OEM Toyota Thermostats

90916A3004 - : Engine Coolant Thermostat for Toyota Image

Engine Coolant Thermostat

Toyota 90916-A3004
Type b. C-HR. Thermostat & hoses. 1.8L gas, reservoir & hoses. RAV4 hybrid. With hybrid. Corolla. With eco. Type-C. IM.
$28.67
MSRP $40.07
Save $11.40
28.5% Off
9091603120 - : Engine Coolant Thermostat for Toyota Image

Engine Coolant Thermostat

Toyota 90916-03120
Fits 4Runner, Previa, T100, Tacoma Previa. 2.4 & 2.7L. T100. 4 cylinder. Tacoma. 4 cylinder. 4-runner. 4 cylinder.
$27.48
MSRP $38.41
Save $10.93
28.5% Off
90916A3003 - : Engine Coolant Thermostat for Toyota Image

Engine Coolant Thermostat

Toyota 90916-A3003
$22.60
MSRP $31.59
Save $8.99
28.5% Off
SU00304960 - : Engine Coolant Thermostat for Toyota Image

Engine Coolant Thermostat

Toyota SU003-04960
Engine Cooling. Incl.Gasket. Lower. GR86. Water outlet. 86. No.1 (at water pump). FR-S.
$30.06
MSRP $39.07
Save $9.01
23.1% Off
16343F0010 - : Engine Coolant Thermostat Gasket for Toyota Image

Engine Coolant Thermostat Gasket

Toyota 16343-F0010
O-Ring. 2.4L hybrid. 2.4L, hoses, pipes and components.
$5.22
MSRP $7.30
Save $2.08
28.5% Off
1632631050 - : Engine Coolant Thermostat Gasket for Toyota Image

Engine Coolant Thermostat Gasket

Toyota 16326-31050
$0.94
MSRP $1.31
Save $0.37
28.2% Off
1632128020 - : Engine Coolant Thermostat Housing for Toyota Image

Engine Coolant Thermostat Housing

Toyota 16321-28020
Solara. 2.4l. Camry. 2.4l. RAV4. Highlander. 2.4l. Matrix. Engine # 0xxxxxx-6xxxxxx. Engine # bxxxxxx. Engine # hxxxxxx-kxxxxxx. Camry...
$44.73
MSRP $62.53
Save $17.80
28.5% Off
1632320020 - : Engine Coolant Thermostat Housing for Toyota Image

Engine Coolant Thermostat Housing

Toyota 16323-20020
Sienna. 3.0 & 3.3L. From 01/2003. Highlander Hybrid.
$170.86
MSRP $245.00
Save $74.14
30.3% Off
90118WA574 - : Engine Coolant Thermostat Gasket for Toyota Image

Engine Coolant Thermostat Gasket

Toyota 90118-WA574
Size-Large. All Required.
$3.76
MSRP $5.26
Save $1.50
28.5% Off
163230T020 - : Engine Coolant Thermostat Housing for Toyota Image

Engine Coolant Thermostat Housing

Toyota 16323-0T020
Japan Built Part.
$58.89
MSRP $82.32
Save $23.43
28.5% Off
9043043002 - : Engine Coolant Thermostat Gasket for Toyota Image

Engine Coolant Thermostat Gasket

Toyota 90430-43002
O-Ring.
$3.92
MSRP $5.47
Save $1.55
28.3% Off
1603250110 - : Engine Coolant Thermostat Housing for Toyota Image

Engine Coolant Thermostat Housing

Toyota 16032-50110
4-runner. 8 cylinder. 4.7L. Housing. Land Cruiser. Tundra. Sequoia.
$124.80
MSRP $178.96
Save $54.16
30.3% Off

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Everything You Should Know About Thermostats

The thermostat regulates the flow of coolant to keep your Toyota’s engine at its ideal operating temperature. Whether you drive a reliable Toyota 4Runner or another model, this small part prevents overheating and ensures optimal engine efficiency.

How a Thermostat Works

When your engine starts cold, the thermostat remains closed to help the engine warm up quickly. Once the desired temperature is reached, it opens to circulate coolant through the radiator. If the thermostat fails, your engine may overheat or take longer to reach operating temperature. Pairing your thermostat with properly functioning valve covers helps maintain overall engine health.

Key Benefits of a Thermostat

  • Regulates coolant temperature efficiently.
  • Prevents overheating and improves longevity.
  • Ensures smoother cold starts.
  • Enhances heater performance during winter.
  • Maintains consistent engine performance.

Basic Maintenance Tips for Thermostats

  1. Check coolant levels regularly to prevent air pockets.
  2. Replace the thermostat if your temperature gauge fluctuates.
  3. Use high-quality coolant recommended for your Toyota.
  4. Inspect for leaks around the thermostat housing.
  5. Flush the cooling system periodically for best results.

Related Parts to Check

  • Water pump: Circulates coolant through the system.
  • Radiator hose: Transfers coolant between engine and radiator.
  • Temperature sensor: Monitors coolant heat levels.
  • Radiator cap: Maintains correct pressure in the system.
  • Valve cover gasket: Keeps engine oil sealed and protected.

Keep your cooling system running smoothly with genuine Toyota components. For the best selection and pricing, contact Toyota Parts Express. We guarantee factory-built thermostats designed for reliability.