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Sierra 18-1234 One Piece Rear Main Crankshaft Seal for 7.4L / 8.2L Marine Engines

Manufacturer

Picture for manufacturer Sierra

Part Number

18-1234
10 reviews
Sale Price

$69.50

1 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-1234 is a replacement one-piece rear main crankshaft seal engineered for big block marine stern drive engines. Designed to meet OEM specifications, this seal provides a reliable, leak-free barrier at the rear of the crankshaft on 7.4L (454 cu in) and 8.2L (502 cu in) standard rotation marine engines used in MerCruiser, Volvo Penta, OMC, and Crusader applications.

Key Features:

  • One-piece rear main crankshaft seal design for simplified installation
  • Built to meet or exceed OEM specifications for fit and sealing performance
  • Compatible with standard rotation 7.4L / 454 and 8.2L / 502 big block marine engines
  • Direct replacement for Crusader, Mercury Marine, OMC, and Volvo Penta OEM part numbers

Replaces OEM Part Numbers:

  • Crusader: 7080030
  • Mercury Marine: 26-811554
  • OMC: 3853528
  • Volvo Penta: 3853528

Sierra International is a trusted manufacturer of marine engine replacement parts, offering extensive OEM cross-reference coverage for major marine brands. This rear main seal is an essential component for any engine rebuild or oil leak repair on applicable big block stern drive engines.

Fast shipping, great communication! Best price around.

Peachy so far. Price was right, received quickly and matched the OEM measurements. Satisfied customer.

Found the part I needed at a really good price

Lowest price around Basically next day delivery Will be back for more shopping

as long as part is not damaged when it gets here I will be happy

So far so good

Best price, easy purchase now lets see how quick they are on shipping.

Best price on internet. Local dealer wanted 325 dollars more for exact item. Great place to do business.

It was quick and easy to purchase and very easy to find the item I was looking for

I did a price comparison for hard-to-find Redline motor and tranmission oil of over 30 different vendors and websites through Amazon, E-bay, Google, etc. and Autoplicity had the best price by 25-30%. It was a no-brainer to order from them, and their website is easy search and manage. And their shipping charges aren't too bad either.

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