Family-Owned • 40+ Years Experience • Authorized Mercury & Mercruiser Dealer


Cooling System

Cooling System

Cooling System

Shop Mercury Outboard Cooling System parts including thermostats, poppet valves, cooling hoses, water jackets, and OEM replacement components designed to help maintain proper engine operating temperatures and long-term reliability. Proper cooling system maintenance is important for preventing overheating and supporting overall engine performance.

Gregor’s Marine carries genuine Mercury cooling system parts for a wide range of outboard applications.

Call our team at (727) 596-5929 for assistance confirming fitment.

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • MERCURY OEM THERMOSTAT, 8M0223832 MERCURY OEM THERMOSTAT, 8M0223832

    Thermostat Assembly Kit for Mercury 5.7L V10 350-425hp Verado Outboards 8M0223832

    Mercury

    MSRP: $19.39
    $16.49
    Genuine Mercury THERMOSTAT, part number 8M0223832. SS# 8M0168892 Mercury Thermostat Assembly Kit 8M0217455 provides proper engine cooling temperatures, helping to assure peak performance and highest efficiency. Fits Mercury 5.7L V10 350-425hp Mercury...
    8M0223832
    SKU:
    8M0223832
    Availability:
    Usually Ships within 24hours
    Weight:
    0.80 Ounces
    MSRP: $19.39
    $16.49
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $19.39
    $16.49
    Subtotal:
  • MERCURY OEM HOSE OIL COOLER, 8M0162443

    Mercury HOSE OIL COOLER 8M0162443

    Mercury

    MSRP: $18.99
    $16.14
    Genuine Mercury HOSE OIL COOLER, part number 8M0162443. Designed for use with compatible applications.
    8M0162443
    SKU:
    8M0162443
    Availability:
    Usually Ships within 24hours
    Weight:
    1.25 Ounces
    MSRP: $18.99
    $16.14
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $18.99
    $16.14
    Subtotal:
  • MERCURY OEM HOSE-EXH TO COOLR, 8M0177664

    Mercury HOSE-EXH TO COOLR OEM 8M0177664

    Mercury

    MSRP: $18.29
    $15.55
    Genuine Mercury HOSE-EXH TO COOLR, part number 8M0177664. Designed for use with compatible applications.
    8M0177664
    SKU:
    8M0177664
    Availability:
    Usually Ships within 24hours
    Weight:
    6.50 Ounces
    MSRP: $18.29
    $15.55
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $18.29
    $15.55
    Subtotal:
  • MERCURY OEM COVER-POPPET, 893384001

    Mercury COVER-POPPET OEM 893384001

    Mercury

    MSRP: $17.89
    $15.21
    Genuine Mercury COVER-POPPET, part number 893384001. Designed for use with compatible applications.
    893384001
    SKU:
    893384001
    Availability:
    Usually Ships within 24hours
    Weight:
    1.25 Ounces
    MSRP: $17.89
    $15.21
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $17.89
    $15.21
    Subtotal:
  • MERCURY OEM SLEEVE-THERMOSTAT, 47508T

    Mercury SLEEVE-THERMOSTAT OEM 47508T

    Mercury

    MSRP: $17.49
    $14.87
    Genuine Mercury SLEEVE-THERMOSTAT, part number 47508T. Designed for use with compatible applications.
    47508T
    SKU:
    47508T
    Availability:
    Usually Ships within 24hours
    Weight:
    0.05 Ounces
    MSRP: $17.49
    $14.87
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $17.49
    $14.87
    Subtotal:
  • MERCURY OEM HOSE ASSY-POPPET, 8M0219997

    Mercury HOSE ASSY-POPPET OEM 8M0219997

    Mercury

    MSRP: $16.76
    $14.25
    Genuine Mercury HOSE ASSY-POPPET, part number 8M0219997. Designed for use with compatible applications.
    8M0219997
    SKU:
    8M0219997
    Availability:
    Usually Ships within 24hours
    Weight:
    3.07 Ounces
    MSRP: $16.76
    $14.25
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $16.76
    $14.25
    Subtotal:
  • MERCURY OEM HOSE COOLING, 8M0142503

    Mercury HOSE COOLING OEM 8M0142503

    Mercury

    MSRP: $16.49
    $14.02
    Genuine Mercury HOSE COOLING, part number 8M0142503. Designed for use with compatible applications.
    8M0142503
    SKU:
    8M0142503
    Availability:
    Usually Ships within 24hours
    Weight:
    1.28 Ounces
    MSRP: $16.49
    $14.02
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $16.49
    $14.02
    Subtotal:
  • MERCURY OEM HOSE-PS COOLER, 8M0118474

    Mercury HOSE-PS COOLER OEM 8M0118474

    Mercury

    MSRP: $15.69
    $13.34
    Genuine Mercury HOSE-PS COOLER, part number 8M0118474. Designed for use with compatible applications.
    8M0118474
    SKU:
    8M0118474
    Availability:
    Usually Ships within 24hours
    Weight:
    5.74 Ounces
    MSRP: $15.69
    $13.34
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $15.69
    $13.34
    Subtotal:
  • MERCURY OEM POPPET, 86596T

    Mercury POPPET OEM 86596T

    Mercury

    MSRP: $15.69
    $13.34
    Genuine Mercury POPPET, part number 86596T. Designed for use with compatible applications.
    86596T
    SKU:
    86596T
    Availability:
    Usually Ships within 24hours
    Weight:
    0.26 Ounces
    MSRP: $15.69
    $13.34
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $15.69
    $13.34
    Subtotal:
  • MERCURY OEM THERMOSTAT, 99155

