Sierra 18-3568 Thermostat Kit-Mercruiser Inboard
For use on V6,V8 with closed cooling.(160 degree)
Replaces Mercruiser Part # 99155T1
Sierra 18-3650 Thermostat Kit-Mercruiser 4 cyl
Fits most 2.5 and 3.0 Mercruiser engines. Contains:•(1) 18-2831 Gasket - replaces O.E.# 27-47590-1
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Sierra 18-3651 Thermostat Kit-Mercruiser V6 & V8
Mercruiser (142 degree)
For use on Mercruiser I/O cooling systems
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