Small town roots, big dreams.

The Doc's Diesel Story

My Grandpa Doc was the one who changed the trajectory of our family with his entrepreneurial spirit. He paved the way for bigger ideas, bigger vision, and bigger execution. He exemplified hard work and a love for his people. Early on he owned farmland, then went into the dump truck business, then owned a Ford Dealer, and ultimately got into the auto parts business where he really dug deep. He passed away when I was a kid, however I’m thankful for the time we had together. 

I started this business with his spirit in mind. I wanted to bring some of his principles into the 21st century and continue his legacy thus starting Doc’s Diesel. It makes me happy seeing all of the great reviews and happy customers knowing how proud this would have made Grandpa Doc.

Doc’s Diesel is located in Small Town Ohio and serves customers in all 50 states. Doc’s is growing rapidly thanks to our amazing Team and Customers. Doc’s Diesel speedy delivery, genuine quality, and top notch ordering process makes maintenance time a little easier and quicker.

At Doc’s Diesel you’re not just buying filters.. You’re joining the spirit of working hard, dreaming big, and family values.

- Max Nihart, Doc's Diesel Founder

Doc’s Diesel is the new standard in aftermarket Diesel Filters. Our Premium Diesel Filter Line includes: Fuel, Oil, Cabin Air, Water Separator, and Air Filters. We set ourselves apart in a few different ways, mainly being the quality of our product. Our aftermarket parts are spec'd and designed to meet or exceed the quality and performance of the original filters (OEM's) that come in your vehicle.