Sierra 18-3662 Marine Thermostat Kit for Volvo Penta Stern Drive - Replaces Volvo 875794-0, 876305-4

The Sierra 18-3662 Thermostat Kit is a replacement engine cooling thermostat kit built for Volvo Penta stern drive applications. It is designed as a direct equivalent to the original Volvo Penta thermostat, allowing boat owners and marine technicians to restore correct engine operating temperature control without sourcing OEM parts through a dealer. The kit is packaged as a complete unit ready for installation in place of a worn or failed thermostat, helping the engine reach and maintain proper operating temperature for efficient combustion and reliable cooling system performance.

This thermostat kit is sold under Sierra part number 18-3662 and is cross-referenced to Volvo Penta OEM numbers 875794-0 and 876305-4, so it can be ordered using either the Sierra number or the original Volvo part numbers. It is intended for Volvo Penta stern drive engines and ships as a single unit (quantity of one).

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-3662
• Product Name: Thermostat Kit
• Application: Volvo Penta Stern Drive
• Weight: 0.14 pounds
• Unit Count: 1
• UPC: 030999316257
• GTIN: 00030999316257
• Warranty: Limited warranty

Fitment

Fits Volvo Penta stern drive applications.

Replaces (OEM)

• Volvo 875794-0
• Volvo 876305-4

Frequently Asked Questions

What engines does the Sierra 18-3662 thermostat kit fit? The Sierra 18-3662 Thermostat Kit is designed for Volvo Penta stern drive applications.

Is the Sierra 18-3662 a direct replacement for the Volvo Penta thermostat? Yes, Sierra part number 18-3662 is cross-referenced to Volvo Penta OEM numbers 875794-0 and 876305-4, so it installs as a direct equivalent to those original thermostats.

What OEM part numbers does the 18-3662 kit replace? It replaces Volvo Penta numbers 875794-0 and 876305-4.

How much does the Sierra 18-3662 thermostat kit weigh? The kit weighs 0.14 pounds.

How many thermostats are included in the Sierra 18-3662 kit? The Sierra 18-3662 Thermostat Kit ships as a single unit, a quantity of one thermostat kit.

Can I order this part using the Volvo Penta part number instead of the Sierra number? Yes, because the Sierra 18-3662 cross-references directly to Volvo 875794-0 and 876305-4, ordering by either the Sierra number or those Volvo numbers will get you the same kit.

Is the Sierra 18-3662 genuine Volvo Penta or aftermarket? The 18-3662 is a Sierra-branded aftermarket thermostat kit manufactured as a replacement for Volvo Penta thermostats 875794-0 and 876305-4, not an original Volvo Penta part.

What is included with the Sierra 18-3662 thermostat kit? The Sierra 18-3662 is sold as a complete Thermostat Kit, packaged as one unit ready for installation in a Volvo Penta stern drive engine.

Does the Sierra 18-3662 come with a warranty? Yes, the Sierra 18-3662 Thermostat Kit is backed by a limited warranty.

What is the UPC for the Sierra 18-3662 thermostat kit? The UPC for the Sierra 18-3662 Thermostat Kit is 030999316257.