Top Pick Marine Thermostat 143° – Fits Johnson/Evinrude Outboard Motors (Replaces 436195)

Marine Thermostat 143° – Fits Johnson/Evinrude Outboard Motors (Replaces 436195)

This thermostat is designed to fit a wide range of Johnson/Evinrude 2-Stroke outboard engines from 5 to 300 HP (1993–2007) and select Yamaha 30–40 HP 4-Stroke models. It ensures your engine maintains the correct operating temperature for optimal performance and fuel efficiency.

This component is a direct replacement for multiple OEM and aftermarket part numbers, including BRP 0436195, 436195, 0777837; Sierra 18-79970, 18-3561; Mallory 9-43023; GLM 13150; and Yamaha 6BG-13915-00-00.

• Operating Temperature: Opens at a factory-set 143°F (61.7°C).
• Installation Type: Direct replacement for a hassle-free installation.
• Included Parts: Comes with one thermostat ready for installation.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Johnson/Evinrude owners, here’s a guide to help you identify your engine’s serial/model: Johnson/Evinrude Serial Number Guide.

Confirm your engine model/year in the table below. For Yamaha owners, here’s a guide to help you identify your engine’s serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.