Upgraded VQ40 Thermostat & Housing 170 degree
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    Upgraded VQ40 Thermostat & Housing 170 degree
    Upgraded VQ40 Thermostat & Housing 170 degree
    Upgraded VQ40 Thermostat & Housing 170 degree - View 2
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    Upgraded VQ40 Thermostat & Housing 170 degree
    Upgraded VQ40 Thermostat & Housing 170 degree
    Upgraded VQ40 Thermostat & Housing 170 degree - View 2

    Product Description

    This is our preferred low temp thermostat upgrade for Nissan VQ40 engines.

    This OEM Nissan Thermostat is originally from the 2003-06 Nissan 350Z and features the same fit as as the standard Thermostat for the VQ40 but with a lower opening temp of 170° F compared to the factory VQ40 177° - 182° F opening.

    Alternatively a Nismo Thermostat can also be fitted which has an opening temp of 154.4° F, only recommended for use in the most extreme cases, the low operating temp can have a negative impact on power output and fuel economy in many cases.

    Mishimoto Low temp thermostats for VQ feature an opening temp of 143.6° F and are also only recommended for extreme cases.

    Fits:

    • 2005-2012 Nissan Pathfinder (4.0L V6 VQ40DE)
    • 2005-2015 Nissan Xterra
    • 2005-2019 Nissan Frontier (4.0L V6 VQ40DE)

    NOTE: Please click available options drop down to include gasket.

    Upgraded VQ40 Thermostat & Housing 170 degree

    Brand: Nissan
    Fits models: ...
    Upgraded VQ40 Thermostat & Housing 170 degree
    Upgraded VQ40 Thermostat & Housing 170 degree - View 2
    Please review the product description if you are unsure about any of the options below.

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    $29.55

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    Upgraded VQ40 Thermostat & Housing 170 degree
    $29.55
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    What our customers say

    starstarstarstarstar
    April 21, 2025
    I installed this thermostat along with a new radiator and mount bushings. I wanted a lower temp thermostat for when I tow my boat through the mountains for some extra insurance, works great!!!
    starstarstarstarstar
    April 1, 2025
    Works great and the metal gasket was a big plus. Came with two stickers as well which is always appreciated. Went from temps of 220 to 167-177.
    starstarstarstarstar
    November 3, 2024
    Good parts fast shipping
    starstarstarstarstar
    September 6, 2024
    Works as it should almost 20k miles later.
    starstarstarstarstar
    August 27, 2024
    Works as it should better than knock off cheap ones that you get from the auto parts store Actually opens at specify temperature
    starstarstarstar_borderstar_border
    July 18, 2024
    I always like checking thermostats before installation to make sure they are working properly to reduce the risk of redoing the job twice. Bought the 170-degree thermostat to keep motor cooler, when checking thermostat for proper operation I noticed it did not start to open at 170, but at 181 and fully open at 194 degrees. Rated 3 stars since it works fine but not as advertised.
    starstarstarstarstar
    February 17, 2024
    Exact fit and the gasket is well made. Replacing coolant parts before summer on a 105 K Frontier. Also hoses, clamps, and caps.
    starstarstarstarstar_border
    October 20, 2023
    OEM parts at a reasonable price.
    starstarstarstarstar
    July 13, 2023
    Awesome product and super fast shipping! I do recommend using a small bead of rtv with the metal gasket. I bought for added insurance for when I'm out adventuring on the trails. Will definitely shop Z1 for all my Nissan needs.
    starstarstarstarstar
    January 3, 2023
    Replaced entire cooling system and decided to try this thermostat. My coolant temps are lower than before, but not too low. If doing towing or off roading, this is a must.