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Sierra 18-4436 Powerhead Gasket Set for Nissan/Tohatsu 90 HP Outboard

Manufacturer

Picture for manufacturer Sierra

Part Number

18-4436
14 reviews
Sale Price

$90.44

1 left at this price

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Usually delivered within 2 days

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Product Details

The Sierra 18-4436 Powerhead Gasket Set is a comprehensive replacement gasket kit engineered for Nissan and Tohatsu 90 HP outboard engines (all models). This complete set provides everything needed for a full powerhead reseal or rebuild, delivering a reliable OEM-quality fit at an aftermarket value.

Sierra manufactures this gasket set to meet or exceed the original equipment specifications it replaces, ensuring proper sealing and long-lasting performance. It is a direct replacement for Nissan/Tohatsu OEM part numbers 3B7-87121-1 and 3B7-87121-7 (stainless steel variant).

Kit Includes:

  • 1x Cylinder Head Gasket
  • 1x Cylinder Head Cover Gasket
  • 1x Thermostat Cap Gasket
  • 2x Exhaust Cover Gaskets
  • 1x Blind Plate Gasket
  • 2x Inlet Manifold Gaskets
  • 3x Air Silencer Gaskets
  • 1x Air Silencer Cover Gasket
  • 3x Carburetor Gaskets
  • 3x Check Valve Gaskets A
  • 3x Check Valve Gaskets B
  • 1x Engine Base Gasket

OEM Cross-Reference: Replaces Nissan/Tohatsu part numbers 3B7-87121-1 and 3B7-87121-7.

Sierra International is a trusted name in marine aftermarket parts, and each component in this set is built to meet or exceed original equipment standards — making the 18-4436 an ideal choice for professional technicians and experienced DIY marine mechanics alike.

very nice web site and easy to order with good pictures, quick delivery overall had a great experience with Autoplicity

This is my first order with you , so I will see how it goes.

Found you on ebay, best deal on the part I was looking for!

Would like some idea if the part is in stock and not on back order.

Arrangement of checkout field sets is counter-intuitive. I almost bailed twice.You should consider consulting a UX expert to streamline your user experience.

I received my parts when I needed them by and they were quality parts.

thank you, quick easy. Great prices!

Easy to use site

fast shipping

I loved how easy it was to find the product and the price was amazing, half the price of other sites. It was so easy to checkout, I will definitely come here again.

Good so far

Amazon pay nice

Order Number: 17562<br>I have delt with Autoplicity several times. They have great prices, always ship fast and have great communation. I always check to see if they have what I am looking for before I look some where else.

QUICK AND EASY

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