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Sierra 18-8307 Lower Main Seal Installation Tool for Outboard Motors

Manufacturer

Picture for manufacturer Sierra

Part Number

18-8307
13 reviews
Sale Price

$30.81

3 left at this price

delivery box

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 18-8307 is a purpose-built lower main seal installation tool designed to simplify the proper seating of lower unit seals on outboard motors. Using the correct installation tool ensures seals are driven in straight and to the proper depth, preventing damage to the seal lip and avoiding costly leaks or premature seal failure.

Key Features:

  • Designed specifically for lower main seal installation on outboard motors
  • Ensures precise, even seating of the seal without distortion
  • Helps prevent damage to seal lips during installation
  • Durable construction built to withstand repeated professional use
  • Part of Sierra's comprehensive line of marine specialty service tools

The Sierra 18-8307 is an essential tool for marine technicians and experienced DIY boaters performing lower unit service and rebuilds. Using a proper seal driver reduces the risk of seal damage compared to improvised methods, helping ensure a leak-free repair that lasts.

Well organized, easy to use site.

Super seller

excellent web site very easy to use and fast delivery

easy to buy if it fits

Super easy site to navigate, and fantastic prices.

quick and easy! had no problems at all

easy quick

Great price!

Seller is fast, selection is great, website is well organized. Prices are some of the best online and very competitive. Order # 12377 for J. Park

Easy checkout process

Autoplicity has some of best prices around and also ships extremely. Their customer service staff, either online or on the phone is also easily reachable and helpful!

Your website is a little clunky, but your prices are worth it :D The parts showed up on time and well packaged. I was a little freaked because I googled Autoplicity after I placed my order and saw some bad reviews online. My experience was fantastic. Keep

Simple

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