Houston, TX · Heavy-Duty Diesel Truck Repair

Heavy-Duty Diesel, Done Right.

"Cualquier trabajo en tu camión, nosotros te lo hacemos."

Engine rebuilds, repairs, roadside & towing — Houston's trusted diesel shop for owner-operators and fleets. Honest work, fast turnaround, and a wrench that's on the road by 7 AM.

0★ on Google
7 AMOpen Mon–Sat
Mobile+ Roadside
EspañolSe habla
Our work

Torn down, built back better.

Real diesel work off our shop floor — rebuilds, valve trains, cylinder heads and the internals that keep Houston's trucks rolling.

Freshly rebuilt diesel long block on a pallet in the shop yard
Fresh Long BlockRebuilt & ready to drop in
Rebuilt diesel engine block, wide view
Bottom End, Built RightBearings, rings & torque to spec
Close-up of the deck and head surface of a rebuilt diesel block
Deck & Head DetailSealed clean, no shortcuts
Cylinder head rocker arms and valve springs during a rebuild
Valve Train WorkRockers & springs set tight
What we do

Any job on your truck.

From a full engine overhaul to a roadside no-start at 2 AM — if it's got a diesel in it, we fix it. Owner-operators and fleets across Houston.

01

Engine Rebuilds & Overhauls

In-frame and out-of-frame rebuilds done to spec — bearings, rings, injectors, heads and turbos. We tear it down, measure everything, and build it back to run for the long haul.

02

General Truck Repair

Brakes, clutches, drivetrain, cooling, air systems and everything in between. One shop for the whole truck — no runaround, no upselling parts you don't need.

03

Roadside & Mobile Service

Broke down on the shoulder or stuck at the yard? We come to you. Mobile diesel repair across Houston so a bad day doesn't turn into a lost week.

04

Heavy-Duty Towing

Semis, box trucks and heavy equipment — recovered and hauled to the shop or wherever you need. When the truck can't roll, we get it there safely.

05

Diagnostics & Electrical

Check-engine light, sensor faults, no-starts and wiring gremlins. We plug in, read the codes and actually find the cause — not just clear the light and hope.

06

Preventive Maintenance / DOT

Scheduled PM service, oil and filters, and DOT inspection prep to keep you legal and on the road. Catch the small stuff before it strands you.

The shop

The man behind the wrench.

General Diesel Mechanic is Carl — a hands-on master diesel mechanic who'd rather be under the hood than behind a desk. No service writers, no runaround. You talk to the guy actually turning the wrenches on your truck.

01

Master diesel expertise

Years deep on heavy-duty engines — rebuilds, diagnostics and the hard jobs other shops pass on.

02

Honest work, straight answers

You get told what the truck actually needs — and what it doesn't. That's how owner-operators keep coming back.

03

On the road by 7 AM

Early starts, fast turnaround. Downtime costs you money, so we don't waste it.

Carl, owner and master diesel mechanic at General Diesel Mechanic
Mechanic working on a heavy-duty diesel engine
Owner & Master Mechanic Carl General Diesel Mechanic · Houston

"If it's got a diesel in it, we'll make it right. Cualquier trabajo en tu camión, nosotros te lo hacemos."

General Diesel Mechanic — cualquier trabajo en tu camión, nosotros te lo hacemos
Owner-operators & fleets · Houston
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Who we serve

Built for the working truck.

One rig or a whole yard — we keep Houston's diesel fleet earning. If it hauls, we handle it.

Owner-Operators

Your truck is your business — we treat it that way

Fleets

Keep every unit legal, serviced and rolling

Semis / 18-Wheelers

Long-haul power, kept in tune

Box Trucks

Delivery rigs back on the route fast

Dump Trucks

Heavy loads, heavier maintenance — handled

Heavy Equipment

Off-road diesel & machinery, too

Why us

The shop owner-ops trust.

We're not a chain and we're not guessing. It's diesel done by someone who's rebuilt hundreds of engines and stands behind every job.

Heavy-duty diesel specialists

Rebuilds and overhauls are our bread and butter — not a side job.

Mobile, roadside & towing

Shop, shoulder or yard — we come to the truck and we can haul it too.

Honest work, fast turnaround

Straight pricing, real diagnosis, and we don't sit on your truck.

Se habla español

Bilingual service for Houston's trucking community — sin problema.

Broke down right now?

Roadside & towing, on the way.

No-start on the shoulder or a truck that won't move? Call and we'll get a mechanic or a tow rolling toward you — across Houston, early and honest.

Call 281-989-1597
Free quote · No obligation

Let's get you rolling.

Tell us about the truck and the problem — engine, roadside, a tow or a full rebuild. We'll get back with a straight answer and a plan.

Hablamos español
281-989-1597 16550 Beaumont Hwy
Houston, TX  77049
Shop Hours

Monday – Saturday · Opens 7:00 AM
Sunday · Closed

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Engine, repair, roadside, a tow or a rebuild — tell us what's going on.

No obligation · We'll reply by phone or email · Hablamos español.

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