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Sierra 18-3703 Propeller Nut for Mercury Mariner Outboard 9.9-25 HP

Manufacturer

Sierra

Picture for manufacturer Sierra

Part Number

18-3703
12 reviews
03/13/2036 11:52 PM
Sale Price

$6.34

In Stock (10+)

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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 18-3703 is a precision-engineered propeller nut designed specifically for Mercury and Mariner outboard engines. This molded nylon prop nut provides secure propeller retention and reliable performance in marine environments.

Application:

  • Mercury/Mariner 9.9-25 HP outboards (1986 and newer)
  • Mercury 18/20/25 HP 2-cycle engines (1980 and newer)
  • Mercury F9.9/15 four-stroke engines
  • Mercury 323cc Bigfoot four-stroke outboards

Key Features:

  • Durable molded nylon construction for corrosion resistance
  • Direct OEM replacement part for reliable fitment
  • Meets or exceeds original equipment specifications
  • Simple installation on compatible outboard motors

Cross-Reference Numbers:

  • Mercury Marine OEM 11-88228
  • Chrysler/Force/US Marine 11-88228
  • GLM 21242
  • Mallory 9-73963
  • Sears 11-88228

Sierra International is a trusted name in marine engine parts, manufacturing high-quality replacement components that deliver dependable performance season after season. This propeller nut is an essential hardware component for maintaining your outboard's propeller system.

Great

They had what I needed, No hassle ordering. and it shipped fast.

So far so good thank you

When I get my product I will comment

Great price!

Great prices, always have inventory when I need it.

so far so good every thing was just as it should be - good work

Searched local and web stores for an Exedy clutch kit. Even with shipping, Autoplicity beat the others on price. They are an Amazon seller so I was not as concerned about buying from them as I usually am when buying things on the web.

very customer friendly

Lowest price for the part, 1/2 the shipping of others. Ordered Monday nite here on Thursday. The right part. Things are good.

Excellent service. I called in Monday for a hard to find item which I had ordered from several other online shops who despite saying were In Stock online were not actually in stock at all and the orders were canceled after waiting a week to find out. They had the item in stock as listed on their website and shipped the next day. The price was the cheapest of anyone who actually had the item in stock by a substantial amount.

Uhh if I get what I ordered I'll be happy

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