Diesel Mechanic Salary Guide
National median: $61,770/yr · Range: $46,945–$77,830 · Source: BLS OEWS May 2025
Last updated: 2026-07-04
National Diesel Mechanic Salary Overview
Data: BLS Occupational Employment & Wage Statistics, May 2025 OEWS. O*NET code: 49-3031.00. SOC occupation: 49-3031 (Diesel Mechanic).
Diesel Mechanic Salary by City — Top 20 Metros
| Metro Area | 25th Pct | Median | 75th Pct |
|---|---|---|---|
| San Jose, CA | $74,400 | $88,980 | $96,430 |
| Seattle, WA | $71,810 | $82,330 | $97,190 |
| San Francisco, CA | $62,610 | $82,100 | $98,060 |
| Los Angeles, CA | $62,160 | $77,380 | $85,280 |
| New York, NY | $61,440 | $75,780 | $88,760 |
| San Diego, CA | $62,280 | $75,070 | $83,350 |
| Denver, CO | $61,990 | $72,800 | $82,320 |
| Chicago, IL | $58,080 | $65,680 | $83,900 |
| Philadelphia, PA | $55,850 | $64,550 | $76,770 |
| Phoenix, AZ | $54,010 | $63,330 | $74,620 |
| Columbus, OH | $51,750 | $62,190 | $73,370 |
| Indianapolis, IN | $50,210 | $61,710 | $73,330 |
| Jacksonville, FL | $52,630 | $61,470 | $75,230 |
| Austin, TX | $50,160 | $61,070 | $73,880 |
| Houston, TX | $49,810 | $60,770 | $74,500 |
| Nashville, TN | $52,150 | $60,760 | $75,120 |
| Dallas, TX | $48,520 | $60,390 | $72,590 |
| Fort Worth, TX | $48,520 | $60,390 | $72,590 |
| Charlotte, NC | $48,860 | $60,300 | $67,500 |
| San Antonio, TX | $47,420 | $58,620 | $70,650 |
Source: BLS OEWS May 2025 estimates. Click any city for detailed local salary data.
Diesel Mechanic Salary by Experience Level
| Level | Typical Salary | Years of Experience |
|---|---|---|
| Entry-level Diesel Mechanic | $44,474 | 0–2 years |
| Mid-level Diesel Mechanic | $56,828 | 3–5 years |
| Senior Diesel Mechanic | $72,888 | 5–8 years |
| Staff / Lead Diesel Mechanic | $87,713 | 8–12 years |
| Principal / Director | $103,773 | 12+ years |
Career path estimates derived from BLS OEWS May 2025 national benchmarks. Actual salaries vary by company, location, and skills.
Skills That Raise Diesel Mechanic Salary
Professionals with these skills typically earn 15–35% above the median:
- ASE T-series certifications
- Diesel emissions / aftertreatment diagnostics
- Hydraulics experience
- CDL (for road-testing repairs)
- Fleet preventive-maintenance experience
- Welding basics
How to Negotiate a Diesel Mechanic Offer
The most effective salary negotiation for Diesel Mechanic roles follows three steps:
- Anchor with data. Quote BLS OEWS median ($61,770) and top-metro benchmarks as your reference point. Numbers beat feelings.
- Frame with ROI. Describe a specific project outcome in dollar terms: "I reduced churn by 8%, which retained $2M ARR." This turns the conversation from cost to investment.
- Negotiate total comp. If base is firm, ask about sign-on bonus, equity refresh, additional PTO, or a 6-month review. Employers have more flexibility in these buckets.
Diesel Mechanic Salary by City — All 90 Locations
Median Diesel Mechanic pay in every metro we track, grouped by state (BLS OEWS May 2025).
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