Part of: Sierra Thermostat Kit for Volvo Penta Marine Engines
Other options in this family: Sierra 18-3674 Sierra 18-3677 Sierra 18-3671 Sierra 18-3618 Sierra 18-3621
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$21.77
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Usually delivered within 2 days
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The Sierra 18-3646 is a complete 142-degree thermostat kit designed for Mercruiser raw water cooled marine engines. This comprehensive service kit replaces Mercruiser OEM part number 807252Q3 and is engineered specifically for older high-performance engine models including 1982 and older Ford and GM V-8 engines with standard cooling, as well as 1996 and older hi-performance models.
Complete Kit Includes:
This kit is specifically designed for marine applications and should not be substituted with automotive-style thermostats. Sierra Marine is an aftermarket leader in marine engine parts, offering products that meet or exceed OEM specifications with comprehensive warranty coverage. The 142-degree temperature rating ensures proper engine operating temperature for optimal performance and longevity in raw water cooled Mercruiser applications.
It was gr8 and convinced
Thomas A P
First time ordering from here. Seems to be a good company. The part was decently priced. Shipping was super fast. It was expensive but worth it in the end because I needed the part before a tournament
Mike B
If my order is delivered and is correct part all is good
Randy Y
Very smooth
travis t
Great
lesley b
Very good service, got my seats on Saturday after ordering on Wednesday. Very good quality. Very pleased.
Ronald L
Fast shipping
Mark B
Easy to order!
Lee B
Good price,good product , customer service was on the ball, but shipping took a little bit
james y
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