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Sierra 18-2957 Cylinder Head Gasket for Johnson/Evinrude Outboard Engines

Manufacturer

Picture for manufacturer Sierra

Part Number

18-2957
13 reviews
Sale Price

$30.57

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 18-2957 Cylinder Head Gasket is a precision-engineered marine replacement head gasket designed for Johnson and Evinrude 2-cylinder outboard engines. This gasket provides a reliable cylinder head-to-block seal, helping to maintain proper compression and prevent coolant or combustion gas leaks in demanding marine environments.

Key Features:

  • Direct replacement for OEM part number 307069 (also cross-references GLM 35990 and Redline RL2957)
  • Engineered to meet or exceed original equipment manufacturer specifications
  • Designed to withstand the harsh conditions of the marine environment
  • Ensures proper cylinder head sealing for optimal engine performance and compression
  • Compatible with Johnson/Evinrude 2-cylinder 40 HP outboard engines

Sierra International is a trusted supplier to OEM engine manufacturers and boat builders, delivering quality marine parts built to perform. The 18-2957 is a reliable, cost-effective alternative to the factory head gasket, making it an ideal choice for engine rebuilds, top-end service, or head gasket replacement on eligible Johnson and Evinrude outboards.

OEM Cross-Reference Numbers: 307069, GLM 35990, Redline RL2957

Best prices that I could find. Quick shipping

After reporting my order was on back order with 4-6 weeks to deliver. You guys found a way to get it to me in a weeks time. Super!!!! Great job. Thank you Peter

Best prices online for hard to find parts!

My first experience with Autoplicity has been great. One of the best prices I found for the item. Too, the company is not secretative about itself such as another parts discounter.<br><br>Autoplicity is now "bookmarked" for future purchases!

Found exactly what I wanted

Great prices.

quick and easy

I found parts for my car from google shopping and wanted to verify that everything was correct before order. I call the phone number and somebody picked right up and checked on everything for me. A++ seller. Thanks Autoplicity!

Search is fast and easy. Prices are amazing!

Product was cheapest I could find and shipping was super fast. Not sure how you could go wrong with them.

good

Very fast service order arrived next day after they shipped it.<br>product looked great except for the bottom bolt brackets were slightly bent but that could have happened during shipment. Otherwise I'm happy with the transaction!

a lot of their parts are the lowest price you can find. they will always be on my list of autopart dealers for every build

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Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy