To help you find what you are looking for we have a search / Find it Box--Read below to find out how to use the Find It Box...

Search for your needs with plain text, OEM part numbers, DESCRIPTION, or our part number, like(mercruiser manifold), (Suzuki trim motor), (velvet drive kit), etc. If you have difficulty in finding your need, please call us and a tech will assist you. Alternatively, click on a category picture below and drill down. For VELVET DRIVE parts, enter VD in search box

177 Fulford Dr.
Harkers Island, NC 28531
(252) 504-3355
Check Your Order Status
(Tracking Information)

Shopping Cart  [more]

Thermostat Kit for Mercruiser GM Inline 4, 6 Cylinder 59078Q3


  • Part #: SIE18-3650

Add to Cart:

Thermostat and Gasket kit used on Mercruiser inline GM 4 cylinder and 6 cylinder, 153 120 2.5, 140 181 3.0, 250 4.1 165, applications.

143 Degree and is used with Raw Water cooling.

Replaces Mercruiser OEM: # 59078Q3.
WARNING: Cancer and Reproductive Harm-

Copyright © 2021 Basic Power Industries.