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Sierra 18-43015 170-Degree Thermostat for MerCruiser MPI Stern Drive Engines

Manufacturer

Picture for manufacturer Sierra

Part Number

18-43015
7 reviews
Sale Price

$24.49

1 left at this price

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-43015 is a 170-degree replacement thermostat engineered for MerCruiser MPI stern drive engines equipped with dry joint exhaust and closed cooling systems. Designed to meet or exceed OEM specifications, this Sierra thermostat delivers reliable engine temperature regulation to protect your marine engine and maintain optimal performance on the water.

Sierra International is a leading manufacturer of aftermarket marine engine parts, trusted by boaters and technicians for quality components that match original equipment standards.

Key Features:

  • Temperature Rating: 170°F
  • Direct OEM replacement — replaces Mercury Marine part #864493
  • Engineered for closed cooling systems with dry joint exhaust
  • Designed to meet or exceed original equipment specifications
  • Backed by Sierra's comprehensive parts and labor warranty

OEM Cross-Reference: Replaces Mercury Marine #864493

Had exactly what I needed

very easy to locate what i was looking for with excellent prices

So far GREAT. Best price for sure and free shipping is also AWESOME!!!

quick

Quick, easy & reliable.

Good user interface

It was god

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