Diesel Mechanic/Technician (2083)

Kooner Fleet Management Solutions•Fontana, CA

7d•Onsite

About The Position

Join Kooner Fleet Management Solutions as a Diesel Mechanic/Technician! Kooner FMS is a rapidly growing national provider of on-site fleet maintenance, preventative service, and mobile repair solutions. With nearly a decade of experience, we help fleets reduce downtime, extend vehicle life, and simplify operations. As a family-founded and field-first company, we pride ourselves on delivering trusted partnerships, exceptional service, and innovative fleet management solutions. This field-based role is ideal for skilled technicians who value independence and variety. You will be responsible for performing preventative maintenance, diagnostics, and repairs on Class 6-8 trucks, backed by a supportive team. You'll tackle new challenges daily and take pride in ensuring safe, reliable, and efficient service.

Requirements

At least 3 years of hands-on diesel tech experience working on Class 6-8 trucks.
DOT inspection and air brake repair expertise.
Strong communication skills.
Comfortable using mobile apps, navigation systems and digital tools.
Must be 23+ with a clean driving record and a valid driver’s license.
Must bring own hand tools.

Nice To Haves

Expertise in CNG engine systems is a huge plus.

Responsibilities

Perform onsite preventative maintenance, DOT inspections and follow up repairs on Class 6-8 trucks in a field environment.
Respond to dispatch requests for scheduled and unscheduled service or maintenance.
Diagnose and repair electrical, brake, cooling, and air systems.
Use advanced diagnostic tools, including handheld computers and precision instruments, to identify and fix issues.
Utilize hand tools, power tools, and welding equipment to complete repairs.
Road test vehicles to ensure repair quality.
Meet or beat industry-standard repair times.
Support team members as needed.