From routine maintenance to full rebuilds, Knotts Custom Diesel gives your equipment the kind of care that turns breakdowns into comebacks — and keeps you rolling down the highway.
Whether it's a semi on the highway or a work truck in the yard, we diagnose fast and fix permanent.
Advanced scan tools and experienced hands pinpoint what's really going on — no guesswork, no unnecessary parts swaps. You'll know exactly what your diesel needs before we lift a wrench.
From minor overhauls to complete rebuilds, we restore your engine to peak performance. We work on Cummins, Detroit Diesel, Power Stroke, and more — heavy duty or light duty.
Injectors, pumps, lines — if it moves fuel, we service it. We handle on-site and bench testing, cleaning, and replacement to keep your injection system running clean and efficient.
The best repair is the one you never need. Scheduled oil changes, fluid checks, filter replacements, and inspections that catch problems before they strand you on the side of the road.
Want more torque, better fuel economy, or a reliable daily driver that pulls like a freight train? We specialize in custom diesel performance that's built to last, not just flash.
Semi trucks, construction equipment, agricultural machinery — if it runs on diesel and needs serious attention, we've got the shop, the tools, and the know-how to get it back out there.
Knotts Custom Diesel is a locally owned and operated diesel repair shop right here in Hastings, Nebraska. We know what it means to depend on your equipment — whether you're hauling freight across state lines or running a business that never stops moving.
Our approach is simple: honest diagnostics, fair pricing, and work that stands up to the road. We treat every truck and engine like it's our own, because in this town, your reputation is everything.
We're not the biggest shop in town — and that's exactly why you should call us.
You'll always know who's working on your diesel. No runaround, no confusion — just direct communication from start to finish.
We respect your schedule. When we give you a timeline, we stand behind it. Your truck stays off the lot and back on the road.
No surprise charges, no inflated estimates. We explain what needs to be done and why — and only do what you approve.
We use quality parts and proven techniques. Every job is done to the standard we'd expect on our own equipment.
Give us a call or stop by the shop. We'll figure out what your truck needs and get you back on the road — fast.
We're right here in Hastings. Stop by the shop, give us a call, or send a message — we'll get back to you promptly.
Tell us about your diesel and we'll get back to you as soon as possible.
Thanks for reaching out. We'll get back to you within one business day.
