Big Block and Small Block Chevy Stainless Steel Mercruiser Thermostat Housing Replaces Mercury 860256A4 

  • For use in Big Block and Small Block Chevy Mercruiser Applications
  • Constructed of Cast Stainless Steel.
  • Replaces factory black cast iron MerCruiser housing.
  • Designed to work in conjunction with the factory circulating pump.
  • Can be used in low profile applications such as EFI engines etc.
  • Thermosat NOT Included.
  • Works with Mercruiser 860256A4 MCM & MIE V6 – V8 (305&350cid) w/Bravo Drive
  • Replaces Sierra 18-1989
MSRP: $230.99
Your Price: $179.99
You Save: 22% off MSRP!

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Additonal Info On This Product:
Stainless Steel Thermostat Housing
Big Block & Small Block Chevy with Circulating Pump Low Profile & EFI

These beautiful cast stainless steel thermostat housings are designed to replace that ugly black factory cast iron unit that is original equipment on most Mercruiser applications. It’s gleaming polished finish adds sparkle to any engine. Designed to work in conjunction with the factory circulating pump and available in both standard height and low profile applications such as EFI engines etc.

Specifications On This Product:
Length: 7-1/8"
Width: 5-1/16"
Height: 2-5/16"
Installation Instructions
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