Worldwide Leader in Outboard Extension Kits Since 1963

With a proper install and paint job of our Outboard Extension Kit, your Outboard Motor will look and perform as if it was originally manufacturered at the extended shaft length!

5″ Outboard Extension Kit

5″ Outboard Extension Kit

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Reduce Inventory And Close Sales For Outboard Dealers

Bay Outboard Extension Kits cut dealer inventory in half. A large outboard motor inventory of every length is no longer needed after doing an outboard conversion with a Bay Long Shaft Kit. Short shaft outboard motors can be sold as long shaft or extra-long shaft with a Bay Outboard Extension Kit. Easily convert back.

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Improved Outboard Motor Performance For All Customers

Bay Outboard Extension Kits convert outboard motor shaft length ensuring optimal propeller depth to eliminate cavitation and improve fuel efficiency. If the motor is too high in the water, it may draw in air instead of water, leading to cavitation which can cause a loss of power, reduce efficiency, and motor damage.

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Saves Customers Money And Provides Them With Flexibility

Bay Outboard Extension Kits cost a fraction of the factory parts alone to convert outboard motor drive shaft length from short to long or extra-long shaft. Converting a motor to a different shaft length provides customer with flexibility to move their motor to a new boat and save the cost of having to buy a new one.

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Same Quality As Manufacturer For Lifetime Performance

Bay Outboard Extension Kits are designed and manufacturered of top-quality materials to give lasting reliability to your outboard motor conversion. All shafts and studs are stainless steel and housings are cast of the same series alloy as the motor for maximum corrosion resistance and lifetime performance

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Rapid Install With Innovative 5″ Stub Drive Shaft

Bay Outboard Extension Kits novel 5″ stub drive shaft enables outboard motor conversion to any shaft length without needing to tear apart the lower drive unit. For outboards that have been operating in saltwater, it is nearly impossible to tear apart the lower unit and replace the full shaft which our approach avoids.

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Proven Reliability With 60+ Years Of Successful Installs

Bay Manufacturing is the original manufacturer of Outboard Extension Kits dating back 60+ years to 1963 and has perfected the product and service over that timeframe. We’re one of few companies who can say they’ve sold thousands of marine products and those products have performed successfully over multiple decades.