Carquest Standard Thermostat: 160 Degrees, 13846
In stock
$8.99
Listed as compatible with this vehicle by the retailer feed.
Check price2003 GMC Sonoma Thermostats
21 products listed for this model year in the retailer catalog. Check engine and trim details before ordering.
Carquest Standard Thermostat: 160 Degrees, 228-160
In stock
$9.99
Listed as compatible with this vehicle by the retailer feed.
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Carquest Standard Thermostat: 180 Degrees, 13398
In stock
$9.99
Listed as compatible with this vehicle by the retailer feed.
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Carquest Standard Thermostat: 195 Degrees, 13399
In stock
$10.49
Listed as compatible with this vehicle by the retailer feed.
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Carquest Standard Thermostat:180 Degrees, 13848
In stock
$10.99
Listed as compatible with this vehicle by the retailer feed.
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Carquest Standard Thermostat: 195 Degrees, 13849
In stock
$10.99
Listed as compatible with this vehicle by the retailer feed.
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Carquest Standard Thermostat: With Seal, 195 Degrees, 14119
In stock
$11.99
Listed as compatible with this vehicle by the retailer feed.
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Carquest Standard Thermostat: 170 Degrees, 228-170
In stock
$13.99
Listed as compatible with this vehicle by the retailer feed.
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Carquest Hose Connector, CH8003
In stock
$13.99
Listed as compatible with this vehicle by the retailer feed.
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Motorad UltraStats UltraStat Thermostat: 180 Degrees, 5203-180
In stock
$17.99
Listed as compatible with this vehicle by the retailer feed.
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Carquest Standard Thermostat: 195 Degrees, 13779
In stock
$17.99
Listed as compatible with this vehicle by the retailer feed.
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Motorad UltraStats UltraStat Thermostat: 195 Degrees, 5203-195
In stock
$19.99
Listed as compatible with this vehicle by the retailer feed.
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Carquest Coolant Housing/Water Outlet: Gasket Included, 85017
In stock
$29.99
Listed as compatible with this vehicle by the retailer feed.
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Carquest Coolant Housing/Water Outlet, CH5168
In stock
$39.99
Listed as compatible with this vehicle by the retailer feed.
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Carquest Hose Connector, CH8005
In stock
$46.99
Listed as compatible with this vehicle by the retailer feed.
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Dorman Coolant Housing/Water Outlet: with Coolant Pipe, Gaskets, and Ignition Holder, 902-103
In stock
$49.99
Listed as compatible with this vehicle by the retailer feed.
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Motorad Engine Coolant Thermostat Housing Assembly Thermostat: With Seal, 195 Degrees, 5168KT
In stock
$50.99
Listed as compatible with this vehicle by the retailer feed.
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Carquest Coolant Housing/Water Outlet: Gasket Included, 85168
In stock
$50.99
Listed as compatible with this vehicle by the retailer feed.
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Carquest Coolant Housing/Water Outlet: Includes Coolant Adapter Pipe and Gasket, CH2003
In stock
$55.99
Listed as compatible with this vehicle by the retailer feed.
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GM Genuine Parts Engine Coolant Water Outlet, 15-1794
In stock
$78.99
Listed as compatible with this vehicle by the retailer feed.
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Carquest Coolant Housing/Water Outlet: With Gasket, CH2103
Out of stock
$15.99
Listed as compatible with this vehicle by the retailer feed.
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This site contains affiliate links. We may earn a commission if you buy through them. We do not sell these products or guarantee merchant inventory. Compatibility is listed by the retailer feed for this vehicle; it is not an OEM confirmation. Catalog snapshot: Aug 15, 2026.