MercAftermarkets Outboards, Sterndrives and much more!

MercAftermarkets wants to make owning and operating your bass boat, Pleasure boat, Inboard / Outboard sterndrive fun and not costly! We have sought out the best parts with the best warranties in the industry to provide to our customers at the lowest prices! Customer service is our number one goal, we want to be sure we help all of our customers find the correct application that will keep them in the water not on the dock!

MercAftermarkets offers OEM and Aftermarket applications for Mercury, Johnson, Yamaha, and Evinrude Outboard Lower units, as well as Mercruiser Alpha and Bravo Sterndrives. We also carry a wide selection of Powerheads, and 3 and 4 blade props. We want to be your one stop shop for all of your propulsion needs.

We also own ATVaftermarkets ( which offers ATV and UTV tires, wheels and accessories, stop by today to dress your ATV or UTV with the latest and greatest wheels and tires from ITP, MSA, GBC, Maxxis, Kenda, and many others.

MercAftermarkets Inc. Is not affiliated with Sterndrive Engineering Inc, We carry all of SEI's products and are a factory authorized dealer, but in no way represent SEI as a company. All warranties expressed are through SEI and not MercAftermarkets Inc. Any warranties implied are through the respected manufactures.

Note about Gear cases - Yamaha Lower Units - If specified from SEI marine is entirely an aftermarket case built by SEI. If it states a regular yamaha case it is built by OBR Marine - with both OEM and Aftermarket parts. This will be shown with a part number starting with YA-G6

Mercury Cases - Mercury Aftermarket cases are built by SEI marine - Carry a 3 year fault free warranty - Mercury OEM units are directly from Mercury Marine.

Mercruiser units - Mercruiser Aftermarket units are built by both OBR marine and SEI Marine - Our OEM units are directly from Mercury Marine.

Johnson / Evinrude Cases - our aftermarket johnson and evinrude cases are built by both OBR marine and SEI Marine.

Mercury, Johnson, Yamaha Powerheads are built by OBR marine using new OEM and Aftermarket parts.

If you have questions regarding any of our cases, please dont hesitate to call.



eBay - Would you like to visit our store on eBay, No problem, Simply Click on the link below

MercAftermarkets eBay Store

eBay username - MercAftermarkets


Do you have questions - Give us a call today 423-213-4471

Feel Free to email us as well

or are you in the area, swing by and visit with us


MercAftermarkets Inc.

4451 North Roan Street #107

Johnson City, TN 37615

(behind Dave's Waves)


Thank you for your business,

Keith Livingston - President / MercAftermarkets Inc.