Heavy Truck Repair Services

Hydraulic Cylinder Repair

Truck Mounted Crane Repair

JE-CO Diesel Dyno & Emissions

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JE-CO RV Repair

JE-CO Heavy Duty Towing

Truck, Trailer, & Heavy Equipment Repair Shop in Denver, Colorado

We provide an integrated, one-stop approach to towing, service, repair, and maintenance with a focus on quality and customer satisfaction. For all your heavy-duty diesel truck & equipment repair needs, our mechanics will get the job done right.

  • Medium duty trucks
  • Heavy duty trucks
  • Trailers
  • Truck mounted cranes & conveyors
  • Loaders
  • Commercial & industrial equipment
(303) 623-7049Request Service

Truck Repair Services | Denver, CO

Brake Repair

Brake systems are a critical component of any light, medium, and heavy-duty truck and trailer. Brake systems that are not operating properly make it more challenging to slow down, take turns, and stop, putting the driver and other vehicles in danger.

DOT Inspections

Every commercial vehicle over 10,001 lb operating in the United States, or vehicles transporting hazardous materials regardless of weight, requires, at the minimum, an annual DOT inspection.

Diagnostics & Electrical Repair

At JE-CO Truck & Trailer, we specialize in finding solutions for complex, hard-to-diagnose problems. Your vehicle has several systems to alert you to issues, but there are a few warning signs that you should look for, and if found, address immediately:

Driveline Repair

We offer expert driveline system maintenance and repair services for light, medium, and heavy-duty diesel trucks that can save you from problems down the road.

EGR/DPF Cleaning & Repair

Most diesel vehicles often experience issues in their exhaust gas recirculation (EGR) and diesel particulate filter (DPF) system.

Electrical Repair

From starter service to alternator repairs to complex electrical issues, our ASE certified and DOT licensed electrical technicians are heavy-duty experts for your CAT, Cummins, International, Detroit Diesel, Hino, or Paccar engine.

Engine Conversions

Performing a diesel-engine swap isn’t easy. It takes time, knowledge, and patience. That's why we start every project with a conversation.

Exhaust & Aftertreatment

Exhaust and aftertreatment issues can lead to decreased power, acceleration, fuel economy and cause unanticipated downtime for your truck.

HVAC Systems Repair

Whether you're in the middle of a hot summer and in desperate need of air conditioning repair or bracing for a cold winter and need to ensure your heating system is performing properly, cabin comfort is one of the most important aspects for a driver.

Heavy Duty Repair, Overhaul & Rebuild

JE-CO Truck & Trailer rebuilds, repairs, and overhauls heavy duty diesel engines for all makes and models of trucks including Kenworth, Peterbilt, Mack, Hino, International, Isuzu, Volvo, Western Star, and more. We work on all the major engine brands including Detroit Diesel, Cummins, Caterpillar, Paccar, and Volvo.

Preventive Maintenance

An ounce of prevention is worth a pound of cure.The saying is never more true than when it comes to preventative maintenance (PM) on your commercial heavy duty truck.

Suspension Repair

Since the wear of suspension system components is gradual, it can be challenging to notice the signs of an issue until the damage is done. Scheduling an inspection of your suspension system with our experienced technicians today.

Transmission & Clutch Repair

Issues with your truck's transmission or clutch can put your vehicle out of service, costing you both time and money.

Truck Alignment

A wheel alignment can keep your car running safely and effectively by encouraging less tire wear, higher gas mileage, and safer driving conditions. Uneven tire wear may be caused by misaligned wheels.

Fleet Maintenance Program

Apply to JE-CO Truck & Trailer's fleet maintenance program to reduce unscheduled downtime, improve performance, control costs and simplify asset management.

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Denver, Colorado

JE-CO Truck & Trailer Repair in Denver, CO

JE-CO was founded over 40 years ago. Over the years, diesel maintenance and repair became the primary revenue stream, with ancillary services in metal fabrication (trailer flatbeds, pup trailers, and racks).

‍Austin White and Mike Schwarz lead JE-CO Truck & Trailer with an aim to build a brand based on genuine customer service, honesty, and quality.

Read the JE-CO Story

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Diesel Industry Articles

Exhaust And Aftertreatment System Repair

The Top Signs Your Exhaust And Aftertreatment System Needs Repair

Advanced aftertreatment systems have reduced heavy-duty truck emissions. They require proper care for safe operation and optimized performance. This article highlights signs of exhaust and aftertreatment system issues.

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Improving Fuel Efficiency In Your Heavy Equipment

How To Improve Fuel Efficiency In Your Heavy Equipment

Improve fuel efficiency in your heavy equipment to reduce costs and increase profitability. Implement these tips to manage fuel consumption and optimize operations for your fleet of heavy equipment. Maximize efficiency and minimize expenses with these fuel-saving strategies.

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Preparing Diesel Truck For Cold Weather

How To Prepare Your Diesel Truck For Cold Weather

Proper truck maintenance matters all year round. It’s especially critical when the weather cools down, though. Do you know how to prepare a diesel truck for winter? If not, this guide is for you. Below, you’ll learn ten essential steps every truck driver should take to weather the winter safely.

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