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, 8M6013865

    Mercury THERMOSTAT OEM 8M6013865

    Mercury

    MSRP: $39.49
    $33.57
    Genuine Mercury THERMOSTAT, part number 8M6013865. Designed for use with compatible applications.
    8M6013865
    SKU:
    8M6013865
    Availability:
    Usually Ships within 24hours
    Weight:
    1.60 Ounces
    MSRP: $39.49
    $33.57
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $39.49
    $33.57
    Subtotal:
  • MERCURY OEM THERMOSTAT, 8M0045990

    Mercury THERMOSTAT OEM 8M0045990

    Mercury

    MSRP: $39.49
    $33.57
    Genuine Mercury THERMOSTAT, part number 8M0045990. Designed for use with compatible applications.
    8M0045990
    SKU:
    8M0045990
    Availability:
    Usually Ships within 24hours
    Weight:
    2.96 Ounces
    MSRP: $39.49
    $33.57
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $39.49
    $33.57
    Subtotal:
  • MERCURY OEM THERMOSTAT-140, 59078

    Mercury THERMOSTAT-140 OEM 59078

    Mercury

    MSRP: $39.49
    $33.57
    Genuine Mercury THERMOSTAT-140, part number 59078. Designed for use with compatible applications.
    59078
    SKU:
    59078
    Availability:
    Usually Ships within 24hours
    Weight:
    1.38 Ounces
    MSRP: $39.49
    $33.57
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $39.49
    $33.57
    Subtotal:
  • MERCURY OEM END COVER-COOLER, 8M6004014

    Mercury END COVER-COOLER OEM 8M6004014

    Mercury

    MSRP: $38.99
    $33.14
    Genuine Mercury END COVER-COOLER, part number 8M6004014. Designed for use with compatible applications.
    8M6004014
    SKU:
    8M6004014
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $38.99
    $33.14
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $38.99
    $33.14
    Subtotal:
  • MERCURY OEM THERMOSTAT @2, 59078Q3

    Mercury THERMOSTAT @2 OEM 59078Q3

    Mercury

    MSRP: $38.49
    $32.72
    Genuine Mercury THERMOSTAT @2, part number 59078Q3. Designed for use with compatible applications.
    59078Q3
    SKU:
    59078Q3
    Availability:
    Usually Ships within 24hours
    Weight:
    2.24 Ounces
    MSRP: $38.49
    $32.72
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $38.49
    $32.72
    Subtotal:
  • MERCURY OEM THERMOSTAT, 8M0186873

    Mercury THERMOSTAT OEM 8M0186873

    Mercury

    MSRP: $37.99
    $32.29
    Genuine Mercury THERMOSTAT, part number 8M0186873. Designed for use with compatible applications.
    8M0186873
    SKU:
    8M0186873
    Availability:
    Usually Ships within 24hours
    Weight:
    1.12 Ounces
    MSRP: $37.99
    $32.29
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $37.99
    $32.29
    Subtotal:
  • MERCURY OEM HOUSING - POPPET, 8M0053929

    Mercury HOUSING - POPPET OEM 8M0053929

    Mercury

    MSRP: $37.49
    $31.87
    Genuine Mercury HOUSING - POPPET, part number 8M0053929. Designed for use with compatible applications.
    8M0053929
    SKU:
    8M0053929
    Availability:
    Usually Ships within 24hours
    Weight:
    8.00 Ounces
    MSRP: $37.49
    $31.87
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $37.49
    $31.87
    Subtotal:
  • MERCURY OEM HOSE ASY-CC COOLR, 8M0205213

    Mercury HOSE ASY-CC COOLR OEM 8M0205213

    Mercury

    MSRP: $36.49
    $31.02
    Genuine Mercury HOSE ASY-CC COOLR, part number 8M0205213. Designed for use with compatible applications.
    8M0205213
    SKU:
    8M0205213
    Availability:
    Usually Ships within 24hours
    Weight:
    7.68 Ounces
    MSRP: $36.49
    $31.02
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $36.49
    $31.02
    Subtotal:
  • MERCURY OEM THERMOSTAT, 76270T

    Mercury THERMOSTAT OEM 76270T

    Mercury

    MSRP: $36.49
    $31.02
    Genuine Mercury THERMOSTAT, part number 76270T. Designed for use with compatible applications.
    76270T
    SKU:
    76270T
    Availability:
    Usually Ships within 24hours
    Weight:
    3.20 Ounces
    MSRP: $36.49
    $31.02
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $36.49
    $31.02
    Subtotal:
  • MERCURY OEM THERMOSTAT KIT, 807252Q3

    Mercury THERMOSTAT KIT OEM 807252Q3

    Mercury

    MSRP: $36.49
    $31.02
    Genuine Mercury THERMOSTAT KIT, part number 807252Q3. Designed for use with compatible applications.
    807252Q3
    SKU:
    807252Q3
    Availability:
    Usually Ships within 24hours
    Weight:
    3.50 Ounces
    MSRP: $36.49
    $31.02
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $36.49
    $31.02
    Subtotal:
  • MERCURY OEM HOSE-COOLING, 865715

