The worlds most robust repair & parts platform

Accelerate your business with the widest and deepest set of repair information you need – saving time and money in the process. Want to learn how?

One app. All the tools.

Sign into Diesel Repair from your desktop or mobile device to instantly access our vast library of repair information. When you need wiring diagrams, fault code step-by-step directions, remove and replace information, and much more … it’s right here under the hood of Diesel Repair.


Everything you need to fix it right.

Discover the powerful time and money-saving tools that come with Diesel Repair.

Truck Fault Codes

We have all known diagnostic fault codes for commercial trucks from when ECMs were first introduced all the way up to the current year and models.

Wiring Diagrams

Color-coded, high resolution diagrams help you fix the problem fast. Don’t know where the wires are? Our component locators help you find where on the vehicle they’re tucked away.

Symptom-Based Troubleshooting

Enter your symptoms and quickly access possible causes as well as steps to diagnose and repair the issue. Print and save the details for easy retrieval. 

Technical Repair Docs

Millions of tech repair docs filled with engine specs, torque specs, maintenance intervals, remove and replace instructions, recalls, and much more.

Truck Labor Times

Accurately quote high, average, and low labor times with our software that takes into consideration vehicle year, engine specs, and cab configurations. 

Testing Procedures

Our database of complete testing procedures includes tools needed, detailed testing instructions, and anything you need to know before you start. Crafted by the experts at Diesel Laptops, these procedures guide you through any fix. 

VIN Decoder

Our VIN decoder provides over 20 points of data for any VIN you throw at it including engine model, engine capacity, vehicle year, and much more. Decode your VIN and then easily one-click to wiring diagrams, fault codes, and tech docs for your vehicle.

Parts Cross-Reference

Take advantage of the industry’s largest HD parts database to cross-reference any OEM or aftermarket part. Over 2 million parts and 10 million crosses available!

Exploded Views

Find any part you need, even without a VIN! Our intuitive guided search and detailed exploded view diagrams make it easy to quickly find and confirm which parts you need.

Component Search

Starting with component groups, this tool rapidly narrows down your search based on component types and manufacturers.

By Measurement

Identify thousands of HD truck components by measurement with this industry-leading tool.


Used Components

We’ve partnered with TPI to give you the best selection of used engines and transmissions available on the market today.

What Does It Fit?

It happens all the time– somehow you end up with a random truck part on your shelf. You’re not sure what it fits, but you know you need it gone! What if you could put that part number into a website and find out exactly what makes and models it fits? This does that, in seconds.

Solutions in seconds.

Say goodbye to multiple OEM tools, slow software, wasted time and wasted money. With Diesel Repair you get everything in one place with our intuitive tools and lightning fast results. Whether you’re on desktop, laptop, tablet or cellphone – we’ve got you covered.

A fault code search in real-time shows the speed of Diesel Repair.

Trusted by diesel pros in every industry.

Join over 65,000 customers who rely on Diesel Repair every day.

We use Diesel Repair every day, gets the trucks in and out of the shop quicker.

Ken M.

It is literally the most helpful thing I have ever had.

James J.

Easy to use platform, from tablet to phone. Always has the info I need right at hand.

Kal J.

Whenever we use this site it has always had the information we’ve needed.

Scott H.

Even more tools to save time and money.

We’re not done yet…


Equipment Fault Codes

Diagnose and repair your heavy equipment with Equipment Fault Codes. We cover thousands of ECUs from every manufacturer to bring you the most complete fault code database available today. 

Diesel Dictionary

Next time someone mentions they operate a wiggle wagon or asks you to take a look at the pintle hook, look it up on the Diesel Dictionary for a quick and easy way to see what they’re talking about.

Customer Connect

Quickly find potential customers in your area in just a few simple clicks. Search by zip code, state, distance range, type of customer, and fleet size and instantly find customers near you!

Get 14 days free when you book a Diesel Repair demo today.

Schedule a free tour around the Diesel Repair platform and let us show you how our customers save time, money, and eliminate frustration when they can find repair information fast.

Diesel Laptops is a leading innovator in the diesel diagnostics and repair industry. We provide hardware and software tools empowering users to diagnose and repair their equipment any way they choose.


7440 Broad River Rd, Irmo, SC 29063

Copyright © 2024 Diesel Repair by Diesel Laptops