Commercial Truck and Fleet Repair You Can Depend On
Serving Southern California fleets with experienced heavy-duty repair, preventive maintenance and commercial vehicle inspection support since 1990.
More Than Three Decades of Commercial Fleet Experience
Interstate Fleet Maintenance, Inc. began as Interstate Truck & Trailer in 1990 and has grown into a full-service commercial fleet maintenance facility serving truck owners, fleet operators and transportation businesses throughout Southern California. Located in South Gate, California, our approximately 1.2-acre facility operates 10 service bays staffed by experienced repair personnel dedicated to keeping commercial vehicles on the road.
Learn About Our Facility
Heavy-Duty Repair and Fleet Maintenance Services
We service commercial trucks, tractors and fleet vehicles with a focus on diesel engine repair, preventive maintenance and inspection readiness.
Heavy-Duty Diesel Engine Repair
Comprehensive engine repair for commercial trucks and heavy-duty vehicles, including diagnosis and repair of diesel engine systems.
Preventive & Routine Fleet Maintenance
Scheduled maintenance programs designed to reduce downtime and extend the service life of your commercial fleet.
Engine Diagnostics
Advanced diagnostic services to accurately identify engine faults, fault codes and performance issues in commercial diesel vehicles.
One-Box & Aftertreatment System Service
Service and repair of diesel aftertreatment systems including one-box units, DPF, SCR and related emissions components.
Drivetrain Repair
Diagnosis and repair of drivetrain components including axles, driveshafts and related systems on commercial vehicles.
Transmission Service
Transmission inspection, service and repair for commercial trucks, including Eaton transmission systems.
Commercial Vehicle Inspection Preparation
Assistance preparing commercial motor vehicles for BIT and federal annual inspections, identifying and correcting mechanical deficiencies.
Fleet Maintenance Assistance
Ongoing maintenance support for fleet operators managing multiple commercial vehicles and transportation equipment.
Experience, Capacity and a Commercial Fleet Focus
Fleet managers and truck owners throughout Southern California rely on Interstate Fleet Maintenance for dependable workmanship, experienced technicians and a facility built for commercial vehicle service.
In operation since 1990, formerly as Interstate Truck & Trailer — with decades of hands-on commercial fleet experience.
Our approximately 1.2-acre facility operates 10 service bays capable of handling commercial trucks and heavy-duty vehicles.
13 certified mechanics supported by parts runners, tool and parts locators, and licensed Class A drivers.
We specialize in commercial fleet maintenance — not passenger vehicles. Our team understands the demands of keeping fleets operational.
Experience servicing PACCAR, Detroit Diesel DD13, DD15 and DD16, Cummins ISX and ISB, and Eaton transmission systems.
Conveniently located in South Gate, CA — serving fleet operators and truck owners across Los Angeles County and the surrounding region.
Inspection Preparation and Repair Support
Interstate Fleet Maintenance assists commercial motor carriers with vehicle inspection preparation, identifying repair needs and correcting mechanical deficiencies. We support compliance with the California Basic Inspection of Terminals (BIT) program and federal commercial vehicle inspection requirements under 49 CFR Part 396.
Interstate Fleet Maintenance is a commercial repair facility. We do not guarantee inspection outcomes. Inspection authority rests with the relevant regulatory agencies.
Learn About Inspection ServicesReady to Schedule Service?
Contact our South Gate facility to discuss your fleet's maintenance and repair needs. We work with fleet operators, owner-operators and commercial transportation businesses.
Find Us in South Gate, California
Interstate Fleet Maintenance, Inc.
Address
10040 Miller Way, South Gate, CA 90280
Telephone
(562) 927-6549Hours
Contact us for current hours and availability.