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Free Shipping over $99
Earn up to 4.5% Back on Purchases
Assistance From Boat Parts Experts

Free Shipping over $99

Orders $99 or more ship free within the contiguous U.S.
May not apply to engines or oversized orders.

Shipping Policy

Free Shipping over $99

Orders $99 or more ship free within the contiguous U.S.
May not apply to engines or oversized orders.

Shipping Policy

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PartsVu Blue Rewards

Earn up to 1.5 points for every $1 spent. That’s up to 4.5% back that you can redeem and save on future orders. Excludes engine & lower unit sales.

Start Saving Now

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Ready To Serve

Our top priority is your ultimate satisfaction, and to get you back to boating as soon as possible.

Contact a Parts Pro

SALE - MerCruiser Thermostat Kits

(6 products)
  • Mercury Mercruiser - Thermostat Kit - Fits MCM 470/488 & 3.7L Engines - 99155T2

    Mercury

    Mercury Mercruiser - Thermostat Kit - Fits MCM 470/488 & 3.7L Engines - 99155T2

    $33.76 $39.99
    Learn More
  • Mercury Mercruiser - Thermostat Kit - Fits 1982 and Older Ford and GM V-8 Engines with Standard Cooling, 1996 and Older Hi-Performance Models, & Engines w/Closed Cooling - 807252T3

    Mercury

    Mercury – 160°F Thermostat Kit | For V8 MerCruiser Engines | 807252T3

    $33.99 $39.92
    Learn More
  • Mercury Mercruiser - Thermostat Kit - Fits GM V-6 & V-8 Engines w/Closed Cooling - 99155T1

    Mercury

    Mercury – Thermostat & Seal Kit | Cooling System | Factory Marine Finish | 99155T1

    $35.82 $41.99
    Learn More
  • Mercury Mercruiser - Thermostat Kit - Fits 1998 and Older MCM GM In-Line 4 & 6 Cylinder Engines - 59078Q3

    Mercury

    Mercury – Quicksilver Thermostat Kit | Cooling System Component | 140°F Thermostat & Cork Gasket | 59078Q3

    $32.49 $37.99
    Learn More
  • Mercury Mercruiser - Thermostat Kit - Fits 1998 and Older MCM GM In-Line 4 & 6 Cylinder Engines - 59078T3

    Mercury

    Mercury – Thermostat Kit | Cooling System Part | Inline 4 & 6 GM Engines | 59078T3

    $35.53 $41.83
    Learn More
  • Mercury Mercruiser - Thermostat Kit - Fits 1982 and Older Ford and GM V-8 Engines - 807252Q3

    Mercury

    Mercury – Quicksilver 160°F Thermostat Kit | For MerCruiser Engines | 807252Q3

    $30.99 $36.49
    Learn More