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Stranded on I-80? We bring the shop to you.

A fully equipped mobile diesel shop — not a tow truck.

When your semi-truck, commercial fleet, or RV breaks down, you can’t afford to wait hours for an expensive tow. Mudhollow meets you on the shoulder, at the rest stop, or at the loading dock — with the diagnostics, parts, and tools to get you back on the road, often in under an hour.

BBB A+ Rated

Accredited business

4.9 / 5.0

50+ verified Google reviews

24/7/365

Real dispatch, day or night

Comdata · EFS · FleetOne

Commercial fleet payments accepted

Roadside Capability

Mobile diesel services built around downtime

Experienced diesel repair, advanced diagnostics, stocked parts, and heavy-duty tools — brought directly to disabled trucks, fleets, and RVs across western Iowa. Hover a card to see what’s covered.

Semi-Truck & Trailer Repair

Complete roadside service for heavy-duty trucks and trailers.

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  • Air line failures
  • Frozen fuel lines
  • Trailer brake chambers
  • Starter replacement
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Mobile Computer Diagnostics

Skip the shop queue with dealership-level diagnostics on wheels.

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  • Check engine light readouts
  • Fault code clearing
  • Electrical fault tracing
  • Forced DPF regens
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RV & Motorhome Roadside

Don't let a breakdown ruin the family trip.

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  • Diesel pusher repairs
  • Slideouts & leveling jacks
  • Fuel pump service
  • Bearing / axle replacement
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Fleet Preventive Maintenance

Scheduled servicing at your yard during down-hours.

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  • Minor adjustments & checkups
  • Reduces on-road failures
  • Flexible scheduling
  • Multi-truck accounts
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How It Works

From breakdown to back-on-the-road

Three straightforward steps — no dispatch broker, no guessing who’s coming.

1

Call or text your location

Tell us your mile marker, exit, or address and describe what’s happening. No call center — you reach the shop directly.

 

2

We diagnose & dispatch

We talk through the issue upfront and send a stocked service truck with the parts and tools most likely to be needed.

3

On-site repair, same visit

Most roadside fixes are completed on the shoulder or lot — no tow, no separate parts run, no dealership wait.

 

Why Choose Mudhollow

Fast help, honest answers, real roadside capability

Every dispatch is built around reducing downtime, communicating clearly, and completing the repair safely at your location whenever possible.

Speed & Efficiency

Most roadside fixes — radiator, turbo, brake line swaps, starter replacements — are resolved faster than most in-shop repair times.

Transparent Pricing

Minimum charges are communicated upfront via text — whether it's a simple fix or complex diagnostics, before we start.

Unmatched Dedication

Lead technician Zeb is known for pulling over to assist stranded drivers out of sheer dedication to keeping America moving.

Massive Coverage Area

Based in Walnut, Iowa — actively patrolling I-80 & I-29 from Council Bluffs and West Des Moines to Sioux City and Hamburg.

Parts On Board

A stocked mobile shop, not just a service call

Our service trucks carry an extensive roadside parts inventory, dealership-level diagnostic equipment, and the heavy-duty tools required for complex on-site repairs — so you’re not left waiting on a tow or a parts order.

Mobile Service Area

Are we close enough to reach you?

Based in Walnut, Iowa, patrolling the I-80 and I-29 corridors around the clock.

Major Hubs

Council Bluffs, IA · Omaha, NE · West Des Moines, IA

I-80 & I-29 Corridor Cities

Walnut · Avoca · Adair · Anita · Shelby · Underwood

Missouri River Border Towns

Missouri Valley · Mondamin · Little Sioux · Hamburg · Pacific Junction · Mound City, MO · Red Oak, IA

See the full list of Iowa communities we serve

Neola
Underwood
Walnut
Atlantic
Avoca
Shelby
Council Bluffs
Anita
Casey
Panora
Guthrie Center
Carroll
Ida Grove
Oakland
Carson
Treynor
Malvern
Tabor
Essex
Corning
Mt. Ayr
Sac City
Adel
Dexter
Stuart
Adair
Greenfield
Red Oak
Shenandoah
Clarinda
Creston
Bedford
Denison
Harlan
Onawa
Missouri Valley
Mapleton
Dunlap
Carter Lake
Glenwood
Sidney
Hamburg

A Real Local Mechanic

Meet us — the shop that comes to you

“Mudhollow is a local mobile repair business, not a national brokered dispatch agency. When you call, you reach a team known throughout the region for real mechanical expertise, straightforward communication, and the willingness to help drivers in difficult roadside situations.”

