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Sierra 18-2643 Upper Unit Seal Kit for Mercruiser Bravo & Blackhawk

Manufacturer

Sierra

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Part Number

18-2643
13 reviews
03/14/2036 8:51 AM
Sale Price

$107.82

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-2643 Upper Unit Seal Kit is a comprehensive seal and gasket kit designed for Mercruiser Bravo I, II, III, and Blackhawk stern drive upper gear cases. This complete kit contains all the seals, o-rings, gaskets, and springs necessary for upper unit maintenance and repair.

Key Features:

  • Complete upper unit seal kit with multiple o-rings, oil seals, and gaskets
  • Manufactured to meet or exceed OEM specifications
  • Includes drain screw gasket, outdrive seals, and check valve spring kit
  • Designed for professional-grade performance in harsh marine environments
  • Backed by Sierra's quality warranty for reliable durability

Kit Includes:

  • (1) 18-1240 Outdrive Seal
  • (1) 18-2010 Oil Seal
  • (1) 18-2516 Bravo Outdrive Seal
  • (1) 18-2715 Check Valve Spring Kit
  • (1) 18-2945 Drain Screw Gasket
  • Multiple O-Rings: 18-7102, 18-7105, 18-7117, (2) 18-7153, 18-7167, 18-7169, 18-7198, 18-7449

Replaces OEM Part Numbers: Mercruiser 26-16709A2, 26-16709A1, GLM 87480, Mallory 9-74301

Sierra Marine is a market leader in aftermarket marine engine parts, providing quality replacement components trusted by marine professionals and boat owners worldwide.

Wow, I ordered H&R springs for my Porsche and they arrived in 2 days and for 15 dollars cheaper then anyone else on the internet. Awesome place to shop and the live accurate inventory is how everyone should operate.

So far so good

The price is good, easy to fill out the required information, I hope the shipping is fast, paid for 2 days over night, need the part now.

Received order quickly. I had to return it because I ordered the wrong part. I would not hesitate to order from this company again.

Great product - prompt service - helpful customer relations - will use them again and recommend them to others

Just order the 1108 turn over ball for 2010 Super Duty and received it within (5) days. Just can't wait to put it on and start pulling the trailer with my new diessel.

Fast shipping, good communication, and cheap prices means I'm going to buy more in the future.

good price on intake.shipping to high on other items

Ordering was easy. Hope the part fits.

Good selection

great

Easy and quick payment methods!

Quick, Friendly & Easy site to use. Would use them again.

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