Mercury-Mercruiser 8M0231826 Oil Thermostat with Piston

8M0231826 Oil Thermostat with Piston
New design oil thermostat and piston. Please see below. This is a genuine Mercury Racing factory OEM part, not aftermarket
Please check our current stock level and order below. Use the Contact Us form at the bottom of the page for any questions
Manufacturer part number: 8M0231826
GTIN: 678633212635
Manufacturer: Mercury Marine
Availability: Not in stock - will be transferred from factory
Normally Ships: Warehouse transfer - on 4th business day
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MSRP: $84.38
$81.91

This oil thermostat assembly for Mercury Racing 502 cubic inch-based and QC4 engines includes the oil thermostat and piston under one part number. Previously sold separately, the original oil thermostat and piston are now no longer available (NLA).

Engine Compatibility

This assembly fits the following Mercury Racing engine models:

Engine Model Serial Number
500 EFI All
520 All
525 EFI All
540 All
565 EFI All
575 SCi All
600 SCi All
700 SCi All
All QC4 engines All

Important: The new oil thermostat and piston must be used together. Neither component is interchangeable with the original oil thermostat or piston.

Engines Not Compatible

This new assembly will not fit the following engines:

  • 500 Carb
  • 525 SC
  • 600 SC
  • D-Tronic Diesel 2.8L and 4.2L engines

This oil thermostat assembly for Mercury Racing 502 cubic inch-based and QC4 engines includes the oil thermostat and piston under one part number. Previously sold separately, the original oil thermostat and piston are now no longer available (NLA).

Engine Compatibility

This assembly fits the following Mercury Racing engine models:

Engine Model Serial Number
500 EFI All
520 All
525 EFI All
540 All
565 EFI All
575 SCi All
600 SCi All
700 SCi All
All QC4 engines All

Important: The new oil thermostat and piston must be used together. Neither component is interchangeable with the original oil thermostat or piston.

Engines Not Compatible

This new assembly will not fit the following engines:

  • 500 Carb
  • 525 SC
  • 600 SC
  • D-Tronic Diesel 2.8L and 4.2L engines