18-3650 Thermostat Kit

***Warehouse Closure Notice***

We are taking a short break! Our warehouse will be closed for dispatching at the close of business on Thursday 16th January 2025, and will resume operations at a reduced capacity from Tuesday 30th January 2025.

Please note the following:

Our phones will not be manned from Friday 17th January to Monday 10th February.
Orders can still be placed on our web store during this period, but please expect delays in dispatch.
We will continue to respond to emails and web store inquiries.

Thank you for your understanding & Safe Boating!

Sierra Thermostat Kit- 18-3650

Temperature Rating: 140° F
Fits: 1998 & older MCM GM in-line 4 & 6 cyl. engines

Kit Contains:
18-2831-9 Gasket, Thermostat Cover
18-3550 Thermostat

Interchangeable with the following:

GLM
13370

Mercruiser Stern Drive
59078Q3
59078T3
59078T4

(A-S-18-3650)

SKU	A-S-18-3650
Model #	18-3650
Brand	Sierra
Shipping Weight	0.3000kg
Shipping Width	0.151m
Shipping Height	0.034m
Shipping Length	0.170m