    Mercury HOSE-COOLING OEM 865715

    Mercury

    MSRP: $35.99
    $30.59
    Genuine Mercury HOSE-COOLING, part number 865715. Designed for use with compatible applications.
    865715
    SKU:
    865715
    Availability:
    Usually Ships within 24hours
    Weight:
    9.01 Ounces
    MSRP: $35.99
    $30.59
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $35.99
    $30.59
    Subtotal:
  • MERCURY OEM THERMOSTAT, 8M0139434

    Mercury THERMOSTAT OEM 8M0139434

    Mercury

    MSRP: $34.99
    $29.74
    Genuine Mercury THERMOSTAT, part number 8M0139434. Designed for use with compatible applications.
    8M0139434
    SKU:
    8M0139434
    Availability:
    Usually Ships within 24hours
    Weight:
    0.06 Ounces
    MSRP: $34.99
    $29.74
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $34.99
    $29.74
    Subtotal:
  • MERCURY OEM THERMOSTAT KIT, 803061T1

    Mercury THERMOSTAT KIT OEM 803061T1

    Mercury

    MSRP: $34.99
    $29.74
    Genuine Mercury THERMOSTAT KIT, part number 803061T1. Designed for use with compatible applications.
    803061T1
    SKU:
    803061T1
    Availability:
    Usually Ships within 24hours
    Weight:
    0.11 Ounces
    MSRP: $34.99
    $29.74
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $34.99
    $29.74
    Subtotal:
  • MERCURY OEM POPPET HOUSING, 8M0032206

    Mercury POPPET HOUSING OEM 8M0032206

    Mercury

    MSRP: $34.99
    $29.74
    Genuine Mercury POPPET HOUSING, part number 8M0032206. Designed for use with compatible applications.
    8M0032206
    SKU:
    8M0032206
    Availability:
    Usually Ships within 24hours
    Weight:
    7.01 Ounces
    MSRP: $34.99
    $29.74
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $34.99
    $29.74
    Subtotal:
  • MERCURY OEM BRACKET-COOLER, 8M0095480

    Mercury BRACKET-COOLER OEM 8M0095480

    Mercury

    MSRP: $34.99
    $29.74
    Genuine Mercury BRACKET-COOLER, part number 8M0095480. Designed for use with compatible applications.
    8M0095480
    SKU:
    8M0095480
    Availability:
    Usually Ships within 24hours
    Weight:
    17.30 Ounces
    MSRP: $34.99
    $29.74
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $34.99
    $29.74
    Subtotal:
  • MERCURY OEM THERMOSTAT, 8M6013844

    Mercury THERMOSTAT OEM 8M6013844

    Mercury

    MSRP: $34.49
    $29.32
    Genuine Mercury THERMOSTAT, part number 8M6013844. Designed for use with compatible applications.
    8M6013844
    SKU:
    8M6013844
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $34.49
    $29.32
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $34.49
    $29.32
    Subtotal:
  • MERCURY OEM THERMOSTAT, 8M0109441

    Mercury THERMOSTAT OEM 8M0109441

    Mercury

    MSRP: $34.49
    $29.32
    Genuine Mercury THERMOSTAT, part number 8M0109441. Designed for use with compatible applications.
    8M0109441
    SKU:
    8M0109441
    Availability:
    Usually Ships within 24hours
    Weight:
    2.00 Ounces
    MSRP: $34.49
    $29.32
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $34.49
    $29.32
    Subtotal:
  • MERCURY OEM THERMOSTAT, 864493

    Mercury THERMOSTAT OEM 864493

    Mercury

    MSRP: $33.99
    $28.89
    Genuine Mercury THERMOSTAT, part number 864493. Designed for use with compatible applications.
    864493
    SKU:
    864493
    Availability:
    Usually Ships within 24hours
    Weight:
    3.01 Ounces
    MSRP: $33.99
    $28.89
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $33.99
    $28.89
    Subtotal:
  • MERCURY OEM THERMOSTAT, 8M6013874

    Mercury THERMOSTAT OEM 8M6013874

    Mercury

    MSRP: $31.99
    $27.19
    Genuine Mercury THERMOSTAT, part number 8M6013874. Designed for use with compatible applications.
    8M6013874
    SKU:
    8M6013874
    Availability:
    Usually Ships within 24hours
    Weight:
    1.28 Ounces
    MSRP: $31.99
    $27.19
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $31.99
    $27.19
    Subtotal:
  • MERCURY OEM THERMOSTAT, 8M6010305

    Mercury THERMOSTAT OEM 8M6010305

    Mercury

    MSRP: $31.99
    $27.19
    Genuine Mercury THERMOSTAT, part number 8M6010305. Designed for use with compatible applications.
    8M6010305
    SKU:
    8M6010305
    Availability:
    Usually Ships within 24hours
    Weight:
    1.23 Ounces
    MSRP: $31.99
    $27.19
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $31.99
    $27.19
    Subtotal:
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