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177 Fulford Dr.
Harkers Island, NC 28531
(252) 504-3355
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Housing Thermostat for Mercruiser 5.0 5.7 1 Piece Stainless Steel 861006A1

$199.95

  • Part #: SIE18-1989


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Thermostat Housing for Mercruiser 4.3 and Small Block GM engines. Also fits big block engines with straight across bolts on the intake manifold.

1 Piece Stainless Steel.

Uses Simplified Plumbing.

One hose for Water in from raw water pump.
One hose to Circulating water pump.
One hose to the bottom of each exhaust manifold.

Includes ports for Alarm and Temperature Senders

Replaces: 87290A4, 861006A1

Use 18-1989K Thermostat Service Kit
for replacement parts

Replaces:
861006AMERCURY MARINE
87290A4MERCURY MARINE

WARNING: Cancer and Reproductive Harm-https://www.P65Warnings.ca.gov




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