Fleet Diesel Repair Services in Southern California

Managing a fleet of diesel vehicles requires reliability, consistency, and fast response when problems arise. California Mobile Fleet provides professional fleet diesel repair services for trucking companies, logistics providers, construction fleets, and owner managed fleets throughout Southern California. Our mobile first approach  minimizes downtime, reduces operational costs, and keeps your trucks compliant, safe and on the roads. 

We work as an extension of your operation, delivering dependable diesel repair support directly to your yard, terminal, job site, or breakdown location.

Reliable Diesel Repair Support for Commercial Fleets

Fleet trucks experience constant wear due to long hours, heavy loads, and tight delivery schedules. Unexpected breakdowns can disrupt operations, delay shipments, and increase costs. Our fleet diesel repair services are designed to address both urgent mechanical issues and recurring problems that impact truck performance.

By providing on site repair and diagnostics, we help fleet managers reduce unnecessary towing, shorten repair cycles, and maintain greater control over truck availability.

Mobile Fleet Diagnostics and Mechanical Repairs

Modern fleet vehicles rely on advanced electronic and emissions systems that require accurate diagnostics. Our service trucks are equipped with professional diagnostic tools and manufacturer level software, allowing our technicians to identify issues quickly and precisely.

We support mobile diagnostics and repair for a wide range of fleet related diesel systems, including engines, transmissions, drivetrains, and electronic control systems. This allows us to complete many repairs on site, helping fleets avoid extended downtime associated with repair shop visits.

Diesel Engines and Fleet Equipment We Service

California Mobile Fleet provides fleet diesel repair for a wide range of diesel engines and vehicle platforms commonly used in commercial operations. Our technicians service engines from Mack, Volvo, Detroit Diesel, International, Cummins, PACCAR, Hino and Isuzu.

We also provide diagnostic and repair support for Allison and Eaton transmission systems, along with clutch assemblies, rear end components, and other drivetrain systems critical to fleet reliability.

Emissions, After-Treatment, and CARB Compliance

Fleet vehicles operating in California must meet strict emissions standards. After-treatment system issues involving DPF, DEF, and SCR components are a frequent cause of derates, check engine lights, and compliance concerns.

Our fleet diesel repair services include mobile after-treatment diagnostics and repairs to help fleets address emissions related issues efficiently. We also assist with CARB Clean Truck Check readiness and compliance support to reduce the risk of fines, violations, or trucks being placed out of service.

Reducing Downtime and Avoiding Disruptions

Fleet downtime impacts productivity and profitability. Our mobile diesel repair model allows many issues to be resolved at your fleet location, minimizing disruption to routes and schedules. When a repair cannot be completed on site, we coordinate towing and follow-up service to ensure the fastest possible return to operation.

Our goal is to help fleets maintain consistent uptime while controlling repair related expenses.

Fleet Repair Support for All Fleet Sizes

We work with fleets of all sizes, from small owner operated groups to larger commercial fleets. Our mobile services scale to match your needs, whether you require occasional repair support or ongoing fleet service coverage.

Fleet managers benefit from clear communication, service documentation, and dependable response times, while drivers receive professional service focused on safety and reliability.

Why Fleets Choose California Mobile Fleet!

Fleet operators choose California Mobile Fleet for dependable service, technical expertise, and a mobile diesel repair approach designed to reduce downtime. Our experience across multiple diesel platforms allows us to deliver consistent results while maintaining compliance with California regulations.

We focus on building long term relationships by providing reliable support that fleet managers can trust.

Request Fleet Diesel Repair Services Today!

If your fleet requires dependable diesel repair support, California Mobile Fleet is ready to help. Our fleet diesel repair services are available for on site repairs, diagnostics, and time-sensitive breakdown support throughout Southern California.

Contact us today to discuss your fleet needs and keep your vehicles operating at peak performance.