142 Degree Thermostat Kit | Sierra 18-3668
142 Degree Thermostat Kit | Sierra 18-3668
Sierra
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142 Degree Thermostat Kit | Sierra 18-3668
Sierra 142 Degree Thermostat Kit | 18-3668
Fits many different models of Mercruiser raw water cooled marine engines.
- Fits various Mercruiser V6, V8 small block and V8 big block raw water engines
- Kit includes 18-3551 142 degree thermostat, 18-2552 cover gasket, 18-2553 cover gasket, 18-2554 cover gasket, 18-7173 o-ring and 18-2917 housing gasket
- Replaces Mercury 807252Q4, 807252T4 | Replaces Mallory 9-43150
The Sierra 18-3668 142 Degree Thermostat Kit is a complete service kit that includes athermostat 142 degree, cover gaskets, an o-ring, and a housing gasket. This kit is designed to fit various Mercruiser V6, V8 small block, and V8 big block raw water engines.
The thermostat in this kit is made of high-quality materials and is designed to operate at 142 degrees Fahrenheit. This ensures that your engine will stay at the correct operating temperature, which helps to prevent overheating and engine damage. The cover gaskets, o-ring, and housing gasket are also made of high-quality materials and are designed to provide a leak-free seal.
This kit is easy to install and can be done with basic hand tools. Simply remove the old thermostat and gaskets, install the new thermostat and gaskets, and you're good to go.
If you're looking for a high-quality thermostat kit for your Mercruiser engine, the Sierra 18-3668 is a great option. This kit is easy to install, reliable, and made of high-quality materials.
Here are some additional benefits of using the Sierra 18-3668 142 Degree Thermostat Kit:
- Helps to prevent overheating and engine damage
- Easy to install
- Made of high-quality materials
- Leak-free seal
- Long lifespan
If you're looking for a reliable and easy-to-install thermostat kit for your Mercruiser engine, the Sierra 18-3668 is a great option. Order your kit today and start enjoying the benefits of a properly operating engine!
! Compatibility references are provided for informational purposes only and do not constitute a fitment guarantee. Part numbers, application listings, and "replaces" cross-references are based on manufacturer data and are intended as a starting point for identification — not a guarantee of fit for your specific engine, hull, or installation.
Buyer is solely responsible for verifying compatibility with their engine model, serial number, model year, and trim configuration before purchase. If you are unsure whether this part fits your application, contact MacombMarineParts.com before you buy — we're available via text, email, or online chat to help verify compatibility for your specific application.
MacombMarineParts.com is not liable for parts ordered based on assumed fitment. Returns due to buyer-selected incorrect fitment are subject to our standard return and restocking fee policies.