About Colby's Diesel & Automotive Repair
St. George sits along a major corridor connecting Las Vegas and Salt Lake City, drawing RV traffic, owner-operators, and regional freight through southern Utah year-round. Colby's Diesel & Automotive Repair, located at 421 N Park St in St. George, serves diesel and RV owners across a 15-mile radius covering Washington, Hurricane, and surrounding communities. The shop handles diesel engine repair and RV repair work, addressing the mechanical needs of travelers, fleet operators, and equipment owners who rely on heavy-duty diesel power in the area. Call (435) 414-3762 for service.
Gallery
Our Services
RV Repair
Diesel Engine Repair
Diesel Specialist
Customer Reviews
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Verified Customer
Google Review
We were traveling through the area and our Chevy Duramax overheated. We got it towed to Colby's off of the freeway by Ladd's Towing (other great company). Colby got it in right away and figured out our issue. He even came in on Saturday ...
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Verified Customer
Google Review
Response from the owner
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Verified Customer
Google Review
There really should be more than 5 stars and Colby deserves them all. After breaking down with a new-to-me skoolie, he saved the day. Not only did he fix the bus, he was thoughtful and caring with my situation. He is trustworthy, reliable ...