Designed for American Waters and Weather

Quality U.S. and Imported Marine Parts Built to Last!

Sierra
118-3650

Sierra 18-3650 MerCruiser 1998 & Older Thermostat Kit - (MW)

SKU SIE-18-3650 MPN 118-3650 UPC 030999236920 MFR Sierra

Express
Toronto, ON Vancouver, BC NJ, Warehouse FL, Warehouse OH, Warehouse 4
"Express" items are automated and typically shipped out the next available business day and delivered within 4 days.
In Stock 4 available
$39.19
My Wishlist
Compare

Sierra 18-3650 Mercruiser 140 Degree Thermostat Kit 

For Mercruiser Sterndrive engines using 140 degree thermostat. Fits 1998 & older MCM GM In-Line 4 & 6 cylinder engines.

Kit Includes:

  • (1) 18-2831 Thermostat Gasket
  • (1) 18-3550 Thermostat

Interchangeable with:

  • GLM
    • 13370
  • Mallory
    • 9-43153
  • Mercruiser Stern Drive
    • 59078T3

For Use On Engine Models:

  • 120/2.5L 2324347 - UP
  • 140 (6 CYL) 1538930 - 1725960
  • 140 (4 CYL)/3.0L 2508261 - UP
  • 3.0L/3.0LX C856559 - UP
  • 150 1666495 - 2048046
  • 160 2048022 - 2770031
  • 160 2048022 - 2233574
  • 160 2326069 - 2770031
  • 165 2770032 - 5813433

Supersedes 18-3650D

 

WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov

Product Specifications

BrandSierra
Manufacturer Part No.118-3650
UPC030999236920
Dimensions1.62" L × 6" W × 7.12" H
Shipping Weight0.13 lb
Shipping Box6x6x12"
Liberty Marine USA Logo
Proudly serving customers across United States & Canada with Marine, RV parts and accessories.

Shipping Warehouse Locations:
New Jersey, USA
Florida, USA

About Us

LibertyMarineUSA supplies marine and RV parts and accessories from trusted U.S. manufacturers and proven, quality-approved imported manufacturers. We focus on dependable, quality-tested products from reliable sources, so you can maintain, repair, and outfit your boat or RV with confidence.

Our goal is simple: to deliver the best quality marine parts you can count on. We focus on dependable service, fast shipping, and proven products that are either American-made or American-tested and approved for quality and reliability.