Engine Repair, Rebuild & Overhaul in Fresno, CA

A failing diesel engine can lead to power loss, excessive smoke, overheating, or even complete failure. At Lawler DSL Repair, we specialize in heavy-duty engine repair, rebuilds, and overhauls for semi-trucks, fleet vehicles, and heavy equipment in Fresno, CA.

Truck Engine Repair Services in Fresno, CA

Professional Diesel Engine Repair in Fresno, CA

Your truck’s engine is the heart of your vehicle, and keeping it in top condition is essential for performance, efficiency, and longevity. At Lawler DSL Repair, we provide expert diagnostics and precision repairs to restore engine power and reliability.

Our diesel engine repair services include:

  • Engine diagnostics & troubleshooting
  • Fuel system repairs (injectors, pumps, and filters)
  • Turbocharger repair & replacement
  • Cooling system repairs (radiators, water pumps, thermostats)
  • Cylinder head & gasket repairs
  • Exhaust system & emissions repairs (DPF, EGR, DEF systems)

We work on all major diesel engine brands, including Cummins, Detroit Diesel, Caterpillar, PACCAR, Volvo, and more.

Full Diesel Engine Rebuild & Overhaul Services

For trucks with high mileage or major engine wear, a full engine rebuild or overhaul can be the best way to restore performance and extend the life of your truck. Our rebuild process includes:

  • Complete engine disassembly & inspection
  • Replacement of worn components (pistons, bearings, camshafts, valves, etc.)
  • Resurfacing & machining of critical parts
  • Reassembly with OEM or upgraded performance parts
  • Dyno testing & tuning for optimal efficiency

We ensure your rebuilt diesel engine meets or exceeds OEM standards, providing maximum reliability and performance.

What Makes Us Different?

At Lawler DSL Repair, we provide:

  • Full in-shop engine rebuilds & overhauls in Fowler, CA
  • 24/7 mobile diagnostics & roadside assistance within 50 miles of Fresno, CA
  • Certified diesel mechanics with years of experience in engine repair
  • Fleet maintenance programs to prevent costly breakdowns

We diagnose, repair, and rebuild diesel engines to get your truck back on the road quickly and running stronger than ever.

FAQs

What Areas Do You Serve for Engine Repairs?

We’re located in Fowler, CA, near Fresno, CA, and proudly serve Selma, CA; Kingsburg, CA; Reedley, CA; Dinuba, CA; Visalia, CA; Tulare, CA; Clovis, CA; Sanger, CA; and Bakersfield, CA.

How Do I Know If My Diesel Engine Needs a Rebuild?

Signs of engine failure include low oil pressure, excessive blow-by, high fuel consumption, overheating, knocking noises, and loss of power.

What’s the Difference Between an Engine Overhaul & a Full Rebuild?

  • Overhaul – Repairs and replaces key components while keeping some original parts.
  • Full Rebuild – The entire engine is disassembled, machined, and rebuilt to like-new condition.

How Can I Schedule an Engine Repair or Rebuild?

Call 559-939-6609 today to schedule diesel engine repair, rebuild, or overhaul in Fresno, CA.

Contact Us for Engine Repair, Rebuild & Overhaul – Call 559-939-6609 Today!

Need diesel engine repair or a full rebuild in Fresno, CA? Call 559-939-6609 for expert diagnostics, repair, and overhaul services. Lawler DSL Repair will restore your engine’s power and efficiency!

What They're Saying About Us

See why our customers consider Lawler DSL Repair the go-to repair shop in Fowler, CA and the surrounding areas!

Reviews coming soon.

Contact Us

Need roadside assistance, have questions, or want to schedule your truck or trailer in for a service or repair? Get in touch, we're open Monday through Friday from 8:00am to 5:00pm and have roadside assistance available 24/7!

Our Hours

Monday to Friday
8:00 AM to 5:00 PM

24/7 Roadside Assistance

Speak to a Service Advisor now!