Testimonials

Here's What Some of our Customers Have Had to Say!

Mechanic working on an engine

Testimonials

"Next time we need work done on our truck, we'll be making the trip back to NexGen Diesel."
Jessica M.

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David C.

Took my F350 and Trailer to get DOT inspection, got me in next day and finished it promptly. Will definitely use them again. Definitely recommend.
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Mike M.

I purchased the Pulse Delete Kit for my 2024 GMC Canyon with the 8L80 gen 2 tranny.  7K miles later and everything is great. Firm shifts, easy install. Great product and customer service.
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Ronald H.

Great company and the ladies (Erica and Katie ) at the front are very professional and mechanics are very knowledgeable would recommend them.
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Jessica M.

We had several issues with our truck and had taken it somewhere else more than once, but the problems never got fixed. NexGen Diesel was able to figure everything out and actually fix all of the issues we were having.
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John D.

10 hours into our trip, the chassis a/c quit on our motorhome. Nextgen, who we found via a on line search, fit us into the schedule did a diagnostic and a temporary fix so we can complete our trip in comfort. I give them 5 stars for every touch point in the process from the receptionist to the service manager and finally the mechanic. Their rates were fair and the team well trained. Can’t say enough good things.
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Keara V.

Consistent customer service and excellent at their craft! Will always choose NextGen for our trucking repairs and maintenance! Your company is in good hands with them.
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Kevin C.

This place has been a lifesaver! My truck business was suffering badly due to mechanics that were inadequate, over charging and leaving me in a worse position than when I went to their shop initially. Luckily, I found Next Gen, and since then, my company has been thriving because we have been able to remain on the road consistently.
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Keith F.

I had a long-term issue that no one could fix.  Multiple shops, dealer and manufacturer all failed to fix it.  But NextGen Diesel did what the rest could not.  They worked very hard, did research, was transparent with issue's/findings/outcomes etc.  They valued my truck, me and my time.  Quite literally they saved my truck!  I have all good things to say.
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John W.

I take my diesel motorhome to them for all of my service work. In the past year, they have replaced my rear chassis air bags on both sides of my coach, repaired a radiator leak, repaired a manifold leak, and performed all annual maintenance (Oil change, filters, service generator, service chassis, etc.). They are prompt, professional, and do a great job. I'm very happy with the service I received from Nextgen Diesel Inc. I highly recommend this shop.
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Cherie F.

They were thorough in trying to diagnosis the issue without running up my bill in man hours. Brandon was great at explaining what they were doing and why. We'll be back to use them again.
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Trevor C.

Excellent service! They worked on my car today and did an outstanding job—quick, professional, and honest. Highly recommend for any diesel work!
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Ericka O.

Best dang truck repair shop ever! Cares about their employees! Cares about their customers! Best dang group of people I know! And got my boyfriend’s truck diagnosed and fixed the right way without trying to charge me an arm and a leg for no reason! Honesty is their policy! Gotta try them out!
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Billy M.

Have 2 diesel trucks have used other shops in the past Brandon and his team are a cut above they have treated me like family they are very knowledgeable they put your best interests in what u need highly recommend this group if you need any services for your vehicle these guys are a must.
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SERVICES

Professional Diesel Mechanic Services


Explore our extensive range of heavy-duty diesel mechanic services tailored for light to heavy-duty vehicles & commercial fleets, including DOT inspections, welding and fabrication, and preventive maintenance. At Nextgen Diesel Inc., we go beyond traditional truck repairs to also cater to RV's, trailers, and heavy equipment. Our certified diesel technicians use the latest diagnostic tools to guarantee the highest-quality service.

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CONTACT & LOCATION

Next Gen Diesel offers professional diesel mechanics and our heavy-duty truck repair shop in Denver, North Carolina. We provide service for light to heavy-duty diesel vehicles, trailers, heavy equipment, & commercial fleets, both in-shop, & via a 30-mile mobile service radius that includes service to Charlotte, Gastonia, Kannapolis, Mooresville, Hickory, Statesville, & more.

5911 Balsom Ridge Road, Denver, NC 28037