Available 24 hours a day · 7 days a week · 365 days a year
Emergency roadside dispatch active now
Stranded on I-80? We bring the shop to you.
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.
Hover to see what's covered ↻- Air line failures
- Frozen fuel lines
- Trailer brake chambers
- Starter replacement
Mobile Computer Diagnostics
Skip the shop queue with dealership-level diagnostics on wheels.
Hover to see what's covered ↻- Check engine light readouts
- Fault code clearing
- Electrical fault tracing
- Forced DPF regens
RV & Motorhome Roadside
Don't let a breakdown ruin the family trip.
Hover to see what's covered ↻- Diesel pusher repairs
- Slideouts & leveling jacks
- Fuel pump service
- Bearing / axle replacement
Fleet Preventive Maintenance
Scheduled servicing at your yard during down-hours.
Hover to see what's covered ↻- Minor adjustments & checkups
- Reduces on-road failures
- Flexible scheduling
- Multi-truck accounts
How It Works
From breakdown to back-on-the-road
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
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
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.
- High-failure truck & RV components stocked on every truck
- Dealership-level computer diagnostics on-site
- No tow required for most common repairs
Mobile Service Area
Are we close enough to reach you?
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
Trustindex 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![]()
Dustin LundeTrustindex verifies that the original source of the review is Google.
Thank you . Solved so fastPosted on Google![]()
Esengeldi OmuralievTrustindex 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![]()
maroune dridiTrustindex 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![]()
Sarah McAvoyTrustindex verifies that the original source of the review is Google.
They are Great people and they helped me right away with my truckPosted on Google![]()
Fernando GarciaTrustindex 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![]()
The dangerous one ZTrustindex 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![]()
Mike IrvingTrustindex 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![]()
Jeremy YbarraTrustindex 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![]()
Kalpesh ShahTrustindex 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![]()
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.
How much does mobile diesel roadside repair cost?
Do you work on RVs and motorhomes, not just semi-trucks?
Will I need a tow, or can it be fixed on-site?
Do you offer fleet preventive maintenance, not just emergencies?
Get In Touch
Stranded now? Call. Scheduling ahead? Send us details.
Request a callback or quote
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

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.
Quick Links
- Services
- About
- Service Area
- Testimonials
- Contact
Services
- Mobile Semi-Truck Repair
- Mobile Trailer Repair
- RV & Motorhome Repair
- Computer Diagnostics
- Fleet Preventive Maintenance
Contact Info
- 205 RD M47, Walnut, IA 51577
- 712-827-0207
- 712-308-1413
- MudhollowMechanics@yahoo.com
- Serving I-80 (Omaha, NE → West Des Moines, IA) & I-29 (Mound City, MO → Sioux City, IA)