At Superior Diesel Companies, we keep commercial fleets and heavy-duty diesel vehicles moving with specialized diagnostic, repair, and remanufacturing services. By anchoring our expertise across specialized regional facilities, we provide targeted solutions ranging from advanced DPF cleaning to precision component sourcing.

Whether you need high-performance aftermarket diesel parts, replacement turbochargers, or heavy-duty engine cooling fans and fan clutches, our Michigan shops deliver technical expertise with elite turnaround times.

OUR SPECIALIZED LOCATIONS
 

• Diesel Injection Service (Grand Rapids, MI) – Your hub for fuel systems, high-efficiency diagnostics, and performance diesel components.

• Performance Diesel & Gas (Grand Rapids, MI) – Complete mechanical repair, fleet maintenance, and advanced engine troubleshooting located right behind our injection facility.

• Stateline Diesel Service (Edwardsburg, MI) – Full-service heavy-duty repair, turbocharger service, and component remanufacturing serving Southern Michigan.