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Sierra 18-3829 Marine Cylinder Head Gasket for Yamaha Outboard Motors

Manufacturer

Picture for manufacturer Sierra

Part Number

18-3829
13 reviews
Sale Price

$34.71

1 left at this price

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Usually delivered within 2 days

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Product Details

The Sierra 18-3829 is a replacement cylinder head gasket engineered for Yamaha 2-stroke outboard motors. Designed as a direct OEM replacement, this head gasket restores a reliable seal between the cylinder head and engine block, helping to maintain proper compression and prevent coolant or combustion gas leaks.

Key Features:

  • Direct replacement for Yamaha 25–30 HP 3-cylinder outboard engines (1986 and later)
  • Replaces Yamaha OEM part numbers: 6J8-11181-00-00, 6J8-11181-A0-00, 6J8-11181-A1-00, and 6J8-11181-A2-00
  • Cross-references with Mallory 9-63965 and GLM 34920
  • Manufactured by Sierra International to meet or exceed original equipment specifications
  • Precision-formed gasket material ensures a consistent, leak-free seal

Cross-Reference Part Numbers:

  • Sierra: 18-3829
  • Yamaha OEM: 6J8-11181-A2-00
  • Mallory: 9-63965
  • GLM: 34920

Sierra International is a trusted manufacturer of marine engine parts, offering a comprehensive line of aftermarket components that meet rigorous quality standards. The 18-3829 head gasket is ideal for engine rebuilds, top-end overhauls, or any repair requiring replacement of the cylinder head gasket on compatible Yamaha outboard powerheads.

Autoplicity shipped on time as promised and the product arrived in perfect condition.

Easy to make purchase options and update to checkout

great !

Quick and Easy

Thanks

Great site for just about anything Automotive unbeatable prices, lightening fast turnaround, what more could you ask for?

Great pricing on this item and free shipping. I just wish they offered free shipping on entire order when spending this much.

so far so good

very easy to find the parts I needed, parts are in stock, best price on the net!

its good

Thanks.

good prices good store

By far the cheapest set of headers & x-pipe for my car on the market! They got them out the door first thing & sent me emails so I could track them. Very happy with this quality of service.

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