Powerhead to Bottom Cowl Gasket

This item for sale is a brand new Powerhead to Bottom Cowl Gasket for Mercury & Mercury Mark Outboard Motors.
Mercury & Mercury Mark Outboard P/N: 20390

Fits:
300 350 S/N: 1271884 THRU 1448139
400 S/N: 1279685 THRU 1476509
450, 45hp (4 CYL.) S/N: 1476510 THRU 1531568
500 S/N: 1421113 THRU 1639472
500 S/N: 1639473 THRU 1755548
MARK 30, 30E S/N: ALL
MARK 30H, 55H S/N: ALL
MARK 35A S/N: ALL
MARK 50, 50E S/N: ALL
MARK 55, 55E S/N: ALL
MARK 55AE, 55AM, 58AE, 58E S/N: ALL

About Us

Doug Russell Marine was founded in 1956 and is located west of Boston in Worcester, Massachusetts

Under the same ownership for over 60 years, we have continued to provide the finest products and service in the industry. Doug Russell Marine maintains one of the most extensive parts department in the world with more than 100,000 parts, and over 1,000 sterndrives and engines in stock! With such names as Mercruiser, Volvo Penta, OMC, Johnson/Evinrude, and Yamaha Outboards, we have come to be known around the globe for sterndrive and engine repower. We are also pleased to offer Sea Doo Personal Watercraft, Avalon Pontoon Boats, along with Karavan and Venture Trailers. Backed by these brand names and over 60 years experience, we continue to offer the best brands in the business.

Over the years we have acquired the knowledge, experience and inventory second to none. Our profound buying power gives us the ability to offer the best prices in the industry. Nobody comes close. Our factory trained technicians and dedicated sales staff are passionate about their work. We pride ourselves in taking the time to work with each individual, to ensure you are properly matched within your budget and technical needs. Not only will you get the best possible price, but you will also have exceptional service & consultation before, during and after the sale.