Go-Parts
Cart 0
Your cart is empty
Add an item to see it appear here.

INFINITI Q45 Engine Coolant Thermostat Replacement

1
SELECT Year
  1. ✓ In Stock 1997-2001 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    1997-2001 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    Partslink #: 268-170

    170 Degrees F Use Silicone Sealant Alternate Temperature Option

    $15.57 View part →
  2. ✓ In Stock 1997-2001 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    1997-2001 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    Partslink #: 268-180

    180 Degrees F Use Silicone Sealant OE Specified Temperature

    $15.57 View part →
  3. ✓ In Stock 2002-2006 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    2002-2006 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    Partslink #: 5302-170

    170 Degrees F Alternate Temperature Option

    $19.41 View part →
  4. ✓ In Stock 2002-2006 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    2002-2006 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    Partslink #: 5302-180

    180 Degrees F OE Specified Temperature

    $19.41 View part →
  5. ✓ In Stock 2002-2006 INFINITI Q45 Engine Coolant Thermostat (Calorstat)

    2002-2006 INFINITI Q45 Engine Coolant Thermostat (Calorstat)

    Partslink #: TH6297.82J

    Gasket included Opening Temp: 82 C / 180 F OEM Recommended With OE No. 21200AD201

    $20.32 View part →
  6. ✓ In Stock 2002-2006 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    2002-2006 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    Partslink #: 302-180

    180 Degrees F OE Specified Temperature

    $20.85 View part →
  7. ✓ In Stock 1997-2001 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    1997-2001 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    Partslink #: 268-192

    192 Degrees F Use Silicone Sealant Higher Alternate Temperature Replacement

    $21.22 View part →
  8. ✓ In Stock 2002-2006 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    2002-2006 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    Partslink #: 7302-180

    180 Degrees F OE Specified Temperature ; "The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating."

    $21.24 View part →
  9. ✓ In Stock 2002-2006 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    2002-2006 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    Partslink #: 7302-170

    170 Degrees F Alternate Temperature Option ; "The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating."

    $21.24 View part →
  10. ✓ In Stock 2002-2006 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    2002-2006 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    Partslink #: 302-170

    170 Degrees F Alternate Temperature Option

    $21.24 View part →
  11. ✓ In Stock 1997-2001 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    1997-2001 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    Partslink #: 7268-170

    170 Degrees F Use Silicone Sealant Alternate Temperature Option ; "The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating."

    $21.38 View part →
  12. ✓ In Stock 1990-1996 INFINITI Q45 Engine Coolant Thermostat (Stant)

    1990-1996 INFINITI Q45 Engine Coolant Thermostat (Stant)

    Partslink #: 14687

    Temperature 170 Degrees Gasket not required, use silicone; OE Temperature

    $22.45 View part →
  13. ✓ In Stock 1990-1996 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    1990-1996 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    Partslink #: 282-170

    170 Degrees F OE Specified Temperature

    $23.43 View part →
  14. ✓ In Stock 2002-2006 INFINITI Q45 Engine Coolant Thermostat - Upper (Gates)

    2002-2006 INFINITI Q45 Engine Coolant Thermostat - Upper (Gates)

    Partslink #: 34160

    205 Degree; OE Temperature; Seal included

    $24.50 View part →
  15. ✓ In Stock 2002-2006 INFINITI Q45 Engine Coolant Thermostat (Facet)

    2002-2006 INFINITI Q45 Engine Coolant Thermostat (Facet)

    Partslink #: 7.8730

    Control Valve Gasket included: Y

    $24.83 View part →
  16. ✓ In Stock 1997-2001 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    1997-2001 INFINITI Q45 Engine Coolant Thermostat (Motorad)

    Partslink #: 5268-170

    170 Degrees F Use Silicone Sealant Alternate Temperature Option

    $28.52 View part →
  17. ✓ In Stock 1997-2001 INFINITI Q45 Engine Coolant Thermostat (Beck Arnley)

    1997-2001 INFINITI Q45 Engine Coolant Thermostat (Beck Arnley)

