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Diesel Truck Repair Shop In Ontario, CA

At Rapid Diesel Repair, we excel at servicing anything and everything truck-related. Now located in Ontario, California—just off the I-10—we proudly provide comprehensive diesel truck repair services for San Bernardino, Riverside, Los Angeles, Orange County, and the entire Inland Empire region.

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Large
Diesel

SEMI
REPAIR

Heavy
Duty
equipment

Light
Duty
Trucks

Your Trusted
RAM Specialty Shop

Our team knows RAM trucks inside and out. Whether it’s a minor issue or a major overhaul, we’ve got the expertise to keep your RAM running at its best.

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Our Truck Repair Services

CARB Compliance in Ontario, CA

CARB Compliance

Failing to meet California's strict emission standards can cost you thousands in fines and downtime. At Rapid Diesel Repair, we specialize in CARB compliance services, keeping your vehicles road legal and running efficiently.
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Mechanic providing truck inspection in Ontario, CA

DOT and 90-Day Bit Inspection

Stay compliant and keep your fleet safe with DOT inspections at Rapid Diesel Repair in Ontario, CA. We meticulously inspect every component to meet federal and state safety standards. Call us today to schedule your inspection.
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Truck general diesel repairs in Ontario, CA

General Diesel Repair

At Rapid Diesel Repair, we provide expert general diesel repair services in Ontario, CA. From engine diagnostics to cooling system repairs, our certified technicians keep your diesel vehicles running smoothly. Call us today to schedule your service!
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Mobile truck repair in Ontario, CA

Mobile Truck Repair

Get expert mobile truck repair services in Ontario, CA, with Rapid Diesel Repair. From engine issues to roadside emergencies, we bring our expertise directly to you, minimizing downtime and keeping your fleet moving. Call us for fast, reliable service today!
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Mechanic providing truck preventive maintenance in Ontario, CA

Preventive Maintenance

At Rapid Diesel Repair, we offer expert preventive maintenance services in Ontario, CA, to keep your fleet running efficiently and minimize costly downtime. From fluid changes to detailed inspections, we’ve got you covered. Call us to schedule your service today!
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RV in Ontario, CA

RV Service

Get expert RV service in Ontario, CA, with Rapid Diesel Repair. From routine maintenance to complex repairs, we ensure your RV stays road-ready for every adventure. Call us to schedule your service today!
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Roadside assistance in Ontario, CA

Roadside Assistance

Get roadside assistance in Ontario, CA, from Rapid Diesel Repair. Whether it’s a flat tire, engine trouble, or a breakdown, we’re here to help get you back on the road quickly. Call us for immediate support today!
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Towing in Ontario, CA

Towing

Need reliable towing services in Ontario, CA? Rapid Diesel Repair offers fast, professional towing for heavy-duty trucks, trailers, and RVs. Call us for assistance today!
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Truck in Ontario, CA

Truck Alignment

Get expert truck alignment services in Ontario, CA, with Rapid Diesel Repair. Improve safety, reduce tire wear, and enhance handling with precise alignment adjustments. Call 909-701-8755  [tel:909-701-8755]today to schedule your service!
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About Rapid Diesel Repair

Rapid Diesel Repair repair shop in Rancho Cucamonga, CA

We Keep You Haulin'!

With several years of experience in the diesel repair industry, Robert Patritti founded Rapid Diesel Repair in 2015 after finding himself unsatisfied with other services. By 2018, Robert’s shop had expanded to 10 exceptional and experienced technicians he continues to work alongside and teach everything he knows.

As such, you can rest assured that our team will offer the best, most comprehensive services possible in an efficient and effective manner, meaning your truck or fleet gets back on the road sooner and back to making money for your business.

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Why Partner With Us?

At the heart of diesel repair company is a dedication to delivering exceptional service and value to you.

Customer Driven

Tailored Diesel Repair and Preventative Maintenance Solutions For All Your Needs

Results Oriented

Diesel Repair Services That Keep You Haulin'

Quality Materials

High End Materials That Withstand The Toughest Road Conditions

reliable services

Our Expert Technicians Always Keep Their Word

Mobile Repair

We Get People & Businesses Back On The Road Fast

Profitability

Receive Superior Service To Help You Increase Your ROI

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We're A Preferred Repair Facility

We're a preferred facility for Ryder Repair, Brinks Repair and Enterprise Truck Rental Repair.

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Truck in Rancho Cucamonga, CA
We're A Preferred Ryder Repair Facility

If you’re leasing a Ryder vehicle and in need of repairs, Rapid Diesel Repair’s got you covered. We’re a preferred Ryder repair facility, call us to get your Ryder vehicle in for a repair.

