Truck Engine Repair, Rebuild & Conversion Services in Fontana, CA

Proudly Serving the Counties of San Bernardino, Riverside & Los Angeles Since 2004

Detroit Diesel, Cummins, CAT… all these engines are famed for their durability in the trucking world. But despite their reputation, diesel engines are still vulnerable to everyday wear and tear. At EIP Diesel Repair in Fontana, California, we’ll make your engine look like new with engine services.

Diesel mechanic performing diesel engine repairs on semi truck in Fontana, CA

Why Do I Need Diesel Engine Repairs?

Your truck’s diesel engine is built to last you thousands of miles. However, diesel engines can experience wear and tear over time, causing faulty fuel injection, overheating, and electrical issues, among other problems. The result can be devastating if left unchecked: reduced power, increased emissions, poor fuel economy, and ultimately, engine failure.

Common problems such as fuel system issues, electrical problems, and cylinder and piston damage can often be prevented or mitigated through regular maintenance tasks, such as oil changes, filter replacements, and inspections. However, if your engine needs more work than you previously thought, EIP Diesel Repair provides expert engine repair services for all medium- and heavy-duty diesel engines, including the coveted Detroit Diesel and Cummins engines.

The Importance of Engine Rebuilds

If your engine needs more than just a simple repair, it may need to be rebuilt. If you experience excessive white smoke from the exhaust, knocking or tapping sounds, low oil pressure, and poor performance, it’s time to take your truck to the shop. Our mechanics at EIP Diesel Repair specialize in heavy-duty diesel engine rebuilds, and they can perform everything a diesel engine needs, including cylinder head repairs, fuel injector cleaning, valve train repairs, and glow plug replacements, among other services. 

Our Conversion Service

EIP Diesel Repair also provides conversion services for those looking to switch to another diesel engine or biodiesel. If the ladder is the case, retrofitted fuel lines, gaskets, and seals are required for engine compatibility with biodiesel fuel—at EIP Diesel Repair, we have the experience and equipment to get the job done right. If you're considering switching from Cummins to Detroit Diesel or diesel to biodiesel, trust EIP Diesel Repair to help you with the conversion process.

Contact Us for Diesel Engine Repair Service today!

Need engine work? Come by EIP Diesel Repair in Fontana, California today!


We Offer Top-Rated Heavy-Duty Diesel Mechanic Services

EIP Diesel offers a wide-range of diesel mechanic services. Our full-service heavy-duty repair shop provides repair and maintenance for all types of diesel vehicles, from semi truck trailers & buses, to RV's & heavy equipment. We have all the tools & tech needed to perform top-rated repairs on all makes & models. We are centrally located in Fontana, CA, and are proud to keep the surrounding areas of San Bernardino, Riverside, Anaheim, Rancho Cucamonga, & more moving safely!

Customers Reviews

Really good Heavy duty diesel mechanics, its my go to place to service my truck. Honest and reliable.
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A+ Mechanics. I've been in the trucking industry for 30 years. The entire team at EIP Diesel repair have proved to be honest, knowledgeable and on schedule.  They have overhauled 3 different trucks for me, and the performance is on point.
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Juan Roberto Avilo Nuno

Great place anything from a oil change to a overhaul they can do it all 100% recommended.
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Ismael Becerra


Contact Us

Contact us today to schedule service or with any questions.

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16144 Boyle Ave, Fontana, CA 92337
Truck mechanics at EIP Diesel Repair