Truck Engine Repair, Rebuild, Overhaul & Conversion Services in San Bernardino, CA

Experiencing power loss, oil leaks, or engine warning lights? We're here to help. We offer expert diesel engine repair, rebuild, overhaul, and conversion services for heavy-duty trucks, buses, fleets, and equipment.

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Diesel Engine Repairs and Services in San Bernardino, CA

At Devore Truck Repair, we specialize in diesel engine repair, rebuilds, overhauls, and conversions for heavy-duty trucks, trailers, fleets, buses, and construction equipment. Whether you need to fix a leak or replace a worn-out block, we’ll get the job done right.

Signs of engine trouble include:

  • Excessive smoke or oil consumption
  • Power loss or rough idling
  • Engine overheating or knocking
  • Metal flakes in oil or low compression
  • Check engine lights or diagnostic codes

We handle everything from basic repairs like gasket and injector replacement to full in-frame or out-of-frame rebuilds. We also offer performance and emissions-compliant engine conversions when your application calls for it.

What Makes Us Different

Diesel engines are complex, and one wrong step can lead to major failures. At Devore Truck Repair, we don’t cut corners—we diagnose, repair, and rebuild to exact specifications using quality components and expert care.

  • In-house diesel engine diagnostics and repair
  • Complete in-frame and out-of-frame rebuilds
  • Custom engine conversions to meet emissions and performance needs
  • OEM-quality parts and warranty-backed work

Whether you’re looking to extend engine life or upgrade your powertrain, we provide cost-effective solutions that keep your vehicle working longer and harder.

Mobile Services and Roadside Assistance Within 50 Miles

Devore Truck Repair provides mobile repair and roadside assistance within 50 miles of San Bernardino, CA. Whether you’re facing a breakdown on the road or need on-site fleet maintenance, our mobile team handles diagnostics, minor repairs, fluid top-offs, and emergency support—keeping your operation moving without downtime.

Schedule Your Engine Service Now: Call 951-298-9928!

Don’t wait for total engine failure. Call 951-298-9928 to schedule diagnostics, repairs, or a full engine overhaul. We’ll restore performance, prevent further damage, and keep your truck ready for the road.

FAQs

What Areas Do You Serve?

We’re located at 1775 Devore Road, San Bernardino, CA 92407, near I10 and 140. We also serve Riverside, CA; Moreno Valley, CA; Fontana, CA; Rancho Cucamonga, CA; Ontario, CA; Corona, CA; Anaheim, CA; Irvine, CA; and Huntington Beach, CA.

What’s the Difference Between an In-Frame and Out-of-Frame Rebuild?

An in-frame rebuild is performed with the engine still in the truck and usually includes pistons, liners, and bearings. Out-of-frame rebuilds involve complete engine removal and full disassembly for deep restoration.

Can You Convert My Engine to a Different Spec?

Yes. We perform emissions-compliant diesel engine conversions, including power upgrades or changes to meet different state or fleet requirements. We’ll help you find the right fit for your application.

How Can I Get In Touch?

Call 951-298-9928 to schedule your engine repair or rebuild. Whether it’s a minor fix or a full overhaul, we’ll get your engine running strong and reliable again. Let’s get your truck back to peak condition.

Professional Truck Repairs

When something breaks down, you need repairs you can count on—and fast. Our technicians handle all major repairs including brakes, suspensions, transmissions, engines, coolant systems, and electrical diagnostics. We also service trailers, buses, and heavy equipment. Whether it's a complex engine rebuild or a quick brake job, our shop is equipped to get you back on the road safely and efficiently.

Customers Reviews

What our customers say about our medium & heavy-duty truck and fleet repair services.

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