My Account
Shopping Cart

Sierra 18-3680 Marine Thermostat

Manufacturer

Part Number

18-3680
Sale Price

$15.56

2 left at this price

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-3680 is a marine engine thermostat engineered to meet or exceed the specifications of the original equipment part it replaces. Designed for use in demanding marine environments, this thermostat regulates engine coolant temperature to ensure optimal operating conditions and help prevent overheating.

Sierra International is a leading supplier of marine engine parts to OEM manufacturers and boat builders, and every Sierra thermostat is built to withstand the harsh conditions of saltwater and freshwater use alike.

Key Features:

  • Meets or exceeds OEM specifications for a direct-fit replacement
  • Engineered for the harsh marine environment
  • Precision temperature control to protect engine from overheating
  • High-quality construction for long-lasting durability
  • Backed by Sierra's industry-leading customer satisfaction warranty

Sierra's 18-3680 thermostat is a reliable, cost-effective replacement for keeping your marine engine running at peak performance. Always verify compatibility with your specific engine before installation.

Easy process, and good product availability.

Very Easy

1

pic was different from product number...so we will see. best price

I was able to find the item that I need for my 1979 quickly. I am eagerly waiting for them to be delivered

Lowest price and maybe fast shipping

This is just what I need to complete my restoration of my 1985 El Camino.

It was easy and fast

fast delivery!

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy