Welcome to US Boatworks, where keeping you on the water is our #1 priority. We specialize in lower unit replacement. If your looking for rebuilt or remanufactured lower units, you’ve come to the right place! Our seasoned team members are experts in gearcase building and we take pride in getting you back on the water quickly and affordably.
In all of Kansas City, there isn’t a friendlier or more knowledgeable staff than ours. We’re happy to help you with boat parts or boat repair you need. Check out our catalogs to find Mercury, Mercruiser, Mariner, Force, Evinrude, Johnson, OMC and Volvo parts. If you need help in making your selection, call or stop in—we’re always ready to help!
We are family-owned and operated and conveniently located in Kansas City, KS. US Boatworks provides you with the latest and best boat parts and Mercury Motors to make your time on the lake more enjoyable. By having one of the largest boat part inventories in the US, we can help get you back on the water quickly. We do this by avoiding having to wait for parts to ship from the manufacturer. Choose US Boatworks & find comfort knowing you will have a great day on the lake.
We know individuality is important, which is why we pay close attention to the interests of each customer. From the minute you walk through the door, meeting your needs is our top priority. Founded not only on excellent customer service, but also on the principles of hard work and a focused attitude, US Boatworks has a long list of satisfied customers. Call or stop by; you’ll be glad you did.
Visit our online parts store to buy high-quality OEM boat parts at prices up to 25% below retail.
Online orders of $100 or more ship for free when you select USPS. Exclusions apply.
Most orders placed by 1 pm cst ship the same day! Call us for Next Day Air Shipping.
Remanufacturing Gearcases & Outboard / Sterndrive Repair for over 40 years.
OUR BLOGS
Updated October 2026 by the factory-trained techs at US Boatworks, Kansas City Knowing how to winterize a boat motor is the cheapest insurance you’ll ever buy. Skip it, and one hard freeze can crack an engine block, split a manifold,
Is Your Mercury Running Hot? Here’s How to Find Out Why If your Mercury outboard is overheating, you’re not alone — and you don’t need to panic. After 40+ years of marine service, we’ve diagnosed this hundreds of times. The
