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Sierra 18-0550 Exhaust Manifold Plug Off Cap 1-1/4 Inch OMC

Manufacturer

Sierra

Picture for manufacturer Sierra

Part Number

18-0550
14 reviews
03/12/2036 8:03 PM
Sale Price

$11.05

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Sierra 18-0550 is a rubber plug-off cap designed to cap exhaust manifold nipples on OMC marine engines. This cap features a 1-1/4 inch inside diameter and is engineered to provide a reliable seal in harsh marine environments.

Key Features:

  • 1-1/4 inch (31.8mm) inside diameter for secure fit
  • Durable rubber construction for long-lasting performance
  • Designed specifically for OMC exhaust manifold applications
  • Engineered to meet or exceed OEM specifications

Application:

Compatible with V-8 stern drives and inboards from 1977 to present. Fits OMC replacement manifold parts OMC-1-912441 and OMC-1-912442. Also used on Crusader early style thermostat housing.

Replaces OEM Part Numbers:

  • OMC 909830
  • OMC 764799
  • OMC 3852476
  • Mercury 878991
  • Mallory 9-42721

Sierra is a leading supplier of premium marine engine parts with over 50 years of experience in the marine industry. All Sierra products are manufactured to withstand the demanding conditions of marine environments while meeting or exceeding original equipment specifications.

Great prices! Had exactly what I was looking for, for $20 less than anywhere else even with the shipping cost added in.

Very easy

quick and easy. love the paypal checkout option

More Pontiac items

This my first time to purchase from this company and it was easy and fast. I will be back!!!

very fast

So far great!

Ordered 4 race ramps flatstoppers for winter storage of my Dodge Viper. Product prevents flat spots on auto tires that are stored more than 30 days. Order process was extremely easy, product was promptly shipped. I'll definately do business with Autoplicity in the future.

So far, a great shopping experience.

very fast shipping and very cheap prices

I was supposed to get 20% off shipping?

easy to use site, quick and easy, cant wait to get item. Coupon was a huge plus

Excellent service with the actual stock on hand, shipment was made the next day and a tracking number was provided. I have tried 2 other online supply stores which don't know what they have in stock.

Easy order placement, fast shipment

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