Professional semi-truck repair for owner-operators and commercial fleets throughout the Inland Empire. Specializing in Volvo, Freightliner, Cummins, Detroit, Paccar and other heavy-duty diesel trucks.
Contact
17903 Valley Blvd Bloomington, CA 92316
Opening Hours
Mon - Fri: 8:30am-5:30pm
Saturday: 8:30am-2:30pm
Sunday: Closed
Contact
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Engine and diagnostics
Advanced computer diagnostics, engine overhauls, fuel system service, and performance tuning for heavy diesel engines.
DPF and emissions
Thorough DPF cleaning, SCR diagnostics, and aftertreatment repairs to keep your rig fully compliant and running clean.
Brakes, tires and alignment
Air brake overhauls, precision laser wheel alignment, tire replacements, and suspension repairs built for heavy hauls.
Built to keep your fleet moving forward
At Road Boss Diesel Repair, we know downtime costs money. Operating out of our spacious Bloomington facility, we provide heavy-duty truck drivers and fleet managers with transparent quotes, honest work, and rapid turnaround times. Every repair is completed to rigid factory standards by diesel technicians who understand the demands of the road.
State-of-the-art facility and secure yard
Equipped with multiple dedicated service bays, heavy-duty diagnostic tools, and a secure parking yard, our Bloomington location is configured to handle large semi-trucks, trailers, and complete fleets safely.
Professional Tire Equipment & Trusted Brands
Get the professional tire equipment you need from brands you can trust. Our selection includes dependable tools and machines designed to support tire mounting, balancing, repair, inflation, and routine service. Whether you operate a busy automotive shop or maintain a fleet, quality equipment helps improve accuracy, efficiency, and safety. Choose durable tire service solutions from established manufacturers to keep your operation moving with confidence.
Forced DPF Regeneration Service
A forced DPF regeneration service helps clear accumulated soot from your diesel particulate filter (DPF) when normal driving conditions have not allowed it to regenerate properly. The DPF captures harmful exhaust particles, but it can become restricted over time—especially with frequent short trips, stop-and-go driving, or warning lights that have been ignored. During this service, a qualified technician uses diagnostic equipment to command a controlled regeneration cycle and monitor exhaust temperatures, pressure readings, and fault codes. If the filter is suitable for regeneration, this process can restore exhaust flow, improve engine performance, and help prevent more costly repairs. Important: a forced regeneration is not appropriate for every vehicle or every DPF fault. Severe blockage, damaged sensors, engine issues, or excessive ash buildup may require further diagnosis, professional cleaning, or replacement. Schedule service promptly if your DPF, engine, or emissions warning light is on.
6 Service Bays for Heavy-Duty Trucks
Our facility features six dedicated service bays designed to accommodate heavy-duty trucks and commercial vehicles. With ample space for inspections, maintenance, diagnostics, and repairs, our bays help keep fleets moving with efficient, dependable service. Our experienced technicians are equipped to handle a wide range of heavy-duty truck needs, from routine preventive maintenance to more complex mechanical work.
Ready to get your rig serviced?
Whether you need immediate diagnostics, scheduled maintenance, or want to discuss a dedicated fleet account, Road Boss Diesel Repair is ready to serve you. Contact our shop today to schedule your service appointment.
Get in touch with our team
Shop location
Road Boss Diesel Repair
Bloomington, CA
Phone: (626)-762-0919
Email: roadbossdiesel@gmail.com
Serving Bloomington, Fontana, Ontario, and the Inland Empire