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Sierra 18-0643 Powerhead Base Gasket for Marine Outboard Engines

Manufacturer

Picture for manufacturer Sierra

Part Number

118-0643
5 reviews
Sale Price

$16.55

3 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 18-0643 Powerhead Base Gasket is a precision-engineered replacement gasket designed for marine outboard engine powerhead assemblies. This critical sealing component creates a reliable seal between the powerhead and the engine block, preventing water and oil leaks while maintaining proper compression.

Key Features:

  • Premium marine-grade gasket material for superior durability in harsh saltwater and freshwater environments
  • Precision-cut design ensures proper fit and reliable sealing performance
  • Replaces OEM part number 18-0643 for direct fitment
  • Manufactured to meet or exceed OEM specifications
  • Essential component for powerhead rebuild and maintenance procedures

Sierra Marine is a trusted aftermarket supplier of marine engine parts, known for quality replacement components that deliver reliable performance. This powerhead base gasket is an essential part for maintaining proper engine sealing during overhaul and repair work.

Looks nice ! Packaged well.

Nice website

I did not receive mounting hardware and had to buy my own. Chatted with customer service and they said they would inform the warehouse. Nothing happened.

Great Service

K

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