Zeb — Lead Technician

Mudhollow Diesel Mechanics, Walnut IA

50+ Five-Star Google Reviews

What drivers say after we show up

A sample of verified Google reviews from truckers, fleets, and RV owners we’ve helped roadside.
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Mudhollow was the only shop around even willing to try and get me going on a Sunday morning. Called several Mudhollow showed up fast and got me going. Honestly cant recommended them enough if you are in a bind. 10/10 fast and fair priced!
Posted on Google Google
Dustin Lunde profile picture
Dustin Lunde
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Thank you . Solved so fast
Posted on Google Google
Esengeldi Omuraliev profile picture
Esengeldi Omuraliev
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I would like to share my experience with these guys, and God is my witness. My rig broke down and left me stranded on the side of the road because of an electrical issue. I was stuck for more than 24 hours in Iowa. Southern Tire Mart at the Pilot on I-80 was trying to tow my truck to the dealership, but they refused to even try to diagnose or fix the problem. Then I contacted 360 Diesel Repair, and unfortunately, I experienced basically the same thing, just with different people. They charged me for a job they didn’t even complete, and they never fixed my truck. They even refused to charge my batteries. I spent the whole night on the side of the road with no lights, no power, and no way to do anything. It was a complete nightmare. But in the end, I found these gentlemen, and at that moment, they honestly felt like angels sent to help me. They might be a little more expensive, but they are absolutely worth it. These people are professional, knowledgeable, and they really know what they’re doing. They don’t waste your time for no reason, and they will do everything they can to make sure you get back on the road, no matter what the situation is. Most importantly, they truly understand what it means to be a trucker broken down in the middle of nowhere. They understand the stress and the pressure we go through when our livelihood is sitting on the side of the road. I truly appreciate everything they did for me. Highly recommended! If you’re a trucker and you ever find yourself stranded, these are the people you want to call.
Posted on Google Google
maroune dridi profile picture
maroune dridi
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Zep came to the rescue very quickly and made sure we were taken care of! The kindest person who you can tell really cares about his job and the people he works with, and truly knows what he’s talking about! Took the time to explain everything clearly and took great care of us. Thank you so, so much!!
Posted on Google Google
Sarah McAvoy profile picture
Sarah McAvoy
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
They are Great people and they helped me right away with my truck
Posted on Google Google
Fernando Garcia profile picture
Fernando Garcia
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
These guys are the best. Had the tools and knowledge to immediately get my family back on the road! Thanks again!
Posted on Google Google
The dangerous one Z profile picture
The dangerous one Z
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Was driving through Iowa when my van broke down in Walnut. It was getting late on a Saturday night and when I googled car repair, Mudhollow was the only place still open at 7:30pm. I called and they showed up to help me even though they don’t typically work on regular vehicles. The gentleman was knowledgeable and professional and got me back on the road. No charge!! It was just the kindest thing anyone could do to help someone who had a few kids in the car and needed help. Thanks so much, Mudhollow!
Posted on Google Google
Mike Irving profile picture
Mike Irving
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Called to get assistance with a truck and was welcomed by the owner who was more than helpful and told me how to fix it rather than charge me to come out for something so simple. 10/10 will be my first call if I ever need help!
Posted on Google Google
Jeremy Ybarra profile picture
Jeremy Ybarra
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Very quick , efficient and reliable service. One of hose connector came off from trailer brake chamber. I was not able to drive the truck and trailer and got stuck on i80. I called them and mechanic arrived within 30 minutes, fix it in 15 minutes. I was back on the road within one hour. I would prefer calling this facility than calling loves or TA roadside service.
Posted on Google Google
Kalpesh Shah profile picture
Kalpesh Shah
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I called a mechanic to perform force regen, but when he arrived, he couldn't do it. He didn't charge me anything and even suggested I find a shop nearby. He's very knowledgeable and provides excellent service. I highly recommend calling this technician if you have any problems.
Posted on Google Google
bookey man profile picture
bookey man

Common Questions

Before you call — quick answers

How fast can a mobile diesel mechanic reach me on I-80?

Response times depend on your location along the corridor, but drivers commonly report our trucks arriving within 15–45 minutes across the I-80 and I-29 service area.

We communicate a minimum charge upfront by text before dispatch, and give clear estimates for parts and labor before starting complex diagnostic or aftertreatment work — no surprise bills.
Yes — we handle diesel pusher engine issues, slideouts, leveling jacks, fuel pumps, and roadside bearing or axle replacements for RVs and motorhomes, in addition to commercial trucks and trailers.
Most common failures — air line issues, starters, brake chambers, electrical faults, and more — are repaired directly on the shoulder or at your location using our on-board parts inventory, avoiding a tow entirely.
Yes — we perform scheduled preventive maintenance at your yard or terminal during your trucks’ down-hours to help prevent costly on-road failures before they happen.

Get In Touch

Stranded now? Call. Scheduling ahead? Send us details.

For active roadside emergencies, calling or texting is always fastest. Use the form below for fleet maintenance scheduling or non-urgent quote requests.

Request a callback or quote

We’ll respond by phone or text, usually within the hour during business coverage.

Reach us directly

712-827-0207 (main) · 712-308-1413 (secondary)

Call or text, 24/7/365

205 RD M47, Walnut, IA 51577

Home base, mobile trucks dispatch region-wide

MudhollowMechanics@yahoo.com

Non-urgent inquiries

24 hours · 7 days · 365 days a year

Emergency dispatch never closes

Accepting commercial fleet payments:

Stranded? We'll come to you.

Rapid roadside diesel repair on I-80, I-29, and surrounding western Iowa routes — day or night.

For over 25 years, Mudhollow has delivered honest mobile diesel repair with stocked service trucks across I-80 and I-29 — no towing or separate parts run needed for many roadside repairs.

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© 2026 Mudhollow Diesel Mechanics. Family Owned & Operated · Western Iowa.
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