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24/7 Mobile Diesel Truck Repair in Denver CO
Roadside Service for Fleets & Owner-Operators — Quick Dispatch, No Tow Required
ASE-Certified Techs | On-Site Repairs | No Tow Needed | Serving Denver, Boulder & Westminster
- Roadside Repairs for Heavy-Duty Trucks
- 24/7 Emergency Dispatch in Denver Area
- On-Site Diagnostics & Minor Repairs
- DOT & Compliance Repairs Available
- Trusted by Local Fleets & Owner-Ops
- Diesel-Only – We Don’t Do General Auto
- Fair, Transparent Pricing – No Hidden Fees
- Proudly Serving Denver Metro Area
Tell Us What's Wrong - We'll Send Help Fast
We’ll review your request and dispatch a mobile diesel tech to your location ASAP.
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Top Diesel Truck Repair in Denver – Semi & Heavy-Duty Specialists
- Full-Service In-Shop Repairs
- Diesel Specialists – ASE Certified Technicians
- Transparent Pricing – No Hidden Fees
- Trusted by Fleets & Owner-Operators
- Convenient Location Near I-70 & I-25
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Mobile Diesel Repair Services – We Come to You in Denver
Roadside Repairs • Emergency Diagnostics • 24/7 Mobile Response
Our mobile diesel repair team in Denver delivers on-site diagnostics and emergency repairs for semi trucks and heavy-duty diesel vehicles. Whether you're stuck roadside or in a lot, our mobile diesel mechanics come to you equipped with tools, parts, and expertise — no towing required. Call Today and lets get you back on the road!
In-Shop Diesel Repair Services In Denver CO
Complete Diesel Repair Services - For Semi & Heavy-Duty Trucks
We offer semi truck repair in Denver for owner-operators, fleets, and heavy-duty diesel vehicles. As a trusted provider of diesel engine repair services, we handle everything in-shop — including diagnostics, turbo repair, DPF and DEF system service, fuel system troubleshooting, and transmission repairs.
24/7 Emergency Roadside Diesel Repair
Our mobile diesel mechanics are available 24/7 for emergency truck repairs in Denver. We dispatch fast to get you back on the road — no tow needed.
Mobile Engine Diagnostics/Troubleshooting
We perform on-site diesel engine diagnostics using professional-grade scan tools. Quickly pinpoint issues with check engine lights, power loss, or sensor faults.
DPF & DEF System Troubleshooting
Avoid regen failures and fault codes. We diagnose and repair DEF dosing issues, DPF filter problems, and aftertreatment codes roadside.
Check Engine Light Diagnostics
We come to you and scan your diesel truck’s check engine light codes on-site. Our certified techs identify the issue fast—no guessing, no tow. Serving Denver.
Engine Diagnostics For Diesel Trucks
We use advanced diagnostic tools to pinpoint engine issues in all makes of semi trucks and diesel vehicles. Whether you're seeing check engine lights, power loss, or performance drops — we’ll find the problem fast.
Turbocharger Repair & Replacement
Loss of boost or strange noises? We specialize in turbo repair for diesel engines, including full replacements for heavy-duty and commercial trucks. OEM-grade parts and expert installation available in-shop.
DPF Cleaning & Filter Regeneration
Our in-house DPF cleaning service restores diesel particulate filters to full efficiency. Avoid performance issues and emissions fines with proper filter regen and inspection.
DEF System Diagnostics & Repair
We troubleshoot and repair DEF system problems including sensors, injection faults, and warning codes. Serving Denver diesel trucks with full in-shop emissions support.
Turbocharger Issues
Loss of boost or turbo lag? We inspect and replace key turbo components roadside to restore performance and avoid costly towing.
Electrical Diagnostics & Repairs
We resolve electrical issues like sensor faults, ECU communication errors, lights, fuses, and battery charging problems — at your location. connect to computer and check for check engine light codes.
Battery Replacement & Jumpstarts
Dead battery? No problem. We’ll send a mobile tech with replacement batteries or perform a quick jumpstart to get you rolling.
Air & Brake Line Repairs (Minor)
We fix leaks in air lines, fittings, and brake hoses on-site. DOT-compliant repairs available on the roadside — fast and safe.
Valve Adjustment & Cylinder Head Services
Get smooth power and extended engine life with precise valve lash adjustments and cylinder head work. We handle resurfacing, gasket replacement, and rebuilds for most diesel engines.
Electrical System Diagnostics/Troubleshooting
Avoid downtime with accurate diesel electrical diagnostics. From wiring harness issues to ECU communication faults, we identify and resolve complex electrical problems quickly.
Diesel Engine overhaul
For high-mileage or failing engines, we offer full diesel engine overhauls — in-shop, by ASE-certified mechanics. We service Cummins, Detroit Diesel, Caterpillar, Volvo, Paccar, Izuzu, and Mack engines
Radiator Replacement/Cleaning Services
Overheating? We replace and service diesel truck radiators for semi and heavy-duty trucks. Fast turnaround with quality parts that keep your rig running cool.
