Senior Diesel Equipment Technician

Sunstate Equipment; Phoenix (AZ); On-site; USD 83,097,000 - 114,616,000; Full time

Benefits offered by this job

Uniforms provided and cleaned for free

Work boot allowance

Rent equipment for free

Prescription safety glasses free

Overtime vacation averaging benefit

Medical, dental, and vision insurance

401(k) with company match

7 holidays + generous paid time off

Vacation PTO first year

Sick leave and personal time

Job summary

Sunstate Equipment Co. is seeking a skilled Technician III in Phoenix to perform repairs on diesel engines, hydraulics, and electrical systems for construction equipment and trucks. The role requires hands-on diagnostics, routine maintenance, and timely repairs to meet manufacturer specs.

Candidates should have 3+ years in diesel repair, own tools, and familiarity with Tier 4 aftertreatment. Strong troubleshooting, welding, and maintenance record-keeping are essential.

Qualifications

• Minimum of 3 years as a diesel mechanic on heavy construction equipment or rental fleets.
• Experience with hydraulic, electrical, pneumatic systems and diesel/gas engines on construction equipment and trucks.
• Experience with Tier 4 engines and aftertreatment systems (DPF/SCR/DEF/EGR) is preferred.
• Strong troubleshooting, diagnostics, and heavy equipment repair skills.
• Must have own tools to perform repairs.

Responsibilities

• Perform minor and major repairs on gas and diesel engines, hydraulic, electrical systems, and drivetrains (manual and power shift transmissions).
• Troubleshoot/diagnose malfunctions and repair equipment.
• Perform novice level welding repairs (MIG & SMAW).
• Inspect, service, and test equipment to manufacturer specifications.
• Perform routine service: check/change fluids and lubricate.
• Maintain accurate maintenance/repair records including warranties.

Skills

Diesel mechanic

Hydraulic systems

Electrical systems

Pneumatic systems

Tier 4 engines

DX/diagnostic software

Troubleshooting

Welding (MIG/SMAW)

Preventive maintenance

Tools ownership

Tools

Diesel laptop experience

Diagnostic software

Job description

Sunstate Equipment Co. is seeking a skilled Technician III in Phoenix to perform repairs on diesel engines, hydraulics, and electrical systems for construction equipment and trucks. The role requires hands-on diagnostics, routine maintenance, and timely repairs to meet manufacturer specs.

Candidates should have 3+ years in diesel repair, own tools, and familiarity with Tier 4 aftertreatment. Strong troubleshooting, welding, and maintenance record-keeping are essential.