Hwy 123 Diesel & Auto Repair | Truck Repair Shop

Hwy 123 Diesel & Auto Repair in San Marcos, Texas is a full-service truck repair facility serving professional drivers and fleet operators with comprehensive maintenance and repair solutions. professional parking We combine experienced technicians, quality parts, and advanced diagnostic equipment to keep your vehicles operating at peak performance. Our repair services cover the full spectrum of truck maintenance needs. From routine oil changes and filter replacements to complex engine work and transmission rebuilds, our experienced mechanics handle all major and minor repairs. We offer transparent pricing and quality workmanship you can depend on. Our labor rates are competitive and clearly quoted upfront, so you know exactly what to expect. For major overhauls including engine work, transmission service, and comprehensive rebuilds, we utilize quality OEM and aftermarket parts backed by manufacturer warranties. Hwy 123 Diesel & Auto Repair understands that mechanical failures are often unexpected and costly. That's why we offer 24/7 emergency roadside repair service to get you back on the road when problems strike. Our rapid response team is equipped to handle breakdowns anywhere in the region. Beyond emergency repair, we recommend preventive maintenance programs designed to identify and address potential issues before they become major problems. Regular maintenance extends vehicle life, reduces unexpected downtime, and improves fuel efficiency. Located in San Marcos, Texas, Hwy 123 Diesel & Auto Repair is your trusted partner for all truck repair and maintenance needs. Our commitment to quality service and customer satisfaction has made us the preferred choice for professional drivers and fleet operators.