Mobile Lockout Assistance
Locked your keys in the cab? We offer diesel truck lockout service in Denver with fast access tools — no damage.
Cooling System Checks & Leaks
Overheating? We inspect radiators, hoses, and coolant levels on-site and offer temporary roadside solutions when a shop isn’t nearby.
PM Services & Maintenance
We provide basic preventive maintenance like oil top-offs, filter swaps, and fluid checks — done right at your yard or jobsite.
Fuel System Diagnostics/Troubleshooting
We diagnose and repair diesel fuel system issues on-site. If your semi or heavy-duty truck won’t start or is losing power, our mobile diesel mechanic in Denver can pinpoint the issue and get you moving again — no shop needed.
Suspension & Steering Repair Services
We diagnose and repair suspension and steering issues in heavy-duty and semi trucks. From kingpins and tie rods to driveline replacement, we’ll get your rig driving smooth and safe again.
Air/Hydraulic Brake Services
We provide full-service brake repair and replacement for semi trucks and diesel vehicles — including air brake systems, slack adjusters, and brake drums and disc brakes. Keep your truck DOT-compliant and safe on the road.
Diesel Transmission Services
For high-mileage or failing engines, we offer full diesel engine overhauls — in-shop, by ASE-certified mechanics. We service Cummins, Detroit Diesel, Caterpillar, Volvo, Paccar, Izuzu, and Mack engines
Fuel System Diagnostics/Troubleshooting
Rough idle? Loss of power? We troubleshoot and service diesel fuel system problems including injectors, fuel pumps, filters, fuel tanks and lines — all in-shop and on the spot.
Why Choose Our Mobile Diesel Repair Team in Denver?
24/7 Mobile Diesel Mechanics – Trusted Roadside Service for 10+ Years
Our mobile diesel mechanics in Denver deliver fast, reliable roadside repairs when your rig breaks down. With over 10 years of experience in diesel systems, we show up equipped and ready — whether it’s a sensor fault, DEF issue, turbo failure, or electrical problem. Local truckers and fleet drivers trust us to respond quickly, diagnose accurately, and get them back on the road without a tow.
- 20+ Years Diesel Experience
- Fast Response Anywhere in Denver
- Fully Equipped Mobile Units
- 24/7 Availability — No Appointments Needed
- Honest, Transparent Pricing
- Real Local Mechanics — No Dispatch Apps
Why Choose Diesel Repair Denver?
Trusted Diesel Repair Experts in Denver - Servicing Trucks for Over 10+ Years
Our shop has become the go-to solution for diesel truck repairs in Denver thanks to our experience, efficiency, and integrity. We specialize in everything from semi truck engine diagnostics to emissions-related repairs. Local operators and fleets trust us for quick turnaround times and quality work that lasts.
- 10+ Years Heavy-Duty Repair Experience
- 20+ Years Heavy-Duty Repair Experience
- Same-Day In-Shop Appointments Available
- Transparent Pricing & Detailed Diagnostics
- Located in Denver, CO – Fast Access to I-70 & I-25 Corridors
Need Roadside Diesel Service in Denver? We’re on the Way.
Get Fast Diesel Truck Repair in Denver CO
Trusted In-Shop Repairs for Heavy-Duty & Semi Trucks
We specialize in in-shop diesel truck repair in Denver for semi trucks and heavy-duty vehicles. Need diagnostics, engine work, or emissions service? Call now or fill out the form to get a fast, accurate quote.
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Mobile Repairs for Engine Issues, Fault Codes, and More — 24/7 Dispatch
Breakdowns happen—our mobile diesel techs are ready. We respond fast to service calls in Denver so you aren't waiting. We fix check engine lights, fault codes, DPF issues, power loss, and more. No tow? No problem. Submit the form now and we’ll roll out.
Why Diesel Truck Owners Trust Us
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Mobile Diesel Repair – Serving the Greater Denver Area
Local Service Area
Fast, On-Site Repairs Anywhere in Denver
Our mobile diesel techs provide 24/7 roadside repair throughout Denver, CO. Whether you're broken down on I-25, stuck at a shipper near Commerce City, or need service in a lot near Lakewood — we come to you. No shop visit needed.
We do not dispatch outside the Denver metro area. Local calls only.
Phone: (720) 477-7781
Location: 4800 E Evans Ave, Denver, CO 80222
Common Areas We Serve:
- Denver
- Downtown Denver
- Commerce City
- Lakewood
- Thornton
- Aurora
- I-70 & I-25 Corridors
Business Hours
- Mon - Fri
- -
- Saturday
- -
- Sunday
- Closed
Proudly Serving Diesel Truck Owners in Denver, CO
We provide in-shop diesel repair services for heavy-duty and semi trucks exclusively in Denver. Our shop is conveniently located with fast access to major routes including I-70 and I-25.
No mobile repairs. No out-of-area service.
Just honest, expert diesel repair for local truck owners and operators.
Phone: (720) 477-7781
Location: 4800 East Evans Avenue, Denver, Colorado 80222, United States
Business Hours
- Mon - Fri
- -
- Saturday
- -
- Sunday
- Closed