Sierra 18-3553 Thermostat for Johnson Evinrude Mercury Marine Outboard Engines

Manufacturer

Sierra

Part Number

18-3553
03/13/2036 1:19 AM
Sale Price

$16.98

In Stock (10+)

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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 18-3553 is a direct replacement thermostat designed for Johnson, Evinrude, and Mercury Marine outboard engines. This precision-engineered thermostat maintains optimal engine operating temperature by regulating coolant flow through the engine block.

Key Specifications:

  • Opening temperature: 143°F (61.7°C)
  • Direct OEM replacement quality
  • Corrosion-resistant construction for marine environments
  • Ensures proper engine temperature regulation

Maintaining the correct thermostat is essential for engine longevity and performance. A properly functioning thermostat prevents overheating while allowing the engine to reach optimal operating temperature quickly. Sierra Marine parts are manufactured to meet or exceed OEM specifications, providing reliable performance in demanding marine conditions.

Products specifications

Rating: Temperature

143°

Replaces

75692

It was good and my part arrived as promised

Very good

Very pleased will suggest your parts to everyone needing parts

easy to purchase.

No issues

thanks

Easy part search engine, easy order system and fast free delivery.

Great communication and fast shipping using FedEx Home. My packages can even be delivered on Saturday. Great prices on hard to find parts. I would definitely buy from again. Thanks

Easy ordering

Good job guy great parts

Ordered Borla headers 17216 that was lowest price on internet. Shipped fast at a fair price and arrived in good condition. Communication from Autoplicity was timley and accurate with tracking number. I would not hesitate to order from them again.

I ordered an Optima battery for my truck after I did a Google search for the battery. Autoplicity was the cheapest on the Web. Even cheaper then eBay. They got me hooked. Thanks Autoplicity

Parts fit perfect and arrived quickly. Did not realize rubber grommet came in package of two so now I have spares. Thermostats came in individual packages so assumed grommets do to. Surprise! It's all good as price was right!

Parts fit perfect and arrived quickly. Did not realize rubber grommet came in package of two so now I have spares. Thermostats came in individual packages so assumed grommets do to. Surprise! It's all good as price was right!

Fast shipping and great prices. Amazon Payments was a breeze to use.

quick & easy

Very please with first buying experience with Autoplicity! Not only did they have the best price, I promptly received the following e-mail message the next day after I ordered.<br><br>Hello brian willard!, <br>Good news! You order has been shipped. <br>Order Number: 1412<br>Order Details: http://autoplicity.com/orderdetails.aspx?orderid=1412<br>Date Ordered: Wednesday, December 21, 2011<br>Tracking Number: 1Z4XR0770346534081

Everything was fine except I had an issue at the checkout. I tried to pay with my American Express but could not as there was an AVS mismatch, but it worked with my master card. I am in Australia and had the items sent to and American address so I would a

I was genuinely impressed with their price for my item and truly happy with the speed of their shipping. I'll definately look forward to buying from Autoplicity in the future!

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