Best Trailer Service & Repairs in Los Angeles, CA

Our dedicated team is available from 7 am to 7 pm, Monday to Friday, with services available by appointment only on Saturdays. We understand the demands of the trucking industry and strive to be as accommodating as possible to your schedule.

A Plus Mobile Maintenance operates without a physical shop, offering exclusively mobile services. We service a 50-mile radius around Brea, CA, bringing our top-tier diesel repair services directly to you, wherever you are within our service area.

The Diesel Particulate Filter (DPF) is a crucial component in reducing emissions from diesel engines. It captures soot and exhaust particulates before they can be released into the atmosphere. Regular maintenance and cleaning of your DPF are vital to ensure your engine runs efficiently and meets emission standards, helping to protect the environment and maintaining your vehicle's compliance with federal and state regulations.

If you notice a red puddle under your truck, it's likely indicating a leak of transmission fluid. This fluid is essential for the smooth operation of your truck's transmission, allowing gears to shift smoothly and maintaining the health of the system. A leak can lead to significant transmission damage if not addressed promptly. It's important to have leaks checked and repaired by professionals like us at A Plus Mobile Maintenance to prevent more serious issues.

Air suspension uses airbags to provide a smooth ride and can be adjusted for different loads, enhancing the versatility and comfort of the vehicle. Leaf spring suspension, on the other hand, utilizes layers of steel strips known as leaf springs to absorb bumps and shocks. While leaf springs are known for their durability and strength, air suspension offers superior ride quality and load-handling flexibility.