Mack Boring & Parts Company

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Welcome to Mack Boring & Parts Co. For over 90 years, we have been a reliable, industry-leading supply chain partner for diesel and related products. Discover how we can optimize your power and propulsion systems and processes.

» Recreational Marine
Mack Boring exclusively provides Yanmar for sail and powerboats. Yanmar is #1 for 9-900 hp recreational marine diesel. Click here for more info.

» Commercial Marine
We supply light-to-heavy-duty commercial marine engines from 75-2150 hp. Excellent availability, durable engines and Mack Boring support is a winning formula. Click here for more info.

» Transmission
Our Marine Transmission Center offers the finest transmission and propulsion products. Premium brands like ZF, Velvet Drive, and Aquadrive - backed by Mack Boring service and support is a winning combination.

» Industrial
If you seek industrial diesel engines and power units from 5-520 hp, you’ve come to the right place. We build basic and custom power packs and provide repower diesels. Click here for more info.

» Generators
Mack Boring manufactures GLOBAL POWER PRODUCTS® diesel generators in open frame and enclosed packages from 8-100kW. Learn more about GPP diesel generators.

» Training Services
Since 1969, Mack Boring has trained over 20,000 diesel owners, mechanics, OEMs, military personnel, and trainers. Training Services is our specialty. Learn about what we can do for you.