Truck in Rancho Cucamonga, CA
We're A Preferred Enterprise Truck Rental Repair Facility
Brinks truck
We're A Preferred Brinks Repair Facility

Suspension Repair

At Rapid Diesel Repair, we provide expert suspension repair services in Ontario, CA. From shocks and struts to complete suspension overhauls, we keep your truck safe and stable. Call us today to schedule your service!
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Transmission & Clutch Repair

At Rapid Diesel Repair, we specialize in transmission and clutch repair services in Ontario, CA. From diagnostics to complete overhauls, we keep your truck shifting smoothly. Call today to schedule your service!
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Axle Repair

At Rapid Diesel Repair, we provide expert truck axle repair services in Ontario, CA. From diagnosing axle damage to full replacements, our technicians ensure your truck stays safe and road-ready. Call us to schedule your service today!
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Oil & Fluid

At Rapid Diesel Repair, we provide expert oil and fluid services in Ontario, CA. From oil changes to fluid top-offs, we ensure your truck runs smoothly and efficiently. Call to schedule your service today!
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Diagnostics & Electrical Repair

At Rapid Diesel Repair, we offer expert diagnostics and electrical repair services in Ontario, CA. From pinpointing faults to resolving electrical issues, we ensure your truck operates reliably. Call us to schedule your service today!
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Engine Repair, Rebuild, Overhaul & Conversion

At Rapid Diesel Repair, we provide expert engine repair, rebuild, overhaul, and conversion services in Ontario, CA. From minor fixes to complete engine transformations, we keep your heavy-duty truck running at its best. Call to schedule your service today!
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EGR & DPF Repair

At Rapid Diesel Repair, we specialize in EGR and DPF repair services in Ontario, CA. From cleaning to system repairs, we ensure your truck meets emissions standards and runs efficiently. Call to schedule your service today!
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Drivetrain Repair

At Rapid Diesel Repair, we provide expert drivetrain repair services in Ontario, CA. From driveshaft issues to differential repairs, our skilled technicians ensure your truck operates smoothly and efficiently. Call 909-701-8755 [tel:909-701-8755] to schedule your service today!
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HVAC System Repair

At Rapid Diesel Repair, we offer professional HVAC systems repair services in Ontario, CA. From air conditioning fixes to heating system maintenance, we keep your truck’s cabin comfortable year-round. Call today to schedule your service!
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Coolant System Repair

At Rapid Diesel Repair, we provide expert coolant system repair services in Ontario, CA. Prevent overheating and maintain engine efficiency with our specialized care. Call us to schedule your service today!
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Tire Repair

At Rapid Diesel Repair, we provide expert tire repair services in Ontario, CA. From patching punctures to balancing and replacements, we keep your heavy-duty truck safe and efficient on the road. Call today to schedule your service!
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Air Brake Repair

Get expert air brake repair services in Ontario, CA, at Rapid Diesel Repair. From diagnostics to complete repairs, we ensure your truck’s braking system operates safely and reliably. Call us today to schedule your service!
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What Customers Are Saying About Us

Excellent
Based on 124 reviews
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Kenneth Jones
2024-03-25
Super customer focused and rhe price was reasonable. They went above and beyond making space for me. Totally recommend them...
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Dallas Sellers
2024-03-25
Had to have 5 injectors replaced. My truck was taken care of asap and in top shape truly grateful.
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Kary Kelly
2024-03-25
Phenomenal mechanics. Integrity, honesty, and excellent communication. Highly recommend rapid diesel!
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a m
2024-03-25
Seriously fast and thorough service, if you're looking for a company that's reliable I strongly recommend this one for any of your diesel needs
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Brandon Kelly
2024-03-25
Super knowledgeable repair shop with amazing customer service.
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Braxton Shaw
2024-03-25
Rapid diesel is a great business, I have a 26ft long box truck they got us in and out in no time and I got a free shirt overall Rapid Diesel Repair provided a great service.
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Mady Fuentes
2024-03-25
They always get the my tow trucks up and running very fast I never had any issues they will get your truck running really fast

Contact us

Get in touch with Rapid Diesel Repair today to schedule the services you require or for emergency roadside assistance & towing service.

Ontario, CA

251 Kettering Dr
Ontario, CA 91761
909-701-8755
Monday - Friday: 8:00AM - 4:00PM
Saturday - Sunday: By appointment only
Towing: 7:00AM - 9:00 PM

Get In Touch

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