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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.

12622316 - : Engine Coolant Thermostat and Housing Assembly for GM Image

Engine Coolant Thermostat and Housing Assembly

Canyon, Colorado. 2.8 & 2.9L. Hummer H3. 3.7L. This GM Genuine part is designed, engineered and tested to rigorous standards, and are...
$94.11
MSRP $164.38
Save $70.27
42.7% Off
11588719 - : M6x1x60 Engine Coolant Thermostat Housing Bolt for GM Image

M6x1x60 Engine Coolant Thermostat Housing Bolt

Shifter & components, 8 speed trans, 6x60mm. 3.0L twin-turbo. 3.6L 2017-21. This GM Genuine Part is designed, engineered, and tested to...
$0.25
MSRP $0.35
Save $0.10
28.6% Off
12638452 - : Engine Coolant Thermostat and Housing Assembly for GM Image

Engine Coolant Thermostat and Housing Assembly

3.6L twin-turbo. XTS. With turbocharger. Repairs leaking thermostat housings Corrects engine overheating caused by failed thermostat
$132.11
MSRP $230.77
Save $98.66
42.8% Off
212003DD0A - : Engine Coolant Hose for Nissan Image

Engine Coolant Hose

Nissan 21200-3DD0A
ATF Warming. Outlet. Incl.Pipe and Inline Thermostat.
$133.48
MSRP $188.53
Save $55.05
29.2% Off
RG652 - : Motorcraft™ Engine Coolant Thermostat Gasket for Ford Image

Motorcraft™ Engine Coolant Thermostat Gasket

Ford RG-652
$6.70
MSRP $10.07
Save $3.37
33.5% Off
RG648 - : Motorcraft Engine Coolant Thermostat Housing Gasket for Ford Image

Motorcraft Engine Coolant Thermostat Housing Gasket

Ford RG-648
Upper Housing to Engine. F150. F-150. Thermostat housing gasket. Large o-ring. 3.0L, main.
$15.47
MSRP $23.64
Save $8.17
34.6% Off
RTS1081 - : Motorcraft Engine Coolant Thermostat Housing O-Ring for Ford Image

Motorcraft Engine Coolant Thermostat Housing O-Ring

Ford RTS-1081
$11.22
MSRP $16.85
Save $5.63
33.4% Off
RG614 - : Motorcraft Engine Coolant Thermostat Housing Gasket for Ford Image

Motorcraft Engine Coolant Thermostat Housing Gasket

Ford RG-614
O-Ring. 4.0L, 2001-11. Explorer, Mountaineer. 4.0l. With sport, sport trac. From 7/24/01. From 07/24/2000. Explorer Sport Trac. 4.0l....
$5.72
MSRP $8.60
Save $2.88
33.5% Off
12689041 - : Engine Coolant Thermostat and Housing Assembly for GM Image

Engine Coolant Thermostat and Housing Assembly

Enclave, Traverse. Outlook. Acadia Limited. Repairs leaking thermostat housings
$65.86
MSRP $115.04
Save $49.18
42.8% Off
12571261 - : Engine Coolant Thermostat Water Inlet Assembly for GM Image

Engine Coolant Thermostat Water Inlet Assembly

Includes thermostat. All models. Corvette. 8 cylinder, 1998-02. 5.7L. S-series. 5.3L. Incl.Gasket,Housing and Thermostat. Hummer H2....
$44.66
MSRP $76.99
Save $32.33
42% Off
12694088 - : Engine Coolant Thermostat and Housing Assembly for GM Image

Engine Coolant Thermostat and Housing Assembly

Volt. Repairs leaking thermostat housings
$65.86
MSRP $115.04
Save $49.18
42.8% Off
12681133 - : Engine Coolant Thermostat and Housing Assembly for GM Image

Engine Coolant Thermostat and Housing Assembly

3.6L. Traverse. Enclave. Repairs leaking thermostat housings
$78.84
MSRP $137.72
Save $58.88
42.8% Off

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