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Sierra 18-3531 Thermostat Housing

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List Price: $20.49
Starting At: $15.99
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Sierra 18-3531 Thermostat Housing

Sierra replacement thermostat housing for Mercruiser Sterndrives. Sierra engine parts are manufactured to meet or exceed OEM requirements.

Fits: MCM/MIE GM V-6 & V-8 (305, 350, 454 & 502 CID) engines w/closed cooling systems

Interchangeable with:

  • GLM
    • 13540
  • Mallory
    • 9-42501
  • Mercruiser Sterndrive
    • 807074A1
    • 808064A1
    • 861188A1

Special Order item.

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Engine Parts
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