We Are KingFleet

Originally founded by Raul Martinez as RoadKing in 2000, what began as a single 1977 Chevy service truck twenty-two years ago has become today’s KingFleet. With 26 highly experienced diesel mechanics, the majority of which possess ASE or CTTA certification, and 150 years of experience between them, KingFleet has become a fully flexible mobile truck repair & roadisde assistance service that emphasizes punctuality and honors its commitments.

Mobile mechanic performing truck repair for fleet in California

How We Help Fleets
Across California

Mobile truck repair units from KingFleet
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24/7 Mobile Truck Repair & Roadside Assistance

Truck breakdown? We're here to answer your call 24 hours a day, 7 days a week, 365 days a year to get your truck & fleet back on the road as quickly as possible.

Multiple Mobile Diesel Mechanic Locations & Heavy Wrecker Stations

With technicians across California in 22 mobile locations, we've staffed and equipped ourselves with the latest equipment to ensure your truck repair or tow is handled as efficiently as possible.

Setting the Industry Standard for Emergency Breakdowns & Tows

Our heavy-duty tow operators service all types of commercial vehicles, including trucks, trailers, motor homes, tour buses, cranes and much more.

Mobile mechanic performing DOT Inspections in California

DOT Inspection

At KingFleet, we're not just about maintaining your truck and trailer in peak condition but also about ensuring they meet all legal requirements set by the Department of Transportation (DOT). Our comprehensive services extend beyond performing these inspections in-house, as we also specialize in mobile DOT inspections to keep your vehicles and fleets running safely and in-compliance while working with your schedule.

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Mobile mechanic performing general diesel repairs in California

General Diesel Repair

With continuous innovation and consistent flexibility, the team at KingFleet offers a wide variety of services for whatever your diesel vehicle needs no matter the size or complexity of the problem.

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Mobile mechanic performing lift gate repairs on truck in the Bay Area, California

Lift Gate Repair

A lift gate is an essential component of a diesel vehicle, as it is responsible for lifting and lowering the cargo bed. However, like any other mechanical component, lift gates can experience wear and tear over time and may require repairs or maintenance services. KingFleet specializes in lift gate repair and maintenance services for diesel vehicles. Our team of experienced mechanics is equipped with the latest tools and technology to diagnose and repair any issues with your lift gate.

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Mechanic performing mobile truck repair in California

Mobile Repair

At KingFleet, we understand the importance of time for businesses running diesel vehicles. Whether you're an owner-operator or manage a large fleet, unexpected repair needs can disrupt your schedule. That's why we offer top-notch mobile fleet maintenance services, bringing our expert technicians directly to you.

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Mobile mechanic performing preventive maintenance service on truck in San Diego

Preventive Maintenance

Neglecting regular maintenance for diesel vehicles can lead to increased repair costs and diminished performance over time. Proactively managing vehicle health through preventive maintenance is more cost-effective and vital in maintaining optimal vehicle performance.

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Mobile mechanic performing RV repairs in California

RV Repair

Although they come in all shapes and sizes, whether it’s just you or the whole family the RV is there to let you enjoy both all the comforts of home and the great outdoors. However, RVs require plenty of care and maintenance to ensure you can enjoy those comforts in peace without worrying about things breaking down. KingFleet offers comprehensive RV repair and maintenance services that will keep your RV in peak form so you can get back to enjoying your vacation.

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Mobile mechanic performing emergency roadside assistance service in California

Roadside Assistance

Being trapped on the roadside with a broken down vehicle, whether it’s mechanical or electrical, is a nightmare for anyone with a vehicle but especially those operating diesel trucks. These issues not only eat into your bottom line but can also jeopardize your client relationships. Let the team at KingFleet fix your truck’s issues so you can get back on the road as soon as possible and put money in your pocket.

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Tow truck service in California

Towing

When your truck’s issues prove to be too much for roadside fixes, you’ll often need a tow to get the vehicle back to your yard or the nearest repair shop. However, many towing services are separate from repair services meaning spending more funds you may not be able to afford especially if the towing distance is substantial. That’s why, in addition to repair services, KingFleet is also happy to offer in-house towing services so there’s no need to worry about separate costs for towing or waiting for a mechanic after the towing’s done.

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Mobile fleet repair services from KingFleet

Mobile Diesel Mechanic Services in California

Not only do our 26 technicians have a century and a half of experience between them, we’re also constantly innovating and adopting the latest technologies to better serve our customers. To get an idea of what the KingFleet team can do for you here are the services we offer.

Our Mobile Truck Repair Services in California

At KingFleet, our experienced mobile diesel mechanics are fully-trained and equipped to handle all of your trucks maintenance and repair needs. We use only the highest quality parts and fluids to ensure that your vehicle gets running at its best. From onsite engine repairs to suspensions & transmissions, trust KingFleet to handle your heavy-duty truck repairs today.

Truck axle

At KingFleet, located in Haywood, CA, we specialize in providing top-notch axle repair and maintenance services exclusively for diesel trucks and fleets. The axle ensures stability, handling, and the overall safety of your truck. Regular maintenance and timely repair of the axle system are essential to prolong the life of your vehicle and ensure optimal performance.

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Mobile mechanic performing coolant system repair on truck in Sacramento

The coolant system in a diesel vehicle is essential for maintaining the engine's optimal temperature. Neglecting this system can lead to overheating and significant engine damage, resulting in expensive repairs. KingFleet, a leader in diesel vehicle maintenance, offers comprehensive coolant system services, including convenient mobile fleet maintenance and traditional in-shop repairs.

