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Sierra 18-1155 Ball Bearing for MerCruiser Stern Drive

Manufacturer

Picture for manufacturer Sierra

Part Number

118-1155
8 reviews
Sale Price

$35.61

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 18-1155 is a precision-engineered ball bearing designed specifically for reverse gear applications in MerCruiser stern drives and Mercury Marine lower units. This high-quality replacement bearing meets or exceeds OEM specifications, delivering reliable performance in demanding marine environments.

Key Features:

  • Direct replacement for Mercury OEM part numbers 30-88957A1, 30-88957, 30-35914, and 30-17927
  • Fits MerCruiser IA/IB/IC & EZ Shift, MC-I, R, MR, Alpha One and Gen II stern drives
  • Premium quality construction for extended service life
  • Manufactured to OEM specifications for proper fit and function
  • Ensures smooth gear operation and reduced friction

This bearing is interchangeable with GLM 21620 and Mallory 9-75114. Sierra marine parts are engineered to provide reliable performance and durability, making this an excellent choice for stern drive maintenance and rebuild applications.

great

That was easy to purchase

good

Great!

Cheap ain't good and good ain't cheap

Quick and simple

The part came the next day as expected and was put in my vehicle, and so far so good!!!

Ordering was easy and fast

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