DIESEL SPECIALISTS, LTD
Serving the Houston area since 1983.
At DSL Humble, we specialize in professional JCB engine repair, JCB diesel service, maintenance, diagnostics and engine overhaul solutions throughout Houston and the surrounding Texas areas. Our experienced technicians perform engine repairs using industry-best practices to restore peak performance, improve reliability, and keep your equipment operating at its best.
Whether you require preventive maintenance, engine diagnostics, emergency repairs, or a complete overhaul, our team provides dependable JCB engine service for generators, construction equipment, agricultural machinery, marine vessels, oil and gas operations, fleet vehicles and industrial equipment
Call (281) 446-1230 for a Diagnostic Appointment
Need High Quality Diesel Parts?
If you're looking for on-site diesel repair in the Greater Houston area, chances are we're already working in your area.
We serve Greater Houston from our Humble, TX facility, including (but not limited to): Houston, Humble/Kingwood, Pasadena/La Porte, Deer Park, Baytown, Conroe/The Woodlands, Sugar Land, Galveston, and Beaumont.
We're centrally positioned to reach industrial, commercial, and job sites across the region, often the same day, delivering fast on-site diesel repair in Houston and nearby areas without the cost of hauling equipment to a distant shop.
Our experienced technicians deliver a full range of JCB engine repair and maintenance services to support optimal equipment performance.
Advanced JCB Engine Diagnostics & Testing
Fuel System Repairs & Injector Service
Cooling System Service & Repairs
Turbocharger Inspection, Repair & Replacement
Complete Engine Overhauls & Rebuilds
Genuine JCB Parts Installation & Support
Our experienced JCB engine repair specialists service a wide range of JCB-powered equipment used across various industries and applications, including:
Construction Equipment — Excavators, backhoe loaders, wheel loaders, telehandlers, and compactors
Generators — Standby and prime power generator sets
Materials Handling Equipment — Telehandlers, forklifts, and loadalls
Agricultural Machinery — Tractors and farm equipment powered by JCB engines
Industrial Equipment — Compressors, pumps, and other JCB-powered industrial machinery
Fleet & Commercial Equipment — Fleet-operated JCB machines across construction and industrial sites
Our technicians regularly diagnose and resolve the following issues:
Hard Starting or Difficult Cranking- Problems with fuel delivery, injector operation, battery condition, or electrical systems can make engines difficult to start.
Excessive Exhaust Smoke-Black, blue, or white exhaust smoke often indicates fuel system issues, turbocharger failures, or internal engine problems.
Engine Overheating- Cooling system failures, restricted airflow, low coolant levels, or thermostat issues can cause dangerous operating temperatures.
Power Loss & Poor Performance- Reduced power may result from fuel system restrictions, turbocharger failures, air intake blockages, or internal engine wear.
Fuel Consumption Issues- Unexpected increases in fuel usage often indicate injector problems, poor combustion, or engine inefficiencies.
Experienced Perkins Technicians – Our team includes JCB engine specialists with extensive experience across JCB engine families and variants, including technicians with more than 40 years of industry experience.
Fast Scheduling & Responsive Service – Minimize equipment downtime with quick service scheduling
Genuine Replacement Parts – We source genuine JCB OEM parts and high-quality components to deliver reliable repair and maintenance solutions.
Complete Support Under One Roof – Diagnostics, maintenance, repairs, overhauls, and parts
Field & On-Site Service – Emergency remote repair capability for applicable situations
Emergency Service Response – Our team is available to assist with urgent repair needs and after-hours service requests to help keep critical equipment running.
Customer Reviews
Frequently Asked Questions (FAQs)
Yes. We offer emergency repair services for JCB-powered equipment. With a fleet of fully equipped service trucks and experienced field technicians, we can provide fast on-site support to help get your equipment back in operation as quickly as possible.
Yes. We provide routine JCB engine maintenance programs designed to improve reliability, reduce downtime, extend equipment life, and prevent unexpected failures.
Yes. We can source and install genuine JCB replacement parts and related components as needed during service, with no delays to your repair timeline.
We serve the Greater Houston area from our Humble, TX base, including Houston, Kingwood, Pasadena, La Porte, Deer Park, Baytown, Conroe, The Woodlands, Sugar Land, Galveston, Beaumont, and surrounding communities. If your site isn't listed, give us a call, we likely cover your area.
Professional Associations


Diesel Specialists Ltd is a proud member of the
Chamber of Commerce. See our listing.




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DIESEL SPECIALISTS, LTD
Phone: 281-446-1230
Fax: 281-446-1890
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