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Tri-County Diesel Services

4.6

About this business

Location details

18515 Wilhelm St, San Antonio, TX, 78266, United States

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WeekdayScheduleStatus
Mon8:00 a.m. to 5:00 p.m.
Tue8:00 a.m. to 5:00 p.m.
Wed8:00 a.m. to 5:00 p.m.
Thu8:00 a.m. to 5:00 p.m.
Fri8:00 a.m. to 5:00 p.m.
SatClosed
SunClosed
4.667 reviews
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Erasmo Chacon's profile image
Erasmo Chacon 
4 weeks ago

Tri-County Diesel Services deserves every bit of recognition I can give. From the moment I walked in, Office Manager Tori set the tone — kind, professional, and absolutely on top of communication. She kept everything transparent between me, Randy the mechanic, and my employer, Torpedo Transport Services. That level of clarity is rare in this industry, and it made me feel like my truck and my time actually mattered. I originally came in thinking I had a fuel‑supply issue. But Randy didn’t stop at the obvious. He dug deeper, ... read more

Joshua Darovitz's profile image
Joshua Darovitz 
3 years ago

If you are looking for great prices and the best service for your diesel truck in San Antonio, then look no further than Tri County! I came in for a pre purchase inspection. Where as other places charge $300 - $400 for just one inspection, I got two separate trucks inspected here for half that cost. The two individuals I worked with, Michelle and Randy, were both very kind and professional. They answered all my questions thoroughly when it came to describing problems with my unit and exactly how much those problems would c... read more

DaeLynn Kane's profile image
DaeLynn Kane 
2 years ago

My dad has been coming here for years to get his 18 wheeler fixed. Truman has always been so good to our family. Michelle, the office assistant is really great and so nice! We will continue to come here for diesel service. ❤️ 

Joseph Weah's profile image
Joseph Weah 
2 years ago

These are really good people here. We have a shaking problem that’s hard to diagnose with our truck. They took their time and checked everything out and let us know everything they found. They spent time and didn’t even charge us since they couldn’t definitively say which issue was actually causing the problem rather than throw parts at it and charge us unnecessarily. They even referred us to another shop to do some of the things they don’t handle. This is a really good shop interested in actually solving your problem and no... read more

Jason I's profile image
Jason I 
3 years ago

5 stars isn't enough for Tri-County. They are incredibly professional, friendly & honest. Shop & floors are SPOTLESS & not like the average black grease tarpit like were used to seeing. I had called shortly before closing & they got me in early the next morning. Managed to get me out by closing that same day. What would have been a logistical nightmare at the dealership ended up becoming a great experience here. I was exhausted from running all night & they were kind enough to let me zonk out in the sleeper, where as most p... read more

Frequently asked questions about Tri-County Diesel Services

How is Tri-County Diesel Services rated?

Tri-County Diesel Services has a 4.6 star rating with 67 reviews. 

When is Tri-County Diesel Services open?

Tri-County Diesel Services is open now. It will close at 5:00 p.m. 

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