About State Line Diesel Performance
State Line Diesel Performance serves fleet operators and diesel equipment owners across Rock Hill, South Carolina and the surrounding region with comprehensive maintenance and repair work. Located in Rock Hill, the shop handles diesel-specific service for fleets and owner-operators within a 15-mile radius, including nearby communities like York, Fort Mill, Lancaster, and Chester. The operator stocks OEM parts and provides fleet maintenance programs designed to keep diesel equipment running reliably. Call (803) 980-7537 for fleet maintenance and diesel repair service.
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Our Services
OEM Parts
Fleet Maintenance
Diesel Specialist
Customer Reviews
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Verified Customer
Google Review
I had my Rough Country leveling kit put on my 2016 4Runner by the team at State Line Diesel Performance and the guys did a phenomenal job. Jake & Dawson answered all my questions and took care of my car just a few hours after I dropped it ...
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Verified Customer
Google Review
Response from the owner
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Verified Customer
Google Review
Jake and the crew are awesome to work with. They can handle anything from routine maintenance or mid to wild one off builds. The team did a fantastic job customizing my truck. The truck gets compliments everywhere I go and performs ...