Mazda Thermostats

Filter

Keep Your Engine Running Right with Genuine Mazda Thermostats

Maintaining the right engine temperature is key to keeping your Mazda performing as it should. The thermostat plays a crucial role in regulating coolant flow and ensuring smooth temperature transitions during every drive. Over time, even quality thermostats can wear out, leading to performance issues and overheating. At Cox Mazda, we offer genuine Mazda thermostats built to last longer and perform better than generic aftermarket alternatives.

Understand What a Thermostat Does

The thermostat controls the flow of coolant between the engine and radiator to maintain a consistent operating temperature. When the engine is cold, it keeps the coolant in place until the motor warms up, then gradually opens to prevent overheating. Vehicles like the Mazda CX-30 and Mazda6 rely on this small but essential part to balance heat and performance efficiently. Using a genuine Mazda thermostat ensures that your vehicle’s cooling system functions exactly as intended by the manufacturer.

Know Why Thermostats Wear Out

After thousands of heating and cooling cycles, thermostats can become stuck open or closed, disrupting temperature control. Corrosion, coolant contamination, or old age are common causes of failure. Cheaper aftermarket thermostats may not fit precisely or respond accurately to temperature changes, increasing the risk of overheating or poor fuel economy. Genuine Mazda replacements from Cox Mazda are engineered for exact fit and reliable performance under all driving conditions.

Replace at the Right Time

Signs such as erratic temperature readings or poor heater performance often indicate a thermostat problem. Replacing it before complete failure helps prevent costly engine damage and keeps your Mazda running efficiently. When replacing your thermostat, consider inspecting the water pump as well, since both parts work closely to regulate engine temperature. At Cox Mazda, we provide high-quality Mazda parts designed for precision, durability, and long-term dependability.

Thermostat Housing

Part Number: BPE8-15-170A
Mazda Mazda
Other Names: Cover Thermo
Replaces: bpe815170
Description: Miata mx5. Lower.
MSRP $104.59
$72.78

Thermostat Set

Part Number: 8173-99-152B
Mazda Mazda
Replaces: 817399152, 817399152a
MSRP $27.77
$19.99

Thermostat Housing

Part Number: 8872-15-170A
Mazda Mazda
Other Names: Cover Thermo
Replaces: 887215170
Description: Rx7. Without fuel injection.
MSRP $43.63
$31.40

Thermostat Gasket

Part Number: 1F22-15-173
Mazda Mazda
Other Names: Gasket Flat O Ring
Description: 4.0L, 2001-09.
MSRP $6.15
$4.50

Thermostat Housing

Part Number: N326-15-172B
Mazda Mazda
Other Names: Cover Thermo Nla
Description: Rx7. With fuel injection. Manual trans.
MSRP $89.56
$63.39

Thermostat Housing

Part Number: JE26-15-176
Mazda Mazda
Other Names: Case Thermo
Description: 929. Dohc. Upper.
$7.42

Thermostat Housing

Part Number: 0290-15-172B
Mazda Mazda
Other Names: Cover Thermo
Description: B2000, B2200. California.
$4.60

Thermostat Housing

Part Number: FS05-15-176A
Mazda Mazda
Other Names: Engine Coolant Thermostat Housing, Case, Case Thermo
Replaces: fs0515176
Description: 2.0L. 1.8L.
MSRP $80.55
$57.02

Thermostat Housing

Part Number: B366-15-172
Mazda Mazda
Other Names: Cover Thermo
Description: 323 & Protege. MX-3. 1.6l.
MSRP $36.52
$26.29

Thermostat Housing

Part Number: PE01-15-17Z
Mazda Mazda
Other Names: Outlet Water
Description: Mazda6. 2.0L, with manual trans. CX-5.
MSRP $121.27
$84.39

Cover Thermostat

Part Number: KLG4-15-170
Mazda Mazda
MSRP $135.40
$94.22

Case Thermostat

Part Number: N3H1-15-176A
Mazda Mazda
MSRP $172.23
$119.85

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!