SIERRA Yamaha Thermostat 140°F – 18-3541

Description

SIERRA Yamaha Thermostat 140°F – 18-3541

The SIERRA Yamaha Thermostat 140°F – 18-3541 is a fitment-specific marine engine cooling-system component intended for reliable service in the applications listed below. It is engineered as a direct replacement for the specified OEM configuration, helping restore proper cooling-water or coolant flow and reduce the risk of overheating.

• Fitment-specific yamaha thermostat 140°f for the engine or drive applications listed below
• Maintains the specified coolant operating-temperature set point when installed in the correct application
• Replaces the applicable OEM and aftermarket references shown in the specifications
• Marine-duty replacement components selected for the specified pump or thermostat configuration
• Verify engine model, model year, serial number and OEM reference before installation

During thermostat service, inspect the sealing surface and associated gasket or sealing ring, and confirm the replacement temperature rating matches the engine manufacturer requirement before reassembly.

Specifications

• Manufacturer: SIERRA
• Part Number: 18-3541
• Product Type: Yamaha Thermostat 140°F
• Applications: Yamaha outboard applications using the listed 66M/6G8 thermostat references; 140°F (60°C) rating
• OEM / Aftermarket Interchange:
  • Mallory: 9-43037
  • Yamaha Outboard: 66M-12411-00-00, 66M-12411-01-00, 6G8-12411-00-00, 6G8-12411-01-00, 6G8-12411-02-00, 6G8-12411-03-00
• Country of Origin: CN
• HS Code: 90321010