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John's Truck Service Inc.

4.6
(120 reviews)

Business Details

6297 Quay Rd, Tucumcari, NM
88401, United States
(575) 461-2085
https://johnstruckserviceinc.com

About

RV Supply StoreTruck Accessories Store
Introducing John's Truck Service Inc., Tucumcari's premier full-service Cummins, CAT, and Detroit Diesel dealer. For over 40 years, we've remained as the area's preferred diesel engine repair company. We can provide you with all of the preventative services you need. From changing filters to tightening your belts and beyond. We'll ensure all of your critical diesel engine parts are getting the attention they need to function flawlessly. From minor to major repairs, John's Truck Service Inc. is your one-stop shop for diesel repairs. We specialize in a wide range of services including, diesel engine repairs, maintenance, diagnostics, and much more. Contact us today to schedule an appointment for service. You'll be glad that you did.

Location

John's Truck Service Inc.
6297 Quay Rd, Tucumcari, NM
88401, United States

Hours

Monday8:00 AM - 5:00 PM
Tuesday8:00 AM - 5:00 PM
Wednesday8:00 AM - 5:00 PM
Thursday8:00 AM - 5:00 PM
Friday8:00 AM - 5:00 PM
SaturdayClosed
SundayClosed

Reviews

4.6
120 reviews
5 stars
105
4 stars
3
3 stars
0
2 stars
0
1 star
12
  • MF
    Michael File
    6 days ago
    5.0
    I’m on a huge road trip and ran into problems on I-40. These folks at John’s Truck Service got me in Wednesday and had me back on the road Thursday morning. The invoice was more than fair. They gave me a ride to and from my hotel room. By the time I left, I knew everyone in the shop by name. They not only cared about getting me back on my way as quickly as possible, but they also made sure the work was done right so I won’t have to worry about it again. I have a 2004 6.0 and the truck has been a nightmare. Anybody familiar with diesels knows what I’m talking about. I can’t give this shop any higher recommendation!
  • FM
    Fleet Merica
    May 12, 2026
    5.0
    They took really good care of our Volvo 2022. The owner of the shop was honest since from the beginning. Truck almost went into a derate mode, they found the issue, replaced def doser and we were back on the road same day.
  • GG
    Ghost
    May 12, 2026
    5.0
    Great service, professional team, and honest communication. Fast turnaround and quality work on trucks. Highly recommend John’s Truck Service!!!
  • RC
    Richard Carruth
    Apr 27, 2026
    5.0
    ⭐⭐⭐⭐⭐ Absolutely Outstanding Service! I brought my diesel truck into this independent shop after another place quoted me a ridiculous price and couldn’t even do the work for 8weeks. What really stood out was how they prioritized my work as they knew I was on my to Texas and was stranded. They have a large shop buzzing with activity and yet they put me to the front of the line. As for the repair itself, these guys are true experts in diesel engines. They quickly identified the problem, explained everything clearly, and fixed it right the first time. Their knowledge and experience with diesel repair is second to none. The customer service was top-notch, with excellent communication throughout the entire process. They kept me updated on the progress, explained all the options without any pressure, and were genuinely helpful. No upselling, no surprises—just honest, professional service. Best of all, their pricing was very fair. My truck is my baby and I felt like I got premium diesel expertise at a reasonable price. If you have a diesel vehicle and want honest, skilled mechanics who treat you right, look no further. Highly recommend this shop to anyone in the area!
  • DR
    David Rehler
    Jan 30, 2026
    5.0
    I had an emissions related issue on my motor home that threatened to shut down our trip. John’s was able to get us in first thing the next morning and get us back on the road by noon. It is hard to find this level of caring these days. I am Very impressed with this shop. Update: we went back after the problem came back. Not John’s fault at all. A very expensive failure of scr. They were able to find one and get it next day. I had an estimate from a nearby Cummins dealership which was much higher. Plus I got some additional work completed and still less cost. My impression has only improved. I was actually going to drive 500 miles back here because service this good is hard to find. But was able to get the job competed while I was here. A+++++

Frequently Asked Questions About John's Truck Service Inc.

What types of diesel engines does John’s Truck Service Inc. specialize in?

John's Truck Service Inc. specializes in Cummins, CAT, and Detroit Diesel engines.

What services are offered at John’s Truck Service Inc.?

They provide diesel diagnostics, diesel engine repairs, powertrain diagnostics, RV engine repairs, and truck engine repairs.

Brand Certified Facts from John's Truck Service Inc.

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