Sierra 18-3653 Thermostat Kit for OMC Marine Engines, Mallory 9-43156 Cross Reference

The Sierra 18-3653 Thermostat Kit is a complete engine cooling system replacement kit built to keep marine engines running at the correct operating temperature. Marine thermostats regulate coolant flow so an engine reaches and holds its designed temperature range, which protects against overheating and against the fuel dilution and excess wear that come from running too cold. This kit is finished in white and is packaged as a single complete unit, ready to install in place of a worn or failing thermostat.

Sierra manufactures its marine parts to meet or exceed the specifications of the original equipment they replace, and this thermostat kit is supplied as a cross reference to Mallory part number 9-43156, so buyers who know either number can confirm they are ordering the correct part. It falls within Sierra's OMC Thermostats and Gaskets line, making it a straightforward like-for-like replacement for engines that use this thermostat design.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-3653
• Product Type: Thermostat Kit
• Category: OMC Thermostats & Gaskets
• Color: White
• Weight: 0.16 pounds
• UPC: 030999236937
• Cross Reference (Mallory): 9-43156

Fitment

This thermostat kit is part of Sierra's OMC Thermostats and Gaskets category and is the direct Sierra-numbered equivalent to Mallory 9-43156.

Replaces (OEM)

• Mallory 9-43156

Frequently Asked Questions

What is the Sierra 18-3653 Thermostat Kit used for? It is a marine engine thermostat kit that regulates coolant flow so the engine reaches and maintains its correct operating temperature, part number 18-3653.

Does the Mallory 9-43156 thermostat cross-reference to this part? Yes, Mallory 9-43156 is the direct cross-reference number for the Sierra 18-3653 Thermostat Kit.

How much does the 18-3653 thermostat kit weigh? The Sierra 18-3653 Thermostat Kit weighs 0.16 pounds.

What color is the Sierra 18-3653 Thermostat Kit? This thermostat kit has a white finish.

What is the UPC for the Sierra 18-3653 Thermostat Kit? The UPC is 030999236937.

Is this a genuine Sierra part or an aftermarket copy? The 18-3653 is a genuine Sierra-branded thermostat kit, manufactured to meet or exceed the specifications of the original equipment it replaces.

What category does this thermostat kit belong to? Sierra lists part 18-3653 in its OMC Thermostats & Gaskets category.

What is included with the 18-3653 kit? The Sierra 18-3653 is sold as a complete Thermostat Kit, one unit per package.

Will Sierra 18-3653 perform as well as the original thermostat it replaces? Sierra states that part 18-3653 is engineered to meet or exceed the performance of the original equipment part it replaces.

How do I know if 18-3653 is the right thermostat for my engine? Confirm your engine's original thermostat is either Sierra 18-3653 or its cross-reference, Mallory 9-43156, before ordering.