Beat the Heat – Summer Essential Maintenance
24/7 Customer service
USD
Add your vehicle
Address
Login
Cart
Item
$0.00
Add your vehicle to ensure fitment/Choose a yearRequired Fields
Select a different vehicle
Make/Model
VIN
Save

2017 Nissan 370Z Thermostat

3 items

Upgrade your vehicle's thermostat with A-Premium's high-quality options. Choose reliability and durability for a smoother ride.

  • All filters
  • Sort By
  • Price
  • Brand
  • Material
  • Color
  • Warranty
Beck/Arnley 143-0788 Engine Coolant Thermostat Housing AssemblyBeck/Arnley 143-0788 Engine Coolant Thermostat Housing Assembly
Beck/ArnleyPart # 143-0788
Beck/Arnley 143-0788 Engine Coolant Thermostat Housing Assembly
51 Reviews
$39.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1996-2001 INFINITI I30, 2007-2008 INFINITI G35, 2008-2012 INFINITI EX35, 2009-2010 INFINITI M35, 2009-2012 INFINITI FX35, 2009-2013 INFINITI G37, 2011-2012 INFINITI G25, 2011-2013 INFINITI M37, 2012-2013 INFINITI M35h, 2013-2013 INFINITI EX37, 2013-2013 INFINITI FX37, 2014-2015 INFINITI Q50, 2014-2015 INFINITI Q60, 2014-2017 INFINITI QX50, 2014-2017 INFINITI QX70, 2014-2018 INFINITI Q70, 2014-2019 INFINITI Q70, 2015-2015 INFINITI Q40, 2015-2019 INFINITI Q70L, 2016-2018 INFINITI Q50
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2017 Nissan 370Z
Item LocatedUnited States
Quantity1
Part interchange
143-0788
item #1000XD4R
Show less
Thermostat Housing Assembly with Gasket for INFINITI G37 Q50 Q60 Q70 Nissan Maxima
A-Premium®Part # APTHA0042
Thermostat Housing Assembly with Gasket for INFINITI G37 Q50 Q60 Q70 Nissan Maxima
4.682 Reviews
$25.99
Edit ZIP code
2-year warranty
90 days free return
Fits 2011 - 2012 INFINITI EX35, 2013 - 2013 INFINITI EX37, 2011 - 2012 INFINITI FX35, 2013 - 2013 INFINITI FX37, 2011 - 2012 INFINITI G25, 2009 - 2013 INFINITI G37, 1996 - 2001 INFINITI I30, 2012 - 2013 INFINITI M35h, 2011 - 2013 INFINITI M37, 2015 - 2015 INFINITI Q40, 2014 - 2020 INFINITI Q50, 2014 - 2018 INFINITI Q50, 2014 - 2016 INFINITI Q60, 2014 - 2018 INFINITI Q70, 2014 - 2019 INFINITI Q70, 2015 - 2019 INFINITI Q70L, 2014 - 2017 INFINITI QX50, 2009 - 2020 Nissan 370Z, 1995 - 2001 Nissan Maxima
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2017 Nissan 370Z
Item LocatedUnited States
Quantity1
ColorBlack
item #1003CWYL
Note
This part comes with a cover and thermostat.
Show less
Engine Coolant Thermostat - Mahle TI 252 82D
MahlePart # TI 252 82D
Engine Coolant Thermostat - Mahle TI 252 82D
51 Reviews
$35.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1996-2001 INFINITI I30, 2009-2013 INFINITI G37, 2011-2012 INFINITI EX35, 2011-2012 INFINITI FX35, 2011-2012 INFINITI G25, 2011-2013 INFINITI M37, 2012-2013 INFINITI M35h, 2013-2013 INFINITI EX37, 2013-2013 INFINITI FX37, 2014-2015 INFINITI Q50, 2014-2015 INFINITI Q60, 2014-2015 INFINITI QX50, 2014-2017 INFINITI QX70, 2014-2018 INFINITI Q70, 2015-2015 INFINITI Q40, 2015-2018 INFINITI Q70, 2016-2016 INFINITI Q70L, 1995-2001 Nissan Maxima, 2007-2009 Nissan 350Z, 2009-2017 Nissan 370Z
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2017 Nissan 370Z
Item LocatedUnited States
Quantity1
Part interchange
TI 252 82D, 21200-31U01, 21200-31U00, 21200-31U02, 21200-31U03, 33912, 14318, TI25282D, 
...View more
item #1000XT0P
Show less

What is an engine thermostat?

 While all engines can become too hot, if your thermostat isn't working correctly, your engine's well-being is at serious risk. The engine thermostat, often simply referred to as a thermostat, regulates the engine's operating temperature within an optimal range (typically around 195 to 220 degrees Fahrenheit).

How does a car thermostat work?

As a temperature-sensitive valve within the cooling system, a car thermostat responds to changes in coolant temperature. Understanding how it works by the following breakdown steps:

  • Closed position (cold start)

Initially closed to help the engine warm up quickly.

  • Heating up

The engine generates heat during operation.

  • Opening the thermostat

A temperature-sensitive element (usually wax) causes the thermostat to open gradually.

  • Coolant flow

When open, coolant flows from the engine to the radiator.

  • Maintaining optimal temperature

Adjusts coolant flow to maintain the ideal engine temperature.

  • Temperature regulation

Continuously adjusts to prevent overheating and ensure efficient operation.

Signs of a bad thermostat

  1. Overheating: The engine becomes excessively hot due to a stuck-closed thermostat.
  2. Low or fluctuating temperature: A thermostat stuck open results in a cooler engine, affecting fuel efficiency and heating.
  3. Temperature warning light: Illuminates to indicate engine overheating due to a faulty thermostat.
  4. Poor fuel efficiency: Stuck-open thermostat reduces fuel efficiency as the engine operates less efficiently at lower temperatures.
  5. Inadequate cabin heating: Insufficient cabin heating in cold weather with a thermostat that's stuck open.
  6. Coolant leaks: Gasket or sealing issues can lead to coolant leaks.
  7. Rapid temperature fluctuations: The gauge shows rapid swings between hot and cold.
  8. Engine running hot at idle: Higher engine temperature during idle or in traffic due to restricted coolant flow.
  9. Slow or inconsistent warm-up: Longer-than-normal warm-up times, even in moderate weather.
  10. Inconsistent heater operation: This affects the performance of the vehicle's heater, causing inconsistent or inadequate heating in cold weather.

Related Blogs

Why Does Coolant Boil After You Turn the Engine Off?

Learn why coolant boils or bubbles after you turn the engine off, how heat soak affects the cooling system, and how to diagnose leaks, trapped air, cap, thermostat, fan, water pump, or head gasket problems.

Jul 29, 2026