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Sierra 18-2681 Lower Unit Gear Housing Seal Kit for Johnson/Evinrude Outboards

Manufacturer

Picture for manufacturer Sierra

Part Number

18-2681
13 reviews
Sale Price

$48.11

3 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 18-2681 is a complete lower unit gear housing seal kit engineered specifically for Johnson/Evinrude 6HP outboard motors from 1968 to 1979 (1968 models with "A" and "R" suffixes only). This all-in-one kit provides everything needed to reseal and rebuild the lower unit gearcase, restoring watertight integrity and protecting internal gear components from water intrusion and lubricant loss.

Key Features:

  • OEM-quality construction engineered for precise fit, form, and function
  • Meets or exceeds original equipment specifications
  • Replaces GLM part number 87617
  • Manufactured in the USA (assembled in Sierra's Illinois facility)

Kit Contents:

  • Oil Seal (18-2023) — replaces OEM #313282
  • Oil Seal (18-2024) — replaces OEM #314167
  • Bearing Housing Gasket (18-2891) — replaces OEM #303339
  • Washer (x2) — replaces OEM #311598
  • O-Ring (18-7100) — replaces OEM #301877
  • O-Ring (18-7117) — replaces OEM #303360
  • O-Ring (18-7120) — replaces OEM #307853
  • Spaghetti Seal — replaces OEM #309044
  • Drain/Fill Plug Washers (18-4248) — sold per package of 5

OEM Cross-Reference Part Numbers:

  • Johnson/Evinrude: 313282, 314167, 303339, 311598, 301877, 303360, 307853, 309044
  • GLM: 87617

Sierra International is a leading supplier of marine engine and drive parts with over 50 years of industry experience. All Sierra seal kits are designed to meet the exacting standards of the original equipment they replace, making the 18-2681 a trusted choice for maintaining vintage Johnson and Evinrude 6HP outboard lower units.

looks like what I need

Awesome website easy to use and no looping!

very good

first time on site .was easy to figure out

Easy to find on your website

That was SO EASY! No sign-ups or info to fill out (used Amazon Payments), so I had plenty of time to write this review!

The only recommendation I have is to include the position in the description for brake pads. I had to check another site to verify front vs. rear pads. It's not a major issue, especially because you have some of the best prices on these pads.

Auotplicity had the lowest prices and S&H online. I will shop here again. Thanks Derek!

I had just bought a body lift and spacer for truck, and sure enough it all came in a timely fashion. This site is a great one to check out if you need any parts. Easy access, quick processing, I believe this is the,site ill use fot now on.

Looking forward to having AC again!

Autoplicity is awesome! Easy check out and quick shipping! Will buy from again!

Easy going

Ordering was simple and shipped quickly. Received undamaged and exactly what i ordered. will order from them again.

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