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Mechanic performing driveline repair

In heavy-duty diesel trucks and fleet management, the driveline is not just a component; it's the backbone that keeps your vehicles running efficiently and reliably. At KingFleet in Haywood, CA, we specialize in providing top-tier driveline repair and maintenance services exclusively in-shop, ensuring your fleet operates at its best.

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Mechanic providing EGR & DPF services in California

Welcome to KingFleet, your trusted partner in Haywood, CA, for diesel truck and fleet maintenance. Our expertise is in repairing vehicles and ensuring their optimal performance and longevity. Two critical components in your diesel engine that demand regular attention are the Exhaust Gas Recirculation (EGR) system and the Diesel Particulate Filter (DPF).

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Diesel mechanic providing engine conversion in California

Our premier offering, engine conversion services for diesel trucks and fleets, represents the pinnacle of our commitment to innovation, efficiency, and reliability. This in-shop service is tailored to meet the unique needs of our clients, ensuring their fleets perform optimally in today's challenging business environment.

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Diesel truck engine repair

Rebuilding a diesel engine is not just about replacing parts; it's a comprehensive service that breathes new life into your diesel trucks and fleets. A diesel engine rebuild involves disassembling the engine, inspecting all components, cleaning them, and replacing worn or damaged ones. This process ensures your engine runs like new, increasing efficiency and reliability.

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Mobile mechanic performing engine repair on truck in California

KingFleet excels in providing comprehensive diesel engine services, with a special focus on mobile fleet maintenance alongside our traditional in-shop repair and maintenance solutions. Whether you're on the road or in our workshop, we ensure your diesel engine receives top-tier care.

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Mobile mechanic performing exhaust repair on truck in California

The exhaust system of a diesel vehicle, integral to its performance and emission control, plays a critical role. It removes harmful gasses and pollutants, enabling smooth and efficient operation. However, damage or wear can occur due to continuous usage and environmental exposure. KingFleet stands out in providing specialized diesel exhaust system repair and maintenance services, both mobile and in-shop.

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Mobile mechanic performing AC repair on truck in California

Heating, ventilation, and air conditioning (HVAC) systems are crucial in diesel vehicles to ensure a comfortable and safe environment for drivers and passengers. At KingFleet, we specialize in mobile and in-shop HVAC repair and maintenance services, recognizing these systems' critical roles. We aim to keep your truck's HVAC system functioning at its best, whether on the road or in our facility.

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Mobile mechanic performing oil & fluid service on truck in Orange County, CA

KingFleet, located in Hayward, California, is not just your traditional mechanic shop; we specialize in both in-shop and mobile fleet maintenance services. Our expert team is equipped to provide comprehensive maintenance for diesel engines wherever you are. With our mobile fleet services, we bring our top-rated maintenance solutions directly to you, ensuring minimal downtime and maximum efficiency for your vehicles.

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Mobile mechanic performing suspension repair on truck in California

KingFleet stands at the forefront of diesel vehicle care, extending our expertise to both in-shop and mobile fleet maintenance services. We recognize the unique demands placed on diesel engines and are equipped with the latest technology to deliver unparalleled suspension maintenance and repair services. Our experienced mechanics are specifically trained to address the distinct needs of diesel vehicles, ensuring optimal performance and longevity.

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Mobile mechanic repairing a truck transmission in California

Ensuring your diesel vehicle's smooth and reliable performance hinges significantly on regular maintenance of its transmission and clutch. KingFleet delivers first-rate services for both in-shop and on-site mobile fleet maintenance, keeping your diesel vehicles in peak condition.

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Mobile Maintenance & Repair for Your Commercial Truck Fleet

If you’re a fleet manager, one of the most important responsibilities you have is to ensure that your fleet or fleets are well-maintained to prevent breakdowns and avoid costly repairs. KingFleet offers a comprehensive range of fleet maintenance services that cater to the specific needs of diesel trucks and trailers. These services include preventive maintenance, inspections, repairs, and fleet management.

Why Choose KingFleet?

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David Townsend

"After speaking with upper management about my issue I must say he made it right. I was not charged so I must amend my initial review.  The guy was very apologetic about the problem . Thank you sir for resolving this"
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Norma Lee

"So pleased to find expert semi truck repair in the Los Angeles area....AND on the weekend!!! What a God send!! My starter went out unexpectadly under a time sensitive load. KingFleet was unknown to me at the time, I found them on Google"
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Maria Comoe

"I called King Fleet as I was in search of a place to repair a tire on my car. Although they service rigs or large trucks the person who answered the call searched for a location for me"
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Ernesto Serra

"Jason from San Diego came out to help and was super fast and super awesome !"
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Mike Carr

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"Prompt response and repair time. Dispatch personell was very helpful. Technician was very helpful, knowledgeable and courteous."
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Nancy Staack

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"Great service. The mechanic knew his stuff and was extremely nice."
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Contact Us to Schedule Service

Call us for 24/7 roadside assistance or schedule your equipment in for a mobile repair or service using our service request form.

KingFleet Call Center:

626-281-5540

Service Areas (Within a 50mi Radius):

Northern California, CA:
Bay Area & Sacramento Valley

San Diego, CA

Orange County, CA

Inland Empire, CA

Phoenix, AZ

24/7 Breakdown Assistance
Including Statutory Holidays