Quicksilver 8M6010304 143°F Thermostat for Evinrude Johnson OMC 2-Cycle 60-70hp Outboards

The Quicksilver 8M6010304 is a 143°F replacement outboard thermostat engineered for select 2-cycle 60–70hp Evinrude, Johnson, and OMC outboard motors. Built to Quicksilver's OEM-grade standards, this thermostat helps your engine maintain proper operating temperature—protecting against the overheating and inefficiency caused by a sticking or failing thermostat.

This is a single-piece, Vernatherm-style thermostat designed as a direct-fit replacement that meets all original equipment manufacturer specifications. It is a thermostat-only replacement; installation hardware, gaskets, and seals are sold separately.

Part Number Cross-Reference:

• Replaces OEM part number: 436195
• Aftermarket cross-reference: 18-3561

Key Features:

• 143°F (61.7°C) opening temperature for precise engine temperature regulation
• Single-piece Vernatherm-style design for reliable, consistent performance
• Engineered to meet all OEM specifications
• Compatible with select 2-cycle 60–70hp Evinrude, Johnson, and OMC outboards
• Thermostat only — hardware, gaskets, and seals sold separately

Consult your engine's owner's manual or service manual to confirm correct application and for proper installation procedures.