Mercury outboard spare part 8M0142500 (HOSE Thermostat Outlet). Supplied by Dimo Marine for wholesale and export — genuine and quality aftermarket options available.

Fits 250R HP 4.6L V8 Racing, 300R HP 4.6L V8 Racing, 350 HP 5.7L V10 Verado, 250 4.6L V8 APX, 250 HP 4.6L V8 Pro XS, 250 HP 4.6L V8 SeaPro, 250 HP 4.6L V8 Verado, 250 HP 4.6L V8, 300 HP 4.6L V8 AMS SeaPro, 300 HP 4.6L V8 CMS SeaPro, 300 HP 4.6L V8 CMS, 300 HP 4.6L V8 Pro XS, 300 HP 4.6L V8 Verado, 300 HP 4.6L V8, 300 ROS HP 4.6L V8 15 Inch Midsection Racing, 300R HP 4.6L V8 15 Inch Midsection Racing, 300R HP 4.6L V8 AMS Racing, 350 HP 5.7L V10 Verado SeaPro, 360 HP 4.6L V8 APX, 400 HP 5.7L V10 Verado, 400R HP 5.7L V10 Racing, 425 HP 5.7L V10 Verado, 450R HP 4.6L V8 Racing, 500R HP 4.6L V8 Racing. Select a model tag above to open the exploded diagram and confirm the position.

Part Specifications and Installation Reference

Mercury outboard part 8M0142500 (HOSE Thermostat Outlet), documented in 25 exploded diagram location(s), across the 4-STROKE-EFI series.

SeriesModelSerial rangeREFQtyDiagram
Mercury 4-STROKE-EFI250-4-6l-v8-apx1E054548 UP161View
Mercury 4-STROKE-EFI250-hp-4-6l-v82B529482 UP141View
Mercury 4-STROKE-EFI250-hp-4-6l-v8-pro-xs2B529482 UP161View
Mercury 4-STROKE-EFI250-hp-4-6l-v8-seapro2B529482 UP161View
Mercury 4-STROKE-EFI250-hp-4-6l-v8-verado2B529482 UP141View
Mercury 4-STROKE-EFI250r-hp-4-6l-v8-racing1E080500 UP161View
Mercury 4-STROKE-EFI300-hp-4-6l-v82B529482 UP161View
Mercury 4-STROKE-EFI300-hp-4-6l-v8-ams-seapro2B529482 UP161View
Mercury 4-STROKE-EFI300-hp-4-6l-v8-cms2B529482 UP141View
Mercury 4-STROKE-EFI300-hp-4-6l-v8-cms-seapro2B529482 UP161View
Mercury 4-STROKE-EFI300-hp-4-6l-v8-pro-xs2B529482 UP161View
Mercury 4-STROKE-EFI300-hp-4-6l-v8-verado2B529482 UP161View
Mercury 4-STROKE-EFI300-ros-hp-4-6l-v8-15-inch-midsection-racing1E054618 UP161View
Mercury 4-STROKE-EFI300r-hp-4-6l-v8-15-inch-midsection-racing1E054618 UP161View
Mercury 4-STROKE-EFI300r-hp-4-6l-v8-ams-racing1E081459 UP161View
Mercury 4-STROKE-EFI300r-hp-4-6l-v8-racing1E080500 UP161View
Mercury 4-STROKE-EFI350-hp-5-7l-v10-verado3B266064 THRU 3B576448161View
Mercury 4-STROKE-EFI350-hp-5-7l-v10-verado3B576449 UP161View
Mercury 4-STROKE-EFI350-hp-5-7l-v10-verado-seapro3B266064 UP161View
Mercury 4-STROKE-EFI360-hp-4-6l-v8-apx1E054247 UP161View
Mercury 4-STROKE-EFI400-hp-5-7l-v10-verado3B266064 UP161View
Mercury 4-STROKE-EFI400r-hp-5-7l-v10-racing3B272954 UP161View
Mercury 4-STROKE-EFI425-hp-5-7l-v10-verado3B576447 UP161View
Mercury 4-STROKE-EFI450r-hp-4-6l-v8-racing1E083006 THRU 1E099720161View
Mercury 4-STROKE-EFI500r-hp-4-6l-v8-racing1E099432 UP161View

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Appears in diagrams of these models

  • 250R HP 4.6L V8 Racing
  • 300R HP 4.6L V8 Racing
  • 350 HP 5.7L V10 Verado
  • 250 4.6L V8 APX
  • 250 HP 4.6L V8 Pro XS
  • 250 HP 4.6L V8 SeaPro
  • 250 HP 4.6L V8 Verado
  • 250 HP 4.6L V8
  • 300 HP 4.6L V8 AMS SeaPro
  • 300 HP 4.6L V8 CMS SeaPro
  • 300 HP 4.6L V8 CMS
  • 300 HP 4.6L V8 Pro XS
  • 300 HP 4.6L V8 Verado
  • 300 HP 4.6L V8
  • 300 ROS HP 4.6L V8 15 Inch Midsection Racing
  • 300R HP 4.6L V8 15 Inch Midsection Racing
  • 300R HP 4.6L V8 AMS Racing
  • 350 HP 5.7L V10 Verado SeaPro
  • 360 HP 4.6L V8 APX
  • 400 HP 5.7L V10 Verado
  • 400R HP 5.7L V10 Racing
  • 425 HP 5.7L V10 Verado
  • 450R HP 4.6L V8 Racing
  • 500R HP 4.6L V8 Racing