    Partslink #: 143-0721

    ORIGINAL EQUIPMENT TEMPERATURE; Gasket/Seal Not Included TEMPERATURE 82C/180F

    $30.89 View part →
  18. ✓ In Stock 2002-2006 INFINITI Q45 Engine Coolant Thermostat (Autopart International)

    2002-2006 INFINITI Q45 Engine Coolant Thermostat (Autopart International)

    Partslink #: W0133-3353926

    Water Control Valve

    $31.12 View part →
  19. ✓ In Stock 2002-2006 INFINITI Q45 Engine Coolant Thermostat (Beck Arnley)

    2002-2006 INFINITI Q45 Engine Coolant Thermostat (Beck Arnley)

    Partslink #: 143-0845

    ORIGINAL EQUIPMENT TEMPERATURE; Gasket/Seal Not Included TEMPERATURE 82C/180F

    $31.82 View part →
  20. ✓ In Stock 2002-2006 INFINITI Q45 Engine Coolant Thermostat (NTC - TAMA)

    2002-2006 INFINITI Q45 Engine Coolant Thermostat (NTC - TAMA)

    Partslink #: W0133-1951096

    Water Control Valve

    $34.65 View part →
  21. ✓ In Stock 2002-2006 INFINITI Q45 Engine Coolant Thermostat (Gates)

    2002-2006 INFINITI Q45 Engine Coolant Thermostat (Gates)

    Partslink #: W0133-2206937

    Water Control Valve

    $42.37 View part →
  22. ✓ In Stock 2002-2006 INFINITI Q45 Engine Coolant Thermostat - Lower (Gates)

    2002-2006 INFINITI Q45 Engine Coolant Thermostat - Lower (Gates)

    Partslink #: 33878

    180 Degree; OE Temperature

    $42.61 View part →
  23. ✓ In Stock 1997-2001 INFINITI Q45 Engine Coolant Thermostat (Genuine)

    1997-2001 INFINITI Q45 Engine Coolant Thermostat (Genuine)

    Partslink #: W0133-1726655
    $51.40 View part →
  24. ✓ In Stock 1990-1996 INFINITI Q45 Engine Coolant Thermostat (Gates)

    1990-1996 INFINITI Q45 Engine Coolant Thermostat (Gates)

    Partslink #: W0133-1726484

    Production: 09/1989-

    $55.73 View part →
  25. ✓ In Stock 2002-2006 INFINITI Q45 Engine Coolant Thermostat (Gates)

    2002-2006 INFINITI Q45 Engine Coolant Thermostat (Gates)

    Partslink #: W0133-1708233

    Main - Engine Block

    $56.28 View part →
  26. ✓ In Stock 2002-2006 INFINITI Q45 Engine Coolant Thermostat (Aisin)

    2002-2006 INFINITI Q45 Engine Coolant Thermostat (Aisin)

    Partslink #: W0133-2238158

    Main - Engine Block

    $57.57 View part →
  27. ✓ In Stock 2002 INFINITI Q45 Engine Coolant Thermostat (Gates)

    2002 INFINITI Q45 Engine Coolant Thermostat (Gates)

    Partslink #: 34041

    180 Degree; OE Temperature

    $72.07 View part →
  28. ✓ In Stock 2002 INFINITI Q45 Engine Coolant Thermostat (Mishimoto)

    2002 INFINITI Q45 Engine Coolant Thermostat (Mishimoto)

    Partslink #: MMTS-350Z-03L
    $89.95 View part →

What buyers are saying.

★★★★★ 4.9 1,451 verified reviews

Racing Partner Videos

Engine Coolant Thermostat Compatibility for INFINITI Q45

Browse our selection of quality engine coolant thermostat parts designed specifically for your INFINITI Q45. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.

Available Trims

A · Anniversary Edition · Base · Convenience · Premium · Premium TA · T · TA

Body Types

Sedan

Engine Options

V8 4.1L · V8 4.5L

Transmissions

Automatic

Added to cart · Part