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.
Customers consistently praised the friendly, professional, and caring service provided by the staff, particularly highlighting Steve and his team.
Expertise
Many reviews noted the high skill level and knowledge of the mechanics, with several customers expressing satisfaction with accurate diagnostics and effective repairs.
Timeliness
Numerous customers appreciated the quick turnaround times for repairs, often getting back on the road the same day.
Fair Pricing
While many reviews mentioned reasonable pricing, there were some complaints about high charges for specific services, indicating a mixed perception of value.
Community Impact
Customers felt a strong sense of community and support from the business, often mentioning the personal touch and willingness to help beyond just repairs.
TB
The Blakeslee’s
3 days ago
5.0
Blew a fan belt and they got me hooked up with a new one in about 5 minutes.
SS
Sokol Sahiti
Oct 31, 2025
5.0
On Behalf of Black Eagle I must state that this shop did an amazing job with our truck that was broken down. Steven was very helpful and couldn't be more happy.
DM
Dave Morris
Oct 27, 2025
5.0
Best there is in the heavy truck and rv (chassis) repair business. I had an exhaust manifold leak on my Cummins ISM450 (Newmar mountain Aire Class A). I was so impressed with the skill level of Steve’s team that I stayed almost 2 weeks while they addressed a number of other maintenance issues. If you stop in, ask Steve’s brother Stan for a tour of his cargo trailer.
AP
adan padilla
Jul 24, 2025
5.0
Very friendly ,trustworthy and professional,I definitely recommend
LJ
lindsey johnson
Jul 2, 2025
5.0
We got stranded on spring break 9 hours from home and were told they were the best with in 100 miles. All I can say is that they are absolutely amazing. I feel like they went above and beyond to help us. They let us all hang out upstairs where the girls could play, watch TV, and color. They were able to get us back on the road the same day. When we heard our truck start up I had a world wind of emotions because I was so happy. I thanked everyone who was there the mechanics with oil on them and all with a huge hug. People like them are the ones who impact you the most and make you realize there is still good in the world. Thank you all so much for helping us we truly appreciate it from the bottom of our hearts.