Sierra Thermostat Kit 223-3651, 140 Degree, Replaces Westerbeke 35736 and 34196

The Sierra 223-3651 Thermostat Kit is a direct-fit replacement thermostat assembly built for select Westerbeke marine generator models. It carries a 140 degree temperature rating, matching the factory-specified opening point so the generator's cooling circuit reaches and holds correct operating temperature. As a Sierra part, it is engineered to meet or exceed the specification of the original equipment thermostat it replaces, using materials designed to hold up in the marine environment.

This kit is intended as a straightforward swap for a worn, stuck, or failed thermostat on compatible Westerbeke generators, restoring proper coolant flow regulation and helping the engine avoid running too cold or overheating. It replaces Westerbeke thermostat part numbers 35736 and 34196, so it can be ordered using either of those reference numbers as well as the Sierra part number 223-3651.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 223-3651
• Product Type: Thermostat Kit
• Temperature Rating: 140 degrees Fahrenheit
• Category: Westerbeke Generator Parts
• Product Dimensions: 6 x 2 x 6 inches
• Weight: 0.11 pounds
• UPC: 808282288822

Fitment

For select Westerbeke generator models.

Replaces (OEM)

• 35736
• 34196

Frequently Asked Questions

What temperature rating does the Sierra 223-3651 thermostat kit have? The Sierra 223-3651 Thermostat Kit is rated to open at 140 degrees Fahrenheit.

What generators is the Sierra 223-3651 thermostat kit designed for? This kit is designed for select Westerbeke marine generator models.

Does the Sierra 223-3651 replace Westerbeke part 35736? Yes, the Sierra 223-3651 Thermostat Kit replaces Westerbeke part number 35736.

Does the Sierra 223-3651 replace Westerbeke part 34196? Yes, it also replaces Westerbeke part number 34196, so either OEM number can be used to cross-reference this kit.

How much does the Sierra 223-3651 thermostat kit weigh? It weighs 0.11 pounds.

What are the dimensions of the Sierra 223-3651 thermostat kit? The product dimensions are 6 x 2 x 6 inches.

Is the Sierra 223-3651 a genuine OEM part or an aftermarket replacement? The Sierra 223-3651 is an aftermarket thermostat kit engineered to meet or exceed the specification of the original Westerbeke thermostat it replaces.

What is included in the Sierra 223-3651 thermostat kit? The kit is a complete thermostat kit for the applicable Westerbeke generator, sold as Sierra part number 223-3651.

What category of part is the Sierra 223-3651? It is classified as a Westerbeke Generator Parts item, specifically a thermostat kit.

Is Sierra 223-3651 covered under warranty? Sierra parts, including the 223-3651 Thermostat Kit, qualify for Sierra's customer satisfaction warranty covering defects in workmanship and materials for the useful life of the product.