Toyota Thermostats & Parts

2016 Scion iM

Change vehicle

Keep Your Engine in Check With Genuine Toyota Thermostats

Not every problem under the hood is loud or obvious. A faulty thermostat can quietly cause major engine trouble if ignored. These small but essential parts manage temperature to keep your engine running smoothly. At Toyota San Diego Parts, we supply genuine Toyota thermostats and related parts built for precise performance and a perfect fit.

What Thermostats Do And Why They Matter

Your thermostat helps regulate engine temperature by opening and closing to let coolant flow when needed. These parts keep your engine from overheating or running too cold, which affects fuel economy and wear. Genuine Toyota thermostats are calibrated for exact response times, unlike many aftermarket versions that can lag or stick. They’re made to support models like the RAV4 and Sequoia, where consistent cooling makes a difference.

Thermostats Support More Than Just Cooling

Thermostats are often connected with your vehicle’s emissions and fuel control systems. If one fails, it can cause engine codes, poor gas mileage, or heater issues. This can also impact your radiators, which rely on the thermostat to cycle coolant properly. That’s why replacing a worn thermostat with a genuine Toyota part ensures everything works together the way it should.

Know When To Replace The Thermostat

If your engine temperature gauge spikes or you notice weak cabin heat, the thermostat could be sticking. Leaks or corrosion around the housing are also red flags. Replacing it early can prevent overheating or costly damage to other systems. At Toyota San Diego Parts, we carry genuine thermostats and gaskets that fit exactly like the originals.

Protect your engine’s performance—shop genuine Toyota thermostats from us today.

Thermostat Housing

Toyota Toyota
Positions: Lower
Other Names: Engine Coolant Thermostat Housing, Housing Water Inlet
Description: With valvematic eng. C-HR. Thermostat & hoses. IM.
MSRP $82.16
$57.79

Thermostat

Toyota Toyota
Replaces: 90916-03148, 90916-03149
Description: Type b. C-HR. Thermostat & hoses. 1.8L gas, reservoir & hoses. RAV4 hybrid. With hybrid. Corolla. With eco. IM.
MSRP $38.90
$26.90

Gasket, Water Inlet Housing, No. 1

Toyota Toyota
Other Names: Thermostat Seal, Thermostat Housing Seal, Water Inlet Gasket, Gasket, Engine Coolant Thermostat Seal, Engine Coolant Thermostat...
Replaces: 16325-0H030, 16325-28010
MSRP $8.64
$5.97

Water Inlet

Toyota Toyota
Positions: Upper
Other Names: Thermostat Housing, Inlet Water
Replaces: 16321-0T030
MSRP $34.94
$24.15

Housing Gasket

Toyota Toyota
Other Names: Thermostat Housing Gasket, Engine Coolant Thermostat Housing Gasket, Gasket Water Inlet
Description: With valvematic eng. C-HR. Thermostat & hoses. IM.
MSRP $6.97
$4.82

In-Car Sensor

Toyota Toyota
Notes: PARTS: Part included with AC & heater assembly.
Other Names: Thermistor, Thermostatic Switch, Thermistor Probe, A/C Evaporator Temperature Sensor, Thermistor Cooler
Replaces: 88620-02120, 88620-42010, 88625-02110, 88625-26090
Description: Corolla. Japan built. RAV4, RAV4 hybrid. France built. XD. TC. #1. IM. Canada built. With climate control.
MSRP $20.52
$14.19

Tire Pressure Monitoring System (TPMS) Control Module Nut

Toyota Toyota
Other Names: Window Regulator Nut, Door Check Nut, Fan Blade Nut, Side Impact Sens Nut, Insert Panel Nut, Spoiler Nut, Height Sensor Nut, Oil...
Replaces: 9004A-17219, 90178-T0018, 90178-W0019, 94151-80600
MSRP $1.64
$1.14

Engine Coolant Thermostat

Part Number: 9091603075
Toyota Toyota
Local pickup only
Other Names: Thermostat
Description: Fits 4Runner, Camry, Celica, MR2, T100, Tacoma , Tundra MR2. 3.4L. Tundra. Celica. Gt, gt-s. Without turbo. T100. 6...
Fits:
  • Toyota:
    • 4Runner,
    • Camry,
    • Celica,
    • MR2,
    • T100,
    • Tacoma,
    • Tundra
MSRP $38.41
$26.55

No results found for "Thermostat". Here are some helpful search tips:

  • Search by a part name. Example: water pump.
  • Be less specific. Example: brake instead of ceramic brake.
  • Remove information such as make, year or model.
  • Can't find the part you are looking for? Contact us and we'll find it for you!