OMC Upper Unit 21:21 Ratio

Picture not actual unit for sale

Fits: OMC Upper Unit up to 1993
OEM #987064 

21/21 ratio

Remanufactured
1 Year Warranty 

Outdrives rebuilt by Certified Mechanics 
OEM Parts

Price=$1,495 plus $250 refundable core*= $1,745

*See our Core Policy for details on how to recycle your core & receive your core deposit back.

Call 913-342-0011 for assistance. Please have your engine serial number available if possible.

Find your serial number here.

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US Boatworks- Quality Sterndrive Remanufacturing for over 35 years.

David Beckman
David Beckman
2020-06-04
They went above and beyond to make certain my online order was understood by phoning me to gather more detailed information to ensure I received the correct part for my specific older (1988) outboard. This is the kind of customer service I thought was lost with online orders these days So hats off to the guys at Kansas City US Boatworks.
Trevor F
Trevor F
2020-06-02
Super nice staff. The guy at the parts counter even went over how to install my part for my boat. Can't beat service like that
Matt Murray
Matt Murray
2020-05-27
Very knowledgeable, very nice and had exactly what I was looking for. Will go back.
Michael Vogel
Michael Vogel
2020-05-22
Matt S
Matt S
2020-05-16
I was very happy to discover a local store with great knowledge, inventory and fair prices! While restoring a 1982 Mercury motor, I was shocked and ecstatic to discover they had the parts I needed in stock!