- On-Site Truck, Trailer & Heavy Equipment Services
24/7 Mobile Diesel Mechanic in Central New Jersey
We provide fast, reliable mobile repair for diesel trucks, trailers, heavy equipment, hydraulics, welding, engine issues and emergency breakdowns across Central New Jersey. Available 24/7 for commercial, fleet and job-site repairs.
🗺️ Based in Bound Brook, NJ, serving Somerset, Middlesex, Hunterdon, Morris, Mercer, and Monmouth Counties
Why Choose KS Diesel On-Site Repair?
We take on jobs that many shops avoid. We fix major breakdowns, heavy equipment failures, welding issues, hydraulic leaks, engine problems, and structural repairs in the field.
Fully Equipped Mobile Service Trucks
Our trucks carry all tools, diagnostics, welding gear and parts to repair your machine without towing.
24/7 Emergency & Same-Day Repair
We respond fast to roadside breakdowns, job-site failures and urgent diesel repair needs.
Commercial & Fleet Friendly
We serve construction companies, fleets, contractors, rental yards and municipal clients with priority service.
1-Year Warranty on All Repairs
Every job, big or small, is backed by our full 1-year workmanship warranty.
Our Services
Our On-Site Repair Services
We provide complete mobile repair for diesel trucks, trailers, heavy equipment, hydraulics, welding, and commercial fleets across New Jersey.
Heavy Equipment Repair
On-site repair for excavators, skid steers, loaders, backhoes, forklifts, and all construction equipment. We handle engine issues, electrical problems, hydraulic leaks, cooling system failures, pin & bushing wear, structural cracks, and more.
Mobile Truck Repair
We repair semi trucks, trailers, reefers, dump trucks, box trucks, and commercial vehicles on the spot. Services include diesel engine repair, brakes, air leaks, AC repair, suspension, hydraulics, electrical issues, PM service, and diagnostics.
24/7 Roadside Assistance
Fast, same-day help for breakdowns, no-starts, lockouts, jump starts, out-of-fuel calls, reefer emergencies, electrical failures, and air leak issues anywhere in Central NJ.
Portable Line Boring
Precision on-site bore welding, pin & bushing repair, pivot point rebuilds, and field machining for heavy equipment that cannot be moved.
Welding & Fabrication
Mobile steel and aluminum welding, bucket and boom repairs, trailer frame repair, and structural fixes done directly at your job site or yard.
On-Site Hydraulic Hoses
We replace hydraulic hoses, fittings, lines, cylinders, pumps, and seals, fix leaks, and restore pressure systems right where your equipment sits.
Diagnostics & Electrical Repair
Advanced on-site diagnostics for engine codes, wiring issues, sensor faults, charging systems, trailer lights, and electrical shutdowns.
PM Service (Oil, Lube, Filters)
Preventive maintenance for trucks, trailers, heavy equipment, and commercial fleets, done on-site to reduce downtime.
Fleet Maintenance Service
Fleet contracts available with priority service, same-day repairs, scheduled PM, and on-site inspections to keep your trucks and equipment running without delays.
24/7 Emergency Diesel & Equipment Repair
Breakdowns happen anytime — and we respond anytime.
KS Diesel offers 24/7 emergency mobile repair for trucks, trailers, reefers, and heavy equipment across Central New Jersey. We arrive fast, fix the problem on-site, and get your machine back to work without towing or delays.
We Handle All Emergency Situations
- Truck won’t start
- Equipment down on job site
- Engine shutdowns
- Air leak issues
- Brake chamber failures
- Hydraulic hose bursts
- Reefer not cooling
- Electrical failures
- Overheating problems
- Fuel delivery issues
- Lockouts & jump starts
If your machine is stuck, broken, or unsafe to move — we come to you.
TESTIMONIAL
Our Service Areas
KS Diesel On-Site Repair is based in Bound Brook, NJ, and we provide fast mobile repair across a wide area of Central New Jersey. Our service trucks cover multiple counties and reach job sites, fleet yards, highways, warehouses, farms, and construction sites every day.
We proudly serve:
- Somerset County
- Middlesex County
- Hunterdon County
- Morris County
- Mercer County
- Monmouth County
If your truck or equipment is down anywhere in Central New Jersey, we come to you.
Request a Free Estimate
Need repair for your truck, trailer, or heavy equipment? Tell us what’s going on and we’ll get back to you quickly with the right solution. We handle everything on-site, so there’s no towing or shop delays.