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Dorman 902-5149 Engine Coolant Thermostat Housing Assembly
| Brand | Dorman 902-5149 |
|---|---|
| Bleeder Hole | No |
| Bolt Hole Center To Bolt Hole Center | 2.195 in; 2.289 in; 3.338 in |
| Color | Natural |
| Flange Length | 4.15 |
| Flange Thickness | 0.66 |
| Flange Width | 2.985 |
| Gasket Or Seal Included | Yes |
| Gasket Type | Gasket |
| Grade Type | Regular |
| Inside Diameter | 1.191 |
| Material | Metal |
| Mounting Hardware Included | No |
| Mounting Hole Quantity | 3 |
| Outlet Port Quantity | 2 |
| Package Contents | 1 Thermostat Housing; Gasket; 1 Thermostat |
| Thermostat Included | Yes |
| Thermostat Opening Temperature | 180 Deg. F. |
| Fits | INFINITI and Nissan · 22 vehicles |
OE-style replacement. Matches stock housing fit and durability for a straightforward install.
Metal construction. Built to handle extreme temperature changes for longer service life.
Gasket included. Comes with a gasket and thermostat for a complete assembly.
Cross-references BBB Industries 14668, Four Seasons 39170 and Four Seasons 85951 for the same application. See all 7.
Engine Coolant Thermostat Housing Assembly
Dorman 902-5149 is a replacement engine coolant thermostat housing assembly built to match the fit and durability of the original housing on select Nissan and INFINITI vehicles. It combines a metal housing, gasket, and thermostat in one service-ready assembly for direct cooling system repair.
- Metal construction with a natural finish
- Gasket included for sealing at installation
- Thermostat included, opening at 180 Deg. F.
- 3 mounting holes and 2 outlet ports
- Integrated cover design for specified applications
- Fits select 2001-2008 INFINITI and Nissan models
Fitment Coverage
- Fits 2003-2008 INFINITI FX35, N/A. Engine coolant thermostat housing assembly with integrated cover.
- Fits 2003-2007 INFINITI G35, N/A. Engine coolant thermostat housing assembly with integrated cover.
- Fits 2003-2006 Nissan 350Z, N/A. Engine coolant thermostat housing assembly with integrated cover.
- Fits 2001-2004 Nissan Pathfinder, N/A. Engine coolant thermostat housing assembly with integrated cover.
- Fits 2001-2003 INFINITI QX4, N/A. Engine coolant thermostat housing assembly with integrated cover.
Detailed Description
This Dorman thermostat housing assembly is engineered for vehicles that use an integrated cover style coolant outlet. The metal housing, gasket seal, and included thermostat are matched for the specified applications, helping restore proper coolant routing and temperature control in the engine cooling system. Dorman 902-5149 is a direct-fit replacement for select INFINITI FX35, INFINITI G35, Nissan 350Z, Nissan Pathfinder, and INFINITI QX4 applications.
This part cross-references Gates 34041 and Motorad 391-170 for the same application.
Common Repair Uses
- Leaking thermostat housing at the coolant outlet
- Cracked or warped original housing
- Coolant seepage around the housing gasket surface
- Sticking thermostat affecting engine operating temperature
- Service replacement for worn cooling system components
Installation Notes and Tips
Verify the flange dimensions, 3-hole mounting pattern, and 2-port layout against the original part before installation. Clean the mating surfaces thoroughly, inspect adjacent hoses and clamps, and refill the cooling system with the correct coolant mixture after service. Bleeding air from the system is important after thermostat housing replacement to help prevent hot spots and temperature fluctuations.
Quality Assurance
Dorman designs this replacement housing to match the fit and durability of the stock assembly and to withstand repeated temperature changes in normal cooling system operation. The metal construction and included gasket support a reliable seal for the specified vehicles.
| Year | Make | Model | Body Type | Drive Type | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 2008 | INFINITI | FX35 | — | — | — | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2007 | INFINITI | FX35 | — | — | — | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2007 | INFINITI | G35 | — | — | — | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2006 | INFINITI | FX35 | — | — | — | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2006 | INFINITI | G35 | Coupe | — | — | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2006 | Nissan | 350Z | — | — | — | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2005 | INFINITI | FX35 | — | — | — | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2005 | INFINITI | G35 | Coupe | — | — | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2005 | Nissan | 350Z | — | — | — | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2004 | INFINITI | FX35 | — | RWD | — | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2004 | INFINITI | G35 | Coupe | — | — | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2004 | Nissan | 350Z | — | — | — | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2004 | Nissan | Pathfinder | — | — | Automatic | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2003 | INFINITI | FX35 | — | — | — | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2003 | INFINITI | G35 | — | — | — | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2003 | INFINITI | QX4 | — | — | — | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2003 | Nissan | 350Z | — | — | — | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2003 | Nissan | Pathfinder | — | — | Automatic | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2002 | INFINITI | QX4 | — | — | — | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2002 | Nissan | Pathfinder | — | — | Automatic | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2001 | INFINITI | QX4 | — | — | — | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2001 | Nissan | Pathfinder | — | — | Automatic | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
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