Big Rig Doctor LLC is your reliable 24/7 mobile diesel fleet service providing expert emergency roadside repair for heavy-duty trucks, trailers, and RVs. When a breakdown happens, our certified technicians come directly to you, minimizing your downtime with fast, professional on-site, mobile diesel repairs. We specialize in comprehensive engine diagnostics, air brake systems, hydraulic hose replacement, electrical repairs, and roadside tire service. Serving around 100 mile radius of Duncan SC. around the clock, Big Rig Doctor LLC is committed to getting your rig back on the road safely and efficiently. Call us now for immediate dispatch.