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Sierra 18-3649 Marine Thermostat 160° for MerCruiser GM Engines

Manufacturer

Sierra

Picture for manufacturer Sierra

Part Number

118-3649
8 reviews
04/21/2036 9:34 PM
Sale Price

$17.69

4 left at this price

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Usually delivered within 2 days

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Product Details

The Sierra 18-3649 is a premium aftermarket marine thermostat designed for fresh water cooling systems on MerCruiser stern drive engines. Engineered to meet or exceed specifications for GM-based applications requiring a 160° operating temperature, this thermostat provides reliable temperature regulation for optimal engine performance.

Key Features:

  • 160°F temperature rating for fresh water cooling systems
  • Precision-engineered to meet or exceed OEM specifications
  • Fits 1987 and newer GM V6 and V8 engines with standard cooling
  • Compatible with MerCruiser 3.0L, 4.3L, 5.0L, 5.7L, 6.2L, and 7.4L engines
  • Used with Sierra 18-2917 gasket (sold separately)

OEM Cross-Reference Numbers:

  • MerCruiser: 8M0091470, 807252T2, 8072522, 8052732, 8M0109441
  • Crusader: 97895
  • Mallory: 9-43002
  • GLM: 13100
  • Marine Power: 515422

A properly functioning thermostat is essential for maintaining correct engine operating temperature. Sierra thermostats are manufactured to exacting standards, ensuring proper fit and reliable performance for your marine engine.

Smooth transaction and fast shipping.

Quick shipment!

Had what I wanted for a good price.

Thanks for making ordering so quick and easy!

Part got to me fast and it was the exact part I ordered.

Fast shipping

Product arrived well packaged and in a timely fashion. It is good quality , will leave a fitment comment once it is on.

Fast shipping

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