Thermostat Kit - 18-3608 - Sierra
Price: $24.99
Save: $9.50
(27% Off $34.49)
Part # 18-3608
2nd Day Air for $2.99 More Eligible
This item is found in the following Product Families
    Kit includes: Thermostat (18-3540) and gasket (18-0844)

    Fits: 115 (1991-02), C115 (1991-99), P115 (1993-96), S115 (1996-99), 130 (1991-02), L130 (1991-00), S130 (1996-99), 150 (1991-02), C150 (1996-99), L150 (1991-99), P150 (1991-99), S150 (1996-99), V150 (2000-02), Z150 (2001-02), 175 (1991-95, 97), P175 (1994-99), V175 (2000), Z175 (2001-02), 200 (1991-98), L200 (1991-99), P200 (1991-99), S200 (1996-99), V200 (1998-99), Z200 (2001-02), 225 (1991-97), V225 (1998-99)

Average Customer Review for Thermostat Kit - 18-3608 - Sierra
Full StarFull StarEmpty StarEmpty StarEmpty Star
Based On 1 Review | Write Review
Full StarFull StarEmpty StarEmpty StarEmpty Star
Thermostat Kit 18-3608
by Timothy from Hilton Head Island, South Carolina on April 24, 2017
Ordered 2 new kits for my boat, received order promptly as advertised but one kit contained the wrong thermostat, which I'm not sure how as it was labeled as 18-3608 in sealed package. The package did appear to be older and worn compared with the correct kit packaging. Either way, still waiting for the arrival of the correct thermostat. The correct thermostat and gasket appear to be exact same as the product I'm replacing, hopefully they'll perform to the motor standards.
Was this review helpful?
Is this the proper thermostat kit for a 2004 Yamaha F150 4-stroke?
Yes, this thermostat kit is the match for your Yamaha engine.

I have a 1999 Yamaha S115TXRX. Is this the right themostat for my engine?
Yes, this is the correct thermostat for your engine.

Will this fit a 97 8mlhw?
No, the 18-3608 Thermostat Kit is designed to replace Yamaha 115hp & up. Look in the Description tag to see what engines it will work for.

Ask a question
Question & Answer Guidelines
This product ships in 1 business day.
Add to Cart and enter your Postal Code to determine the shipping charges.
Most products and orders leave our warehouse in 1 business day. However, select items may take more processing time. Alaska and Hawaii orders please add 1 additional warehouse processing day.
Standard Shipping Policies
Do you need Professional Installation? has teamed with a national network of independent installers that are ready to handle your installation needs.
Find your local Amtech dealer: