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MERCURY MARINE Thermostat Kits

Choose the appropriate model number for your engine.

Customer Reviews
Product Models
Description WM Model # MFG Part # Availability Price Quantity  
THERMOSTAT 4538708 59078Q3
In stock online.

$18.99

143° Thermostat Kit for V-6 Outboards 1661974 75692Q03
In stock online.

$18.49

140° Thermostat Kit for 1982 & older Ford & GM V8 standard cooling. 1996 & older high performance models 4538690 807252Q3
In stock online.

$24.99

140° Thermostat Kit for 1983 & newer GM V6 & V8 standard. 140° cooling (except high performance) 5344866 807252Q4
In stock online.

$39.99

160° Thermostat Kit for 1987 and up GM standard 160° cooling 4538716 807252Q5
In stock online.

$32.99

Product Description

Choose the appropriate model number for your engine.

Questions about this Product?
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