DIESEL ENGINE & Generator REPAIR Experts
Get authroized generator repair, and Cummins diesel engine repair services in Utah
25+
Years of Experience
Cummins
Authorized Power Generation Dealer
Mobile
Job Site Repairs
What is WB Engine Repair?
WB Engine Repair specializes in diesel engine repair for trucks, buses, RVs, and heavy equipment, alongside sales and service for Cummins Onan generators. Based in Utah, we offer mobile and on-site repair services across Utah, Idaho, and Wyoming, ensuring reliable power and performance for commercial and residential clients.
WB Engine Repair
If you have truck or piece of equipment that has a diesel engine in it, WB Engine Repair can diagnose and fix it.
Our Mobile Diesel Engine Repair Service Comes to You - Saving time and money!
25 years of experience repairing mining equipment at Kennecot Mine
Advanced equipment to diagnose the diesel engine right the first time
Cummins authorized dealer for generator sales and repairs
Diesel Engine Repair Services
Mobile Load Bank Testing for Generators Up to 200 kW
Load Bank Testing for Commercial, RV, Trailerized and Portable Generators
WB Engine Repair provides mobile load bank testing for commercial standby generators, trailer-mounted generators, RV generators, portable generators, construction equipment and other generator systems. By applying controlled electrical demand, we can evaluate how the generator performs under load, identify hidden operating problems and recommend maintenance or repairs before dependable power is needed.
Authorized Dealer for:
Mobile Service Area
WB Engine Repair provides mobile diesel repair throughout the entire state of Utah, including
Salt Lake City
Kearns
West Valley City
West Jordan
Sandy
Draper
Summit County
Southern Utah
The entire state of Utah
We also provide mobile service to qualifying locations throughout:
Wyoming
Idaho
If you're unsure whether we travel to your area, contact us to discuss your location.
Schedule Your Diesel Engine or Cummins Onan Generator Repair Today
Whether you need roadside diesel repair, heavy equipment service, Cummins engine diagnostics, or Cummins Onan generator repair, WB Engine Repair is ready to help. Get experienced mobile diesel service throughout Utah, Idaho, and Wyoming.
Testimonials
Caterpillar Equipment Diesel Engine Repair Service Reviews
Don't Just Take Our Word For It
FAQ's
Frequently Asked Questions
What diagnostic tools do you use for Cummins engines?
We use OEM-level Cummins diagnostic software and procedures, ensuring accurate troubleshooting across ISB, ISL, X15, QSL, QSX, QSK and more.
Can you fix DPF, SCR, and DEF aftertreatment problems?
Yes. Aftertreatment failures cause many derates. We repair DPF, SCR, DEF dosing, sensors, regens, and emissions-related issues using proper Cummins service methods.
Can you rebuild or overhaul an engine on-site?
In many cases, yes. We perform on-site in-frame rebuilds, component replacements, and major repairs depending on equipment and conditions.
Do you service equipment too large to transport?
Absolutely. We repair haul trucks, mining excavators, and other diesel engine machinery where they sit.
What are the most common diesel engine failures you see?
Common diesel engine issues include power loss, aftertreatment faults, fuel injector problems, turbocharger failures, cooling system issues, electrical or sensor faults, and failed regens. Many of these problems are interconnected, which is why proper diagnostics are essential before repairs begin.
Can WB Engine Repair work on any brand of diesel engine?
Yes. While WB Engine Repair specializes in Cummins engines, we have over 25 years of hands-on experience working across a wide range of diesel engine platforms. Our background includes extensive work on equipment from OEMs such as Komatsu, Hitachi, Atlas Copco, and other diesel-powered manufacturers. If your equipment runs on a diesel engine, we have the knowledge and experience to diagnose and repair it correctly.
How much does it cost to repair a diesel engine?
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How fast can you respond to a breakdown?
Utah locations often receive same-day or next-day service. Idaho and Wyoming scheduling depends on technician routing, and it's recommended to call for timing.
Do you provide repair documentation for fleets?
Yes. You receive complete digital repair reports for compliance, warranty tracking, and fleet maintenance logs.
How do you determine whether an engine should be repaired or rebuilt?
We evaluate engine condition using diagnostics, fault codes, performance data, and physical inspection. Factors such as engine hours, failure type, internal damage, and overall engine health all play a role. Our goal is to recommend the most practical and cost-effective solution based on long-term reliability—not just the fastest fix.
Schedule Your Diesel Engine or Cummins Onan Generator Repair Today
WB Engine Repair
5176 Liberator Dr Unit 106A, Kearns, UT 84118
(By appointment only)
