Monument Diesel

Diesel Truck Fleet Services in Scottsbluff, NE

Monument Diesel specializes in heavy-duty truck repair and truck part sales. Our highly experienced mechanics and customer support team are ready to assist with all of your needs. We provide our services in Scottsbluff, Nebraska to customers all over the USA.

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About Monument Diesel

Monument Diesel was started out of necessity to keep our own trucks on the road. We know the trucking industry and have what it takes to keep your trucks moving. We are a full service commercial diesel repair shop with a growing supply of Peterbilt parts. Our staff of trained technicians is capable of almost any type of truck or trailer repair.

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Cummins ISX 15 heavy duty diesel engine

Located Off Hwy 71 & 92 in Scottsbluff

Monument Diesel is a fully-equipped and staffed diesel engine repair facility located off HWY 71 & 92 in Scottsbluff, Nebraska. Our services include heavy duty diesel engine repair, rebuilds of all makes & models, complete driveline and transmission services, electronic engine controls diagnosis, and more.

We specialize in heavy duty diesel trucks with manufacturers such as CAT, Cummins, Detroit Diesel, Mercedes, Kenworth, Peterbilt, and more.

Heavy Duty Diesel Repair Services

Select a service from the list below to see options and schedule your service.

DOT Inspections

The safety and reliability of your vehicle is our top priority. Our technicians will keep you compliant with Nebraska's DOT, driving safely, and get you back to work quickly.

Service Options

Day Cab Conversion

Do you have a truck with a sleeper that has been damaged or you never use? Or maybe you just want to renew your trucks look. Learn more about our service options for day cab conversions.

Service Options


Getting to the root of a problems requires systematic processes. Whether a complex electric issue or a simple fuse, we track our diagnostics processes and continually improve.

Service Options


From general driveline service to catastrophic failure repairs, our heavy duty diesel mechanics are driveline experts.

Service Options

Electrical & Electronic Specialties

Electrical problems in a heavy truck can interrupt your work and lead to irreparable damage to your vehicle. Our electrical servicing process gets to the bottom of complex electrical issues and gets you back on the road safely and quickly.

Service Options

Engine Conversions

Put your engine conversion worries at ease. If you're looking torepurpose your rig from Cummins to CAT, Detroit to Cummins, or another diesel-to-diesel setup, you're in good hands.

Service Options

Engine Repair, Overhaul & Rebuild

If your truck is out of commission, that probably means you're not working. We understand that downtime is crucial. Monument Diesel knows and understands the importance of getting repairs done quickly, correctly and affordably.

Service Options

Exhaust Systems

Exhaust issues can lead to decrease in power, acceleration, and fuel economy. They'll often sound bad but their outcomes can be even worse. Be sure to have your exhaust serviced regularly to avoid potential problems.

Service Options

HVAC Systems

Whether it’s the middle of summer or freezing cold, your comfort in the cabin is the key to working your best. Our technicians make sure your heating, cooling, and ventilation are in top shape so that you can stay on the road whatever the weather.

Service Options


No job is too big or too small for our experienced team. We can take care of everything from a simple body repairs to more complex problems such as issues with the brakes, fuel injection system, clutch, or transmission.

Service Options


Regular wear and tear on your suspension makes it hard to get where you need to go and puts the integrity of your vehicle at risk. We get you aligned and back on the road with little downtime.

Service Options


Are you looking for a heavy-duty repair shop that offers towing and recovery services? Well, if so, you’ve found us! Here at Monument Diesel, we offer towing services for vehicles of all kinds. Whether you need a passenger car or a large 18-wheeler towed, we’ve got you covered.

Service Options

Transmissions & Clutch

While clutch designs vary depending on light, medium, or heavy-duty applications, they all break down and get worn eventually. Getting them serviced regularly keeps you safe and secure on the road.

Service Options

Talk To A Tech Today →

+1 308-633-4950
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We pride ourselves in getting back to our customers right away.

Currently, our average response time is 3 hours. If we’re busy, it might be closer to 24 hours.

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Customer Reviews & Stories

Johnny C.
5 Star Review
2 months ago

These guys got my truck up and running in no time. I wasn’t able to diagnose the issue, but these guys were. Excellent professional service you can count on. Very thankful for the streamlined service Andy was able to provide me. Got me back on the road in no time.

Michael S.
5 Star Review
2 months ago

Andy and the guys are great very professional can't wait to see them keep expanding!!... Definitely a return customer.

Jared P.
5 Star Review
2 months ago

Excellect trailer and truck mechanics there that are very knowleageable! There were able to get me in within a day and got me up and running the next day! Definetly a five star diesel shop!

Scott F.
5 Star Review
2 months ago

Great shop that works with your schedule and keeps your down time to a minimum.

Jordan D.
5 Star Review
8 months ago

Best heavy duty diesel shop in the region. Small town service matched with high tech solutions.

Spencer B.
5 Star Review
9 months ago

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Heavy Duty Mechanic

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March 8, 2021
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Scottsbluff, NE
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August 31, 2023

Engine Conversions: Upgrading Your Truck's Performance & Efficiency

Boost your truck's performance and efficiency with an engine conversion. Upgrade to a newer, more powerful, and fuel-efficient engine for optimal results. Discover the benefits and key considerations in this article.

June 28, 2023

Everything You Need to Know About Overhaul & Rebuild Services for Your Truck

Overhauls replace worn parts, while rebuilds involve complete replacement. They address different issues: overhauls for mileage/maintenance, rebuilds for severe damage/end-of-life.

June 16, 2023

The Importance of Regular DOT Inspections for Commercial Trucks

Ensure the safety and compliance of your commercial truck with regular DOT inspections. Don't risk fines or road restrictions—stay roadworthy and avoid penalties by prioritizing inspections.