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Sierra 18-3891 Marine Cylinder Head Gasket for Yamaha Outboard

Manufacturer

Sierra

Picture for manufacturer Sierra

Part Number

118-3891
9 reviews
05/01/2036 6:16 PM
Sale Price

$48.22

1 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Sierra 18-3891 is a premium marine cylinder head gasket engineered specifically for Yamaha outboard motors. This critical engine sealing component creates a reliable seal between the cylinder head and engine block, preventing coolant and oil leaks while maintaining proper compression.

Key Features:

  • Meets or exceeds OEM specifications for reliable performance
  • Precision-engineered for proper fit and function on Yamaha outboards
  • High-quality construction designed to withstand marine environment conditions
  • Includes one gasket per package

OEM Cross-References:

  • Mallory 9-63950
  • Yamaha 61A-11181-00-00
  • Yamaha 61A-11181-A0-00
  • Yamaha 61A-11181-A1-00
  • Yamaha 61A-11181-A2-00
  • Yamaha 69L-11181-00-00
  • Yamaha 69L-11181-01-00

Sierra has over 50 years of experience producing marine engine parts that meet or exceed manufacturer specifications. This gasket is designed to restore your engine's sealing integrity to factory standards, ensuring reliable operation on the water.

Need a taller Springfield plug-in post for pontoon boat to create a small grill table. You had the best price at the time . Item arrived and is a perfect fit. Very happy customers! Will consider your company for any further boat items.

good

First time ordering from here. Seems to be a good company. The part was decently priced. Shipping was super fast. It was expensive but worth it in the end because I needed the part before a tournament

Great service

good easy

Only issue I had was on the credit card statement, was confusing to have an order from Autoplicity.

1st time buyer, hope its a full set of springs and fast shipping

Y

Good price. Quci and easy ordering with fast delivery

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