Mobile Diesel & Heavy Equipment Repair in Branchburg, NJ

Looking for a mobile diesel mechanic near Branchburg? KS Diesel comes to your job site fast with expert truck, trailer, and equipment repair.

We serve all of Branchburg with 24/7 emergency response and same-day service. No towing. No shop delays. Just fast, on-site repair that gets you moving.

About Us

WHY CHOOSE KS DIESEL IN Branchburg, NJ?

We deliver expert mobile diesel repair, fully on-site, for Branchburg’s contractors, fleets, and municipal operators. No towing, no delays, just fast, certified repairs where you need them.

100% ON-SITE REPAIRS

Repairs done at your job site, roadside, or fleet yard. No towing or shop delays.

24/7 EMERGENCY SERVICE

Breakdowns don’t wait. We’re ready anytime with same-day and overnight service in Branchburg.

1-YEAR WORKMANSHIP WARRANTY

Every repair comes backed by our one-year workmanship guarantee.

FULLY EQUIPPED SERVICE TRUCKS

Every truck carries diagnostics, tools, welding gear, hoses, and parts to complete the job.

ASE-CERTIFIED TECHNICIANS

Skilled, experienced, ASE-certified diesel mechanics handle every repair, guaranteed.

Our Services

Our Mobile Diesel & Equipment Repair Services in Branchburg, NJ

We offer full-service mobile repair for diesel-powered vehicles and equipment across all job sectors in Branchburg.

Heavy Equipment Repair

Excavators. Skid steers. Backhoes. Loaders. If your machine breaks down on a construction site near Milltown Road or Old Route 28, we come to you. We fix engine issues, hydraulics, electrical faults, overheating, and more, right on-site.

Mobile Truck Repair

From box trucks to semi trucks, we perform full mobile truck repairs across Branchburg. Whether your engine fails on Route 202 or your air brakes go out in your lot, we arrive fast and fix it on-site. No need to tow your truck.

Roadside Assistance

Stuck on Route 22 or near the Raritan River? We offer 24/7 roadside repair for diesel trucks, trailers, and reefers. We handle lockouts, jump starts, fuel delivery, electrical issues, and more.

Line Boring

We offer precision line boring for heavy equipment right at your job site. If you operate in Branchburg’s construction zones or industrial yards, we bring the equipment to restore pin and bore tolerances on your machines.

Welding & Fabrication

Broken bucket? Cracked frame? Worn-out bracket? Our mobile welding and fabrication service comes to you with full MIG, TIG, and stick capabilities. We weld on excavators, loaders, trailers, and more, on location in Branchburg.

Hydraulic Hose Repair

We repair and replace hydraulic hoses on the spot. If your excavator or skid steer is leaking near Whiton Road, we’ll crimp and install new hoses on-site, getting your equipment running again fast.

Diagnostics & Electrical Repair

Check engine light? Power loss? We provide full diesel diagnostics with dealer-level scan tools for trucks, trailers, and heavy equipment in Branchburg. We’ll pinpoint the issue and fix it fast.

PM Service (Preventative Maintenance)

Avoid downtime with scheduled PM service for trucks, trailers, and equipment. We perform on-site oil changes, filter replacements, inspections, and adjustments for Branchburg-based fleets and contractors.

Fleet Maintenance

We help local companies keep their fleets running. Our fleet maintenance service is trusted by contractors, rental companies, and trucking operations across Branchburg. We track service, show up on time, and keep your vehicles moving.

Breakdowns happen anytime, and we respond anytime

24/7 Emergency Diesel Repair in Branchburg, NJ

Breakdowns don’t wait. Whether your semi truck overheats on Route 28, or your excavator dies at a job site off Pleasant Run Road, we show up fast and fix it where it sits.

Common emergency issues we fix in Branchburg:

Diesel truck won't start
Hydraulic hose failures on-site
Brake chamber blowouts
Electrical faults and shutdowns
Reefer units not cooling
Fuel system problems
Air leaks and AC issues

We respond day or night. No towing needed. Just one call and we’re on the way.

What Our Customers Say

TESTIMONIAL

      EXCELLENT  
   Based on 30 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Howard Mcnabb 
 
 
 
 Trustindex verifies that the original source of the review is Google. I was stuck on 202  from last night and Kevin came and got me up and running this morning. And his prices  are reasonable .I would definitely go with him again
  
 
      Posted on Google  
   
   Nicholas Dessauer 
 
 
 
 Trustindex verifies that the original source of the review is Google. Kevin is a absolute amazing Mechanic!!!! We were coming back to Long Island fromKY and the Fan pulley went out on our 3500 diesel truck and he was able to get the parts and fix the truck and have us back on the road in very quick way. Excellent service and communication. Price was very reasonable and for a same day call and fix he did an Outstanding Job!!! Thank you again Kevin we appreciate you so much!!!!
  
 
      Posted on Google  
   
   Karam Bains 
 
 
 
 Trustindex verifies that the original source of the review is Google. I am from canada and got problem on my Columbia with Cat c15, twin turbo And looked for mobile service and got in touch with KS diesel in NJ he is the best guy I have ever met for mobile service , very much knowledgable and cool headed , not greedy Would recommend this guy to everyone, if you got any problem in Somerset NJ area call this guy 10/10 for price 10/10 problem solver
  
 
      Posted on Google  
   
   Eric Karstensen 
 
 
 
 Trustindex verifies that the original source of the review is Google. Kevin is the best. Fast excellent work. Great on the road mechanic. Best prices around! Nice guy. Would recommend for all truck repairs. A++
  
 
      Posted on Google  
   
   Danny Guerrieri 
 
 
 
 Trustindex verifies that the original source of the review is Google. Awsome
  
 
      Posted on Google  
   
   ibrahim elhabbal 
 
 
 
 Trustindex verifies that the original source of the review is Google. Trust worthy, honest, genuine and very hard working. What else do you need from your mechanic. Always answers right away and gives you best recommendations!!!!!!