    Mercury THERMOSTAT OEM 99155

    Mercury

    MSRP: $15.35
    $13.05
    Genuine Mercury THERMOSTAT, part number 99155. Designed for use with compatible applications.
    99155
    SKU:
    99155
    Availability:
    Usually Ships within 24hours
    Weight:
    2.88 Ounces
    MSRP: $15.35
    $13.05
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $15.35
    $13.05
    Subtotal:
  • MERCURY OEM SEAL-THERMOSTAT, 865078

    Mercury SEAL-THERMOSTAT OEM 865078

    Mercury

    MSRP: $15.09
    $12.83
    Genuine Mercury SEAL-THERMOSTAT, part number 865078. Designed for use with compatible applications.
    865078
    SKU:
    865078
    Availability:
    Usually Ships within 24hours
    Weight:
    0.16 Ounces
    MSRP: $15.09
    $12.83
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $15.09
    $12.83
    Subtotal:
  • MERCURY OEM HOSE-COOLR/RESVR, 8M0177523

    Mercury HOSE-COOLR/RESVR OEM 8M0177523

    Mercury

    MSRP: $14.69
    $12.49
    Genuine Mercury HOSE-COOLR/RESVR, part number 8M0177523. Designed for use with compatible applications.
    8M0177523
    SKU:
    8M0177523
    Availability:
    Usually Ships within 24hours
    Weight:
    2.24 Ounces
    MSRP: $14.69
    $12.49
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $14.69
    $12.49
    Subtotal:
  • MERCURY OEM HOSE-STNR TO COOL, 8M0177676

    Mercury HOSE-STNR TO COOL OEM 8M0177676

    Mercury

    MSRP: $14.69
    $12.49
    Genuine Mercury HOSE-STNR TO COOL, part number 8M0177676. Designed for use with compatible applications.
    8M0177676
    SKU:
    8M0177676
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $14.69
    $12.49
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $14.69
    $12.49
    Subtotal:
  • MERCURY OEM POPPET, 888913001

    Mercury POPPET OEM 888913001

    Mercury

    MSRP: $13.89
    $11.81
    Genuine Mercury POPPET, part number 888913001. Designed for use with compatible applications.
    888913001
    SKU:
    888913001
    Availability:
    Usually Ships within 24hours
    Weight:
    0.50 Ounces
    MSRP: $13.89
    $11.81
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $13.89
    $11.81
    Subtotal:
  • MERCURY OEM BRACKET-COOLER, 8M0161635

    Mercury BRACKET-COOLER OEM 8M0161635

    Mercury

    MSRP: $11.89
    $10.11
    Genuine Mercury BRACKET-COOLER, part number 8M0161635. Designed for use with compatible applications.
    8M0161635
    SKU:
    8M0161635
    Availability:
    Usually Ships within 24hours
    Weight:
    2.80 Ounces
    MSRP: $11.89
    $10.11
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $11.89
    $10.11
    Subtotal:
  • MERCURY OEM SPRING-THERMOSTAT, 8M0177702

    Mercury SPRING-THERMOSTAT OEM 8M0177702

    Mercury

    MSRP: $11.59
    $9.85
    Genuine Mercury SPRING-THERMOSTAT, part number 8M0177702. Designed for use with compatible applications.
    8M0177702
    SKU:
    8M0177702
    Availability:
    Usually Ships within 24hours
    Weight:
    0.64 Ounces
    MSRP: $11.59
    $9.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $11.59
    $9.85
    Subtotal:
  • MERCURY OEM GASKET-(PS) COOLR, 8M0177516

    Mercury GASKET-(PS) COOLR OEM 8M0177516

    Mercury

    MSRP: $11.59
    $9.85
    Genuine Mercury GASKET-(PS) COOLR, part number 8M0177516. Designed for use with compatible applications.
    8M0177516
    SKU:
    8M0177516
    Availability:
    Usually Ships within 24hours
    Weight:
    0.85 Ounces
    MSRP: $11.59
    $9.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $11.59
    $9.85
    Subtotal:
  • MERCURY OEM POPPET, 86596

    Mercury POPPET OEM 86596

    Mercury

    MSRP: $11.29
    $9.60
    Genuine Mercury POPPET, part number 86596. Designed for use with compatible applications.
    86596
    SKU:
    86596
    Availability:
    Usually Ships within 24hours
    Weight:
    0.32 Ounces
    MSRP: $11.29
    $9.60
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $11.29
    $9.60
    Subtotal:
  • MERCURY OEM POPPET, 8M2010905

    Mercury POPPET OEM 8M2010905

    Mercury

    MSRP: $11.09
    $9.43
    Genuine Mercury POPPET, part number 8M2010905. Designed for use with compatible applications.
    8M2010905
    SKU:
    8M2010905
    Availability:
    Usually Ships within 24hours
    Weight:
    0.50 Ounces
    MSRP: $11.09
    $9.43
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $11.09
    $9.43
    Subtotal:
  • MERCURY OEM POPPET, 814189

    Mercury POPPET OEM 814189

    Mercury

    MSRP: $10.89
    $9.26
    Genuine Mercury POPPET, part number 814189. Designed for use with compatible applications.
    814189
    SKU:
    814189
    Availability:
    Usually Ships within 24hours
    Weight:
    0.32 Ounces
    MSRP: $10.89
    $9.26
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $10.89
    $9.26
    Subtotal:
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