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OE Quality
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Dorman 902-2064 Engine Coolant Thermostat Housing
| Brand | Dorman 902-2064 |
|---|---|
| Air Vent (Bleeder Valve) | No |
| Bolts Included | No |
| Color | Natural |
| Gasket Or Seal Included | Yes |
| Housing Neck Angle (┬░) | 180 |
| Material | Metal |
| Mounting Hole Diameter | 0.313 |
| Mounting Hole Quantity | 2 |
| O Rings Included | Not Required |
| Outlet Port Diameter | 1.5 |
| Package Contents | Thermostat Housing with Gasket |
| Thermostat Included | No |
| Fits | Chevrolet, GMC, and Checker · 143 vehicles |
OE-style replacement. Engineered to match stock fit and durability.
Metal construction. Built to handle extreme temperature changes.
Includes gasket for a complete thermostat housing assembly.
Cross-references ACI 84890, AMS Automotive 6133 and 465999 for the same application. See all 7.
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Engine Coolant Thermostat Housing for GM Trucks
Dorman 902-2064 is a metal engine coolant thermostat housing built to match the fit and durability of the original housing on specified vehicles. It is made for cooling system service where a replacement thermostat housing needs to handle repeated heat cycling and temperature swings. Compatible With 1978-1985 Chevrolet and GMC truck, van, and SUV applications listed below.
Key Features
- Metal construction with a natural finish
- Outlet port diameter: 1.5 in.
- Gasket included for sealing at installation
- Two mounting holes with 0.313 in. diameter
- 180-degree housing neck angle
- No bleeder valve and no thermostat included
- Package contents: thermostat housing with gasket
Detailed Description
This Dorman thermostat housing, part number 902-2064, is engineered as a direct replacement for select Chevrolet and GMC cooling system applications. The metal housing is designed to match the stock fit and withstand extreme temperature changes, helping maintain a secure coolant passage at the thermostat location. It is a practical replacement for worn, corroded, or cracked housings on classic Chevrolet C10, C20, K10, Camaro, and GMC C1500, K1500, and related models.
This part cross-references ACI 84890 for the same application. The 902-2064 housing is also listed with interchange references including AMS Automotive 6133.
What It Helps Solve
- Coolant leaks at the thermostat housing
- Cracked or warped housing surfaces
- Corrosion around the coolant outlet
- Poor sealing at the thermostat mounting area
- Cooling system service on older Chevrolet and GMC vehicles
Installation Notes and Tips
- Verify the outlet port diameter, mounting hole spacing, and 180-degree neck angle before installation.
- Clean the mating surfaces thoroughly before fitting the included gasket.
- Transfer the thermostat from the existing assembly if needed, since the thermostat is not included.
- Confirm vehicle-specific fitment for Chevrolet C20, K20, P30, GMC C2500, K3500, and other listed applications before ordering.
Quality Assurance
Dorman designs replacement cooling system parts to match original fit and service requirements on specified vehicles. Part number 902-2064 is built for direct replacement use on the listed Chevrolet and GMC applications.
This part fits 143 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1985 | Chevrolet | C20 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1985 | Chevrolet | C30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1985 | Chevrolet | C35 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1985 | Chevrolet | K20 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1985 | Chevrolet | K30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1985 | Chevrolet | P20 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1985 | Chevrolet | P30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1985 | GMC | C2500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1985 | GMC | C3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1985 | GMC | K2500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1985 | GMC | K3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1985 | GMC | P2500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1985 | GMC | P3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1984 | Chevrolet | C20 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1984 | Chevrolet | C30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1984 | Chevrolet | C35 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1984 | Chevrolet | K20 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1984 | Chevrolet | K30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1984 | Chevrolet | P20 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1984 | Chevrolet | P30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1984 | GMC | C2500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1984 | GMC | C2500 Suburban | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1984 | GMC | C3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1984 | GMC | K2500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1984 | GMC | K2500 Suburban | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1984 | GMC | K3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1984 | GMC | P2500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1984 | GMC | P3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1983 | Chevrolet | C20 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1983 | Chevrolet | C30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1983 | Chevrolet | C35 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1983 | Chevrolet | K20 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1983 | Chevrolet | K30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1983 | Chevrolet | P20 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1983 | Chevrolet | P30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1983 | GMC | C2500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1983 | GMC | C3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1983 | GMC | K2500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1983 | GMC | K3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1983 | GMC | P2500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1983 | GMC | P3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1982 | Chevrolet | C20 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1982 | Chevrolet | C20 Suburban | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1982 | Chevrolet | C30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1982 | Chevrolet | K20 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1982 | Chevrolet | K20 Suburban | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1982 | Chevrolet | K30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1982 | Chevrolet | P20 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1982 | Chevrolet | P30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1982 | GMC | C2500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1982 | GMC | C2500 Suburban | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1982 | GMC | C3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1982 | GMC | K2500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1982 | GMC | K2500 Suburban | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1982 | GMC | K3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1982 | GMC | P2500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1982 | GMC | P3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1981 | Chevrolet | C20 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1981 | Chevrolet | C20 Suburban | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1981 | Chevrolet | C30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1981 | Chevrolet | K20 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1981 | Chevrolet | K20 Suburban | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1981 | Chevrolet | K30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1981 | Chevrolet | P20 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1981 | Chevrolet | P30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1981 | GMC | C2500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1981 | GMC | C2500 Suburban | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1981 | GMC | C3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1981 | GMC | K2500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1981 | GMC | K2500 Suburban | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1981 | GMC | K3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1981 | GMC | P2500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1981 | GMC | P3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | Chevrolet | C10 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | Chevrolet | C20 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | Chevrolet | C20 Suburban | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | Chevrolet | C30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | Chevrolet | G20 | 4.1L | L6 | N/A | Cover; w/Intergral Head |
| 1980 | Chevrolet | K10 | 4.8L | L6 | N/A | Cover; w/Intergral Head |
| 1980 | Chevrolet | K20 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | Chevrolet | K20 Suburban | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | Chevrolet | K30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | Chevrolet | P10 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | Chevrolet | P20 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | Chevrolet | P30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | GMC | C1500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | GMC | C2500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | GMC | C2500 Suburban | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | GMC | C3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | GMC | K1500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | GMC | K2500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | GMC | K2500 Suburban | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | GMC | K3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | GMC | P1500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | GMC | P2500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1980 | GMC | P3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1979 | Chevrolet | C10 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1979 | Chevrolet | C20 | 4.1L | L6 | N/A | Cover; w/Intergral Head |
| 1979 | Chevrolet | C20 Suburban | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1979 | Chevrolet | C30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1979 | Chevrolet | Camaro | 4.1L | L6 | N/A | Cover; w/Threaded Port |
| 1979 | Chevrolet | Caprice | 4.1L | L6 | N/A | Cover; w/Threaded Port |
| 1979 | Chevrolet | G20 | 4.1L | L6 | N/A | Cover; w/Intergral Head |
| 1979 | Chevrolet | G30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1979 | Chevrolet | Impala | 4.1L | L6 | N/A | Cover; w/Threaded Port |
| 1979 | Chevrolet | K10 | 4.1L | L6 | N/A | Cover; w/Intergral Head |
| 1979 | Chevrolet | K20 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1979 | Chevrolet | K20 Suburban | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1979 | Chevrolet | K30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1979 | Chevrolet | Nova | 4.1L | L6 | N/A | Cover with California Emissions. |
| 1979 | Chevrolet | P10 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1979 | Chevrolet | P20 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1979 | Chevrolet | P30 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1979 | GMC | C1500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1979 | GMC | C2500 | 4.1L | L6 | N/A | Cover; w/Intergral Head |
| 1979 | GMC | C2500 Suburban | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1979 | GMC | C3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1979 | GMC | K1500 | 4.1L | L6 | N/A | Cover; w/Intergral Head |
| 1979 | GMC | K2500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1979 | GMC | K2500 Suburban | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1979 | GMC | K3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1979 | GMC | P1500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1979 | GMC | P2500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1979 | GMC | P3500 | 4.8L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1978 | Chevrolet | C10 | 4.1L | L6 | N/A | Cover; w/Intergral Head |
| 1978 | Chevrolet | C10 Suburban | 4.1L | L6 | N/A | Cover; w/Intergral Head |
| 1978 | Chevrolet | C20 | 4.1L | L6 | N/A | Cover; w/Intergral Head |
| 1978 | Chevrolet | C30 | 4.1L | L6 | N/A | Cover; w/Intergral Head |
| 1978 | Chevrolet | Camaro | 4.1L | L6 | N/A | Engine coolant thermostat housing for cooling system. |
| 1978 | Chevrolet | Caprice | 4.1L | L6 | N/A | Cover; w/Threaded Port |
| 1978 | Chevrolet | G10 | 4.1L | L6 | N/A | Cover; w/Intergral Head |
| 1978 | Chevrolet | G20 | 4.8L | L6 | N/A | Cover; w/Intergral Head |
| 1978 | Chevrolet | G30 | 4.1L | L6 | N/A | Cover; w/Intergral Head |
| 1978 | Chevrolet | Impala | 4.1L | L6 | N/A | Cover; w/Threaded Port |
| 1978 | Chevrolet | K10 | 4.1L | L6 | N/A | Cover; w/Intergral Head |
| 1978 | Chevrolet | K10 Suburban | 4.1L | L6 | N/A | Cover; w/Intergral Head |
| 1978 | Chevrolet | K20 | 4.1L | L6 | N/A | Cover; w/Intergral Head |
| 1978 | Chevrolet | K5 Blazer | 4.1L | L6 | N/A | Cover; w/Intergral Head |
| 1978 | Chevrolet | Nova | 4.1L | L6 | N/A | Cover with California Emissions. |
| 1978 | GMC | G15 | 4.1L | L6 | N/A | Cover; w/Intergral Head |
| 1978 | GMC | G25 | 4.8L | L6 | N/A | Cover; w/Intergral Head |
| 1978 | GMC | G35 | 4.1L | L6 | N/A | Cover; w/Intergral Head |
| 1978 | GMC | Jimmy | 4.1L | L6 | N/A | Cover; w/Intergral Head |
| No rows match your filter. | ||||||
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACI — 84890AMS Automotive — 6133465999814890CH3064SKC84890TG133