
At Rapid Diesel Repair, we offer comprehensive services for heavy-duty trucks, trailers, and RVs in Ontario, CA. From preventative maintenance to diagnostics, we keep your vehicles running efficiently. Call us to learn more about our expert solutions.
Real challenges. Real solutions.
Your RV is more than just a vehicle. It’s your home on wheels, and it deserves the best care to keep you safe and comfortable on the road. At Rapid Diesel Repair, we specialize in comprehensive RV services for motorhomes and campers in Ontario, CA. Whether you’re planning your next big trip or addressing unexpected issues, our skilled technicians are here to help.
An engine or transmission failure far from home can end a vacation fast.
Weak house batteries, wiring faults and dead lights make camping hard.
A failed AC or furnace makes your RV uncomfortable in Inland Empire heat or mountain cold.
Small seal failures let water in and cause expensive damage to walls and floors.
Our RV services cover a wide range of maintenance and repair needs to keep your motorhome running smoothly. From minor fixes to major repairs, we’re equipped to handle it all with precision and care.
Ensuring your RV performs reliably on the road. We work on diesel pusher engines such as Cummins, and on the Allison transmissions found in many motorhomes.
CALL RAPID DIESEL(909) 701 8755Talk with a diesel repair specialistAddressing battery, wiring, and lighting issues for optimal functionality, including chassis and house battery charging problems.
CALL RAPID DIESEL(909) 701 8755Talk with a diesel repair specialistKeeping your heating and cooling systems in top condition for year-round comfort.
CALL RAPID DIESEL(909) 701 8755Talk with a diesel repair specialistEnhancing safety and ride quality. We check tire age and pressure, shocks, air bags and steering components.
CALL RAPID DIESEL(909) 701 8755Talk with a diesel repair specialistProtecting your RV from water damage by inspecting seams, vents and sealant.
CALL RAPID DIESEL(909) 701 8755Talk with a diesel repair specialistRegular fluid changes, filter replacements, and comprehensive system checks.
CALL RAPID DIESEL(909) 701 8755Talk with a diesel repair specialistA simple process so you always know what is happening with your truck.
Tell us about your RV, its chassis and what you are noticing.
We inspect the mechanical and living systems and explain what we find.
We complete the repairs so you can travel with confidence.
What makes us different?
At Rapid Diesel Repair, we understand the unique needs of RV owners. Our team is committed to providing top-tier service that keeps your motorhome road-ready. Here’s what sets us apart:
Skilled in diagnosing and repairing the complex systems of RVs.
We offer everything from engine work to interior system repairs.
Clear communication and fast service to get you back on the road.
Serving Ontario and the surrounding Southern California region. Whether you’re a full-time RVer or a weekend explorer, you can trust us to keep your vehicle in peak condition.
From heavy-duty trucks to RVs, we service all diesel vehicles.
We understand downtime costs money, so we work efficiently without cutting corners.
Clear communication, transparent pricing, and top-notch service are our priorities.
Frequently Asked Questions
Straight answers about motorhome and RV service.
We serve Ontario, San Bernardino, Riverside, Los Angeles, Orange County, and the Southern California Inland Empire.
It’s recommended to service your RV annually or before any major trip. Regular maintenance ensures your vehicle stays in top shape and prevents unexpected breakdowns.
Yes! We handle a variety of RV needs, from engine and transmission work to HVAC and electrical system repairs, ensuring your motorhome functions perfectly inside and out.
Yes. Diesel pushers are a big part of what we do. We service the engine, cooling system, fuel system, air brakes and transmission, and we check the chassis the same way we would a heavy duty truck.
Before a big trip, have the tires checked for age and pressure, the brakes inspected, fluids and filters changed, the batteries and charging system tested, and the roof seals looked over. A pre trip inspection catches most problems before you leave town.
RV tires often age out before the tread wears down, because they sit for long periods in the sun. Many tire makers suggest replacing them around six years old no matter how they look. We can read the date code on each tire and let you know where yours stand.
Common causes are old batteries, a failing converter or charger, loose or corroded connections, and parasitic draws when the RV is stored. We test the whole electrical system to find the real cause.
Yes. We service campers and trailers for brakes, bearings, lights, tires and suspension, along with motorhomes.
It depends on the truck and what it needs. Call, text or use the form and we will explain your options before any work begins.
Contact us about RV service now!
Call Rapid Diesel Repair at 909-701-8755 to schedule your RV service in Ontario, CA. Let us help you enjoy your travels with confidence and peace of mind.