PRECISION REPAIR.
POWERFUL PERFORMANCE.
Specializing in light and medium-duty diesel services, Medina Valley Diesel delivers technical mastery and industrial-grade reliability to Medina and Bexar County. Our shop bridges the gap between high performance and everyday utility.
LOCATION
VISIT OUR SHOP AT
2933 US HWY 90 W CASTROVILLE, TX, 78009
PHONE: (830) 584-5932
HOURS: WEEKDAYS- 8AM-6PM
SATURDAY- BY APPOINTMENT
TECHNICAL STANDARDS
TECHNICAL ACCURACY
Utilizing advanced diagnostic systems to pinpoint complex mechanical issues with unparalleled precision for light and medium-duty engines.
PEAK PERFORMANCE
Specialized recalibration and component optimization designed to extract maximum power and efficiency from your specialized diesel systems.
Rigorous maintenance protocols that exceed standards, ensuring your light and medium-duty fleet remains operational in demanding environments.
DURABILITY FIRST
SERVICES
DIAGNOSTICS
Utilizing advanced tech-industrial scanning tools to pinpoint precise faults in electronic control modules and mechanical systems.
FUEL SYSTEMS
Comprehensive testing and precision calibration of high-pressure common rail injectors and fuel delivery pumps for optimal performance.
PERFORMANCE
Specialized tuning designed to maximize power output while maintaining strict industrial efficiency standards for diesel engines.
MAINTENANCE
Preventative maintenance schedules including fluid analysis, filter replacement, and multi-point industrial safety inspections.
FLEET SUPPORT
Modular service solutions for commercial light-duty diesel fleets, ensuring minimal downtime and operational reliability.
CONTACT US
Reliable service starts with a simple conversation. Whether you’re looking for routine fleet maintenance, complex engine diagnostics, or specialized performance upgrades, our team is ready to get your diesel back on the road. Reach out today via phone, email, or the form below to schedule an appointment or request a quote—we look forward to keeping your rig running at its peak.