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OEM Auto Thermostats

Shop OEM Thermostats Designed for Engine Temperature Regulation

Thermostats are cooling system components responsible for regulating engine operating temperature. By controlling the flow of coolant between the engine and radiator, the thermostat helps the engine warm up efficiently and maintain a stable temperature during operation. Over time, heat exposure and mechanical cycling can affect thermostat performance, which is why these parts are often replaced during cooling system service. At Bob Howard Parts Distribution Center, we offer OEM thermostats designed to meet manufacturer specifications.

Thermostat designs vary by engine type and cooling system layout. Opening temperature, housing design, and mounting configuration are engineered for specific applications. Selecting the correct thermostat helps ensure proper coolant flow and supports efficient engine operation.

OEM thermostats are manufactured to align with factory temperature ratings and fitment standards. Using application-specific thermostats helps reduce the risk of overheating, poor warm-up performance, or erratic temperature readings.

Before ordering a thermostat, confirm model year, engine size, and cooling system configuration. You can browse available thermostats to find options matched to your vehicle.

OEM thermostats support consistent engine temperature control and reliable cooling system performance.

RH158 - : Motorcraft Thermostat Housing for Ford Image

Motorcraft Thermostat Housing

Ford RH-158
Upper. Mustang.
$53.69
MSRP $75.83
Save $22.14
29.2% Off
55493557 - : Engine Coolant Thermostat for GM Image

Engine Coolant Thermostat

1.8L. Malibu. Controls the flow of coolant through your vehicle's radiator to help it reach and maintain optimal operating temperature...
$85.85
MSRP $149.96
Save $64.11
42.8% Off
12558969 - : Thermostat Bypass Hose for GM Image

Thermostat Bypass Hose

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$20.23
MSRP $33.99
Save $13.76
40.5% Off
19435095 - : Engine Coolant Thermostat for GM Image

Engine Coolant Thermostat

Incl.Gasket.
$24.85
MSRP $41.76
Save $16.91
40.5% Off
19301PHM305 - : Engine Coolant Thermostat for Honda Image

Engine Coolant Thermostat

Incl.Gasket. Insight.
$41.59
MSRP $59.75
Save $18.16
30.4% Off
256153F300 - : Thermostat Housing Gasket for Hyundai Image

Thermostat Housing Gasket

Hyundai 25615-3F300
Genesis. 4.6 & 5.0L. Equus.
$10.34
MSRP $13.45
Save $3.11
23.1% Off
1123308256K - : Thermostat Unit Bolt for Hyundai Image

Thermostat Unit Bolt

Hyundai 1123308256k
2.0L. 3.8L. 5.0L. 3.3L. 2.7L.
Not For Sale
256513C660 - : Thermostat Housing Gasket for Hyundai Image

Thermostat Housing Gasket

Hyundai 25651-3C660
3.8L, to pipe.
$10.34
MSRP $13.45
Save $3.11
23.1% Off
5048424AD - : Thermostat And Housing for Mopar Image

Thermostat And Housing

Mopar 05048424AD
NONE
$165.60
MSRP $240.00
Save $74.40
31% Off
9091603075 - : Engine Coolant Thermostat for Toyota Image

Engine Coolant Thermostat

Toyota 90916-03075
Fits 4Runner, Camry, Celica, MR2, T100, Tacoma , Tundra MR2. 3.4L. Tundra. Celica. Gt, gt-s. Without turbo. T100. 6...
$28.40
MSRP $38.41
Save $10.01
26.1% Off
9091603157 - : Engine Coolant Thermostat for Toyota Image

Engine Coolant Thermostat

Toyota 90916-03157
2.7L. Tacoma. From 08/2015.
$24.46
MSRP $33.08
Save $8.62
26.1% Off
9091603144 - : Engine Coolant Thermostat for Toyota Image

Engine Coolant Thermostat

Toyota 90916-03144
Fits Corolla , Matrix, XD XD. Matrix. Corolla. Without eco. 1.8L, japan built, type a. 1.8L, manual trans, type a.
$23.36
MSRP $31.59
Save $8.23
26.1% Off

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