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Sierra 18-3151 Water Coupling Assembly

Manufacturer

Picture for manufacturer Sierra

Part Number

118-3151
7 reviews
Sale Price

$11.27

1 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 18-3151 Water Coupling Assembly is a precision-engineered replacement component designed for marine stern drive and outboard engine cooling systems. This essential coupling assembly connects water tubes and passages to ensure proper water flow through the engine cooling system.

Key Features:

  • Direct replacement for MerCruiser OEM part number 816597A1
  • Compatible with Alpha One Gen II stern drives (1991-2019)
  • Fits Vazer Drive and Vazer Transom applications (1998)
  • Also compatible with select Mercury Marine 200-250 HP outboard engines (1994-1998)
  • Cross-references GLM 12041, GLM 12824, and Mallory 9-78110
  • Manufactured by Sierra Marine to OEM specifications

This water coupling assembly is a critical component in maintaining proper engine operating temperature. Sierra Marine parts are known for their quality construction and reliable performance in demanding marine environments.

Quick shipping

Seems ok

All good so far

Easy to find what I needed, killer price + reasonable shipping

I got an exact replacement for the anchor pulley I broke so I could use the same mounting holes on my boat.

Fast and easy!

Shipped quickly and packaged well

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