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Sierra 18-1551 Complete Gear Set V6 1.87:1 Ratio MerCruiser Stern Drive

Manufacturer

Picture for manufacturer Sierra

Part Number

18-1551
13 reviews
Sale Price

$462.18

1 left at this price

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Usually delivered within 2 days

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Product Details

The Sierra 18-1551 is a complete lower unit gear set designed for V6 MerCruiser stern drive applications. Featuring a 1.87:1 gear ratio, this kit includes the pinion gear and forward gear needed for a thorough lower unit rebuild or gear replacement. It is a direct aftermarket replacement for Mercury/MerCruiser OEM part number 43-803615T2.

Sierra parts are engineered to meet or exceed original equipment manufacturer (OEM) specifications, ensuring reliable performance and long service life in demanding marine environments.

Key Features:

  • Complete V6 gear set with 1.87:1 ratio
  • Includes pinion gear and forward gear
  • Replaces Mercury/MerCruiser OEM part number 43-803615T2
  • Meets or exceeds OEM quality standards
  • Designed for MerCruiser V6 stern drive lower units

Always verify part compatibility by cross-referencing Sierra part numbers and OEM numbers before installation. Engineered by Sierra International, a trusted name in aftermarket marine parts.

The engine oil dipstick was the wrong one for my car. Perhaps their automotive model database needs to be updated.

Great site, Thanks

Great price and really fast shipping. Great communication as well.

I've looked for 2 days and could Not find a better price along with the shipping price and guarantee can't beat it thanks

sell my email!

Came back because of prices. Satisfied customer

Price was right!

Quick to ship. No complaints here.<br>

if this is the right part, I will be very pleased

Autoplicity has an abundance of name brand parts at unbeatable prices. Customer service was also great to deal with. Receipt and tracking info was provided promptly.

Excellent prices and easy searching.

Smooth process and easy to follow instructions for checkout

very easy transaction

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