Dorman 902-103 Coolant Thermostat Housing
Confirm Fitment Before You Buy
Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price
$48.06
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Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.
Product Description
This replacement engine coolant thermostat housing is engineered to match the fit and durability of the stock thermostat housing on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.
- Ideal replacement - this engine coolant thermostat housing directly replaces the original housing on specified vehicle years, makes and models
- Durable construction - this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
- Cost-effective and reliable - offers original manufacturer quality at lower cost than getting replacement at dealer
- Industry-leading design - professionally engineered by the aftermarket leader in replacement thermostat housings
Detailed Applications
| Year | Make | Model | Configuration | Positions | Application Notes |
|---|---|---|---|---|---|
| 2003 | Chevrolet | S10 | L4 134 2.2L (2190cc) | Lower | Cover; Adapter; w/Pipe |
| 2003 | GMC | Sonoma | L4 134 2.2L (2190cc) | Lower | Cover; Adapter; w/Pipe |
| 2002 | Chevrolet | S10 | L4 134 2.2L (2190cc) | Lower | Cover; Adapter; w/Pipe |
| 2002 | GMC | Sonoma | L4 134 2.2L (2190cc) | Lower | Cover; Adapter; w/Pipe |
| 2001 | Chevrolet | S10 | L4 134 2.2L (2190cc) | Lower | Cover; Adapter; w/Pipe |
| 2001 | GMC | Sonoma | L4 134 2.2L (2190cc) | Lower | Cover; Adapter; w/Pipe |
| 2000 | Chevrolet | S10 | L4 134 2.2L (2190cc) | Lower | Cover; Adapter; w/Pipe |
| 2000 | GMC | Sonoma | L4 134 2.2L (2190cc) | Lower | Cover; Adapter; w/Pipe |
| 1999 | Chevrolet | S10 | L4 134 2.2L (2190cc) | Lower | Cover; Adapter; w/Pipe |
| 1999 | GMC | Sonoma | L4 134 2.2L (2190cc) | Lower | Cover; Adapter; w/Pipe |
| 1998 | Chevrolet | S10 | L4 134 2.2L (2190cc) | Lower | Cover; Adapter; w/Pipe |
| 1998 | GMC | Sonoma | L4 134 2.2L (2190cc) | Lower | Cover; Adapter; w/Pipe |
Product Specifications
| Air Vent (Bleeder Valve): | No |
|---|---|
| Bolts Included: | No |
| Color: | Black and Silver |
| Gasket Or Seal Included: | Yes |
| Housing Neck Angle (°): | 45 |
| Material: | Aluminum and Steel |
| Mounting Hole Diameter: | 0.36 in |
| Mounting Hole Quantity: | 5 |
| O Rings Included: | Yes |
| Outside Diameter: | 0.757 in |
| Package Contents: | Coolant Adapter Pipe; Housing Gasket; Thermostat Gasket; Ignition Wire Holder |
| Package Quantity: | 1 |
| Packaging Type: | Box |
| Thermostat Included: | No |
OE Numbers
| DIRECT OE CROSS | |
|---|---|
| 12563996 | GENERAL MOTORS |