Quicksilver 8M6010305 Johnson Evinrude 90-170 HP Thermostat 143°F

Quicksilver 8M6010305 Johnson Evinrude 90-170 HP Thermostat 143°F

Quicksilver 8M6010305 replacement thermostat helps regulate engine cooling temperature in compatible Johnson/Evinrude/OMC engines.

Key Features

• Quicksilver replacement cooling-system component.
• Designed to meet OEM specifications for a 143°F thermostat.
• Thermostat supplied individually.

Fitment & Applications

Selected Johnson, Evinrude and OMC V4 and V6 90–170 HP 2-stroke outboards.

Confirm the engine model, serial number and parts diagram before ordering. A listed horsepower or displacement range does not establish universal fitment.

Replacement References

Replaces Johnson/Evinrude OEM 435491; aftermarket reference Sierra 18-3544. Quicksilver lists supersession from 8M0175329.

Product Details

• Brand: Quicksilver.
• Manufacturer part number: 8M6010305.
• Temperature specification: 143°F.
• UPC: 678633134456.
• Package: one thermostat.

What's Included

• Thermostat only.

Installation hardware, gaskets and seals are sold separately.

Service Notes

Use the engine service manual for installation, required sealing parts and tightening specifications. Inspect the cooling system and address the cause of an overheating problem.

Why You Should Buy

Choose the specified Quicksilver replacement for a compatible cooling-system service application.

Common Applications

Replacement of a thermostat identified as requiring service in an engine that specifies this part.

FAQ

What is supplied?
One thermostat only.

Will it fit every engine in the listed range?
No. Verify the exact engine model and parts reference before ordering.