpg)
Dorman 902-5118 Engine Coolant Thermostat Housing Assembly
| Brand | Dorman 902-5118 |
|---|---|
| Material | Plastic |
| Color | Black |
| Mounting Hardware Included | No |
| Grade Type | Regular |
| Gasket Or Seal Included | Yes |
| Mounting Hole Quantity | 4 |
| Gasket Type | Gasket |
| Flange Length | 4.5 |
| Flange Thickness | 0.45 |
| Flange Width | 4.5 |
| Outlet Port Quantity | 1 |
| Bleeder Hole | No |
| Bolt Hole Center To Bolt Hole Center | 3.1 in; 3.2 in; 4 in; 3 in |
| Inside Diameter | 0.8 in; 1.1 in |
| Package Contents | 1 thermostat housing; 1 thermostat; 1 gasket |
| Thermostat Included | Yes |
| Thermostat Opening Temperature | 203 deg. f. |
| Fits | BMW · 16 vehicles |
OE-style replacement. Matches stock housing fit and durability for a straightforward swap.
Plastic construction. Lightweight housing resists extreme temperature changes for longer service life.
Complete assembly. Includes thermostat and gasket for a ready-to-install solution.
Cross-references AMS Automotive 4632, Beck/Arnley 143-0840 and Dorman - Conduct-Tite 85962 for the same application. See all 9.
Engine Coolant Thermostat Housing Assembly
Dorman 902-5118 is a replacement engine coolant thermostat housing assembly built to match the fit and durability of the original housing on specified vehicles. It includes the thermostat and gasket, and the plastic black housing is engineered to handle repeated temperature swings in daily cooling system service.
Key Features
- Replacement engine coolant thermostat housing assembly for specified BMW applications
- Plastic housing with black finish
- Thermostat included with 203 Deg. F opening temperature
- Gasket included for sealing at the housing interface
- Four mounting holes and one outlet port
- Designed to match stock housing fit and durability
Detailed Description
This Dorman thermostat housing assembly, part number 902-5118, is a direct-fit cooling system replacement for 1996-1999 BMW 318i, 318is, 318ti, and Z3 models. It is built as an OE-style engine coolant thermostat housing assembly with the thermostat and gasket included, helping restore proper coolant flow control and housing sealing at the engine. This part cross-references Beck/Arnley 143-0840 and Motorad 469-203 for the same application.
Compatible With 1996-1999 BMW 318i, 1996-1999 BMW 318is, 1996-1999 BMW 318ti, and 1996-1999 BMW Z3, this thermostat housing assembly is a practical replacement when the original housing shows wear, cracking, or sealing issues. The 4.5-inch flange dimensions, 4 mounting holes, and 0.8 in / 1.1 in inside diameter specifications support accurate fitment on the listed vehicles.
Common Problems This Part Can Address
- Coolant leaks at the thermostat housing
- Cracked or warped plastic housing
- Faulty thermostat operation affecting engine temperature control
- Damaged gasket sealing at the housing flange
- Cooling system service on BMW 318i, 318is, 318ti, or Z3 models
Installation Notes and Tips
Verify the existing housing shape, outlet layout, and mounting-hole pattern before installation. Replace the gasket during service, clean the mating surfaces thoroughly, and inspect adjacent cooling system components for wear or residue. Confirm the thermostat opening temperature matches the vehicle application before final assembly.
Quality Assurance
Dorman designs this replacement housing to match the fit and durability of the stock assembly and to withstand extreme temperature changes for extended service life. Part number 902-5118 is built for specified BMW applications and follows regular-grade replacement standards.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1999 | BMW | 318i | 1.9L | L4 | N/A | Engine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models |
| 1999 | BMW | 318is | 1.9L | L4 | N/A | Engine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models |
| 1999 | BMW | 318ti | 1.9L | L4 | N/A | Engine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models |
| 1999 | BMW | Z3 | 1.9L | L4 | N/A | Engine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models |
| 1998 | BMW | 318i | 1.9L | L4 | N/A | Engine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models |
| 1998 | BMW | 318is | 1.9L | L4 | N/A | Engine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models |
| 1998 | BMW | 318ti | 1.9L | L4 | N/A | Engine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models |
| 1998 | BMW | Z3 | 1.9L | L4 | N/A | Engine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models |
| 1997 | BMW | 318i | 1.9L | L4 | N/A | Engine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models |
| 1997 | BMW | 318is | 1.9L | L4 | N/A | Engine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models |
| 1997 | BMW | 318ti | 1.9L | L4 | N/A | Engine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models |
| 1997 | BMW | Z3 | 1.9L | L4 | N/A | Engine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models |
| 1996 | BMW | 318i | 1.9L | L4 | N/A | Engine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models |
| 1996 | BMW | 318is | 1.9L | L4 | N/A | Engine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models |
| 1996 | BMW | 318ti | 1.9L | L4 | N/A | Engine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models |
| 1996 | BMW | Z3 | 1.9L | L4 | N/A | Engine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models |
| No rows match your filter. | ||||||