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Quicksilver 59078 Replacement Marine Thermostat 140°F MerCruiser

Manufacturer

Picture for manufacturer Quicksilver

Part Number

59078
12 reviews
Sale Price

$29.43

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Quicksilver 59078 is a 140°F replacement marine thermostat designed to OEM specifications for select MerCruiser sterndrive engines. Produced by Mercury Marine, this thermostat ensures proper engine operating temperature, protecting against overheating and premature wear in demanding marine environments.

Key Features:

  • 140°F (60°C) opening temperature — maintains optimal engine operating range
  • Built to original equipment manufacturer (OEM) specifications for precise fit and reliable performance
  • Compatible with MerCruiser 120hp 2.5L engines (serial No. 2324347 and above) with cast iron exhaust manifolds
  • Compatible with MerCruiser 140hp 3.0L engines (serial No. 0L340999 and below)
  • Compatible with MerCruiser 165hp engines
  • Installs with common hand tools — refer to your engine's service manual for proper procedure
  • Manufactured under Mercury Marine's stringent quality and testing standards

Quicksilver has been the premier supplier of Mercury Marine original equipment replacement parts, oils, and accessories for over 65 years. When replacing a thermostat on your MerCruiser sterndrive, choosing an OEM Quicksilver part ensures correct calibration, proper coolant flow, and long-term engine reliability.

I ordered a black bull bar for my Tacoma and for the price of $127, I couldn't pass up on it because it would have costed me $170 elsewhere. Overall, it shipped in 3 days, great product, great price ... thinking of shopping again!

Good

Lowest prices I found on the net and great customer service! Fast shipping too!

ill tell you when i get the product

Fast shipping and the lowest price. Very impressed.

I saved over a hundred$ on a set of electric cooling fans. so the prices r great but it took 4 days to process and ship my order so well see how long it takes to get here but overall I would rather save money than get fast shipping

Easy ordering and checkout

Google searching produced this company as the lowest price on a set of spark plug wires. I like to deal with eBay, but I decided to try it out. Though the shipping was a bit more than Google estimated, it was still the lowest price! The item shipped quickly and was perfect with plenty of communication. Great seller!

On time...parts as described.

I share how I feel when the transaction is complete.

good price , easy to order

Absolute lowest retail price and lightning fast shipping. What more can you ask?

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