Mack Truck Repair Specialists in Willows, CA & Across Northern California

Providing services throughout Northern California, with Mobile DIesel mechanics in Willows, Red Bluff, Corning, Oroville, Biggs & Yuba City, CA

At L & T Truck Repair, our dedicated team of certified technicians specializes in providing repair and maintenance services for Mack-brand trucks. These trucks require an understanding of their unique engineering to maintain peak performance.

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The Hallmarks of Mack Trucks

Mack trucks are a paragon of American ingenuity and strength, so they demand a certain caliber of service to uphold their performance legacy. Our facility is fully equipped to address the full spectrum of Mack truck needs, from the MP8 engine, known for its power and fuel efficiency, to the mDRIVE transmission that provides seamless shifting and optimal fuel economy.

Engine Diagnostics and Repair

A Mack truck's heart lies in its engine, and our advanced diagnostic tools are designed to communicate precisely with Mack systems. We diagnose complex issues with accuracy and provide comprehensive solutions. Whether dealing with the nuanced Turbo compounding technology in the MP series engines or intricate after-treatment systems, our team ensures every component operates flawlessly.

Transmission Excellence

The mDRIVE transmission, a staple in Mack trucks, offers unparalleled efficiency. At L & T Truck Repair, we service this key component with meticulous attention to detail, ensuring that the automatic gear-shifting mechanism maintains its precision to provide drivers with a comfortable and efficient ride.

Suspension and Chassis Care

Understanding that the suspension and chassis of a Mack truck are critical to its durability, especially when navigating challenging terrains, we offer specialized services to maintain and repair these components. Our technicians ensure a smooth and stable ride from leaf springs to Mack's proprietary air suspension systems.

Brake Systems: A Safety Priority

Safety on the road is non-negotiable, and the braking systems in Mack trucks are central to this tenet. We service Mack's foundation brakes, air disc brakes, and ABS systems, emphasizing responsiveness and reliability to ensure your safety at every turn.

Electrifying Fleet Health with Electrical Services

Mack's integration of advanced electrical systems in their trucks, including the GuardDog Connect telematics, calls for expert handling. Our electrical services include battery checks, alternator repairs, and wiring inspections, keeping your Mack's electrical components in prime condition.

HVAC Systems for Driver Comfort

Driver comfort is paramount in heavy-duty operations. Mack trucks have sophisticated HVAC systems that require regular service to ensure a comfortable cabin environment. We handle everything from refrigerant recharges to complex repairs, ensuring your comfort is never compromised.

Regular Maintenance: The Key to Longevity

Regular maintenance is the lifeline of any heavy-duty truck. We provide comprehensive service plans tailored to the needs of Mack trucks, encompassing oil changes, fluid checks, and filter replacements, all to prevent costly repairs and extend the life of your vehicle.

Schedule Your Appointment Today

At L & T Truck Repair, we understand the intricate craftsmanship of Mack trucks. Our services ensure that your Mack remains a reliable asset in your fleet, delivering the performance and durability the brand is known for. Maintaining a Mack truck is about respecting its design and ensuring every journey is as impeccable as its first. Visit us in Willows, CA, for a service experience that matches the excellence of your Mack truck.

Our Diesel Mechanic services

At L & T Truck Repair, we understand the intricacies and demands of diesel engines and their vast systems. We pride ourselves on offering comprehensive diesel mechanic services tailored to meet the needs of your diesel trucks, trailers, and fleet vehicles. Our state-of-the-art facility is equipped with advanced diagnostic tools and staffed by ASE-certified technicians committed to ensuring your diesel vehicles operate at peak performance.

Customer testimonials

"We were stuck at Walmart and Andrew from L & T trucking came through and saved the day. What a great guy he was in a good mood and made everybody feel comfortable that things were gonna work out. Thank you Ellen T we will always recommend you and use your services."
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Matthew Evans

"Our motorhome broke down on interstate 5. Dispatcher was very helpful finding a diesel repair shop and had a tow truck there to tow us to Redding CA. James the tow truck driver was wonderful.  Very helpful. Thank you so very much."
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Sally Thomsen

"Levi and the guys at L & T Truck Service did an awesome job getting Bird Dog Fire's Engine 627 back online to continue working the August Complex fire after 14 days of abuse on the fireline and 5 days of travel from Florida."
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Carlos Gutierrez

"Very happy with the service, if ever needed again I will definitely go back!"
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Heather Alvarez

Had a great experience with L & T Truck Repair? Let us Know!

Contact & Location

For heavy-duty truck repair and fleet services in Northern California, visit our shop in Willows, CA, or request service from our mobile diesel mechanic team in Red Bluff, Corning, Biggs, Oroville & Yuba City, CA. Give us a call, send us an email, or fill out our service request form!


Mon - Fri: 7am - 4pm
Mobile Services - 24/7
After hours by appointment only