If It's Diesel, We Do It.

DIESEL SPECIALISTS, LTD

Serving the Houston area since 1983.

Contact

(281) 446-1230

If It's Diesel, We Do It.

Call (281)-446-1230

Detroit Diesel Engine Repair & Service in Humble, Houston, TX

At Diesel Specialists Ltd, we provide expert Detroit Diesel service, maintenance, diagnostics and overhaul solutions across Houston areas. Our technicians restore performance, improve reliability, and minimize downtime for your equipment.

Call (281) 446-1230 to Book Detroit Diesel Service

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Diesel Engine Sales, Parts & Service

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Parts vs. Service Coverage

Parts: Identification, quotation, sourcing, and shipment available nationwide, and internationally where applicable, subject to availability and freight.

Service & Repair: Harris county, Brozoria county, Pasadena, Channelview, Beaumont, Deer Park, Houston, Pearland, Sugar Land, Richmond, Katy, and surrounding areas.

Detroit Engine Service for Greater Houston

Diesel Specialists Ltd provides expert, on-site Detroit Engine Service across Greater Houston. From our Humble, TX headquarters, we proudly serve Houston, Kingwood, Pasadena, Baytown, Galveston, Beaumont, and all surrounding service areas.

When equipment can’t come to us, our mobile team delivers same-day diagnostics and repairs directly to your job site. Servicing machinery where it operates minimizes downtime, lowers transportation costs, and gets you back to work faster.

Trust our local technicians for reliable preventive care, complete component overhauls, and heavy-duty mechanical solutions that keep your fleet fully operational.

Our Detroit Diesel Service & Repair Capabilities

Our experienced technicians deliver a full range of Detroit Diesel engine repair, diagnostics, and routine detroit diesel maintenance to support optimal equipment performance.

Advanced Detroit Engine Diagnostics & Testing
Fuel System Repairs & Injector Service
Cooling System Service & Repairs
Turbocharger Inspection, Repair & Replacement
Complete Engine Overhauls & Rebuilds
Genuine Detroit Parts Installation & Support

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Detroit Diesel Equipment & Applications We Service

Our experienced Detroit Diesel engine repair specialists service a wide range of Detroit Diesel-powered equipment used across various industries and applications, including:

Construction Equipment – Skid steers, mini excavators, wheel loaders, telehandlers
Industrial Equipment – Generators, compressors, pumps and industrial power systems
Agricultural Equipment – Tractors, harvesters and specialized farm machinery
Landscaping Equipment – Compact loaders and utility equipment
Material Handling – Forklifts and lifting equipment

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Common Detroit Diesel Engine Problems We Diagnose & Repair

Our technicians regularly diagnose and resolve the following issues:

Starting Difficulties in Marine Conditions
Saltwater Cooling System Corrosion
Fuel Contamination Issues
Marine Exhaust System Problems

Speak with our Detroit specialists for fast, accurate diagnostics and trusted detroit diesel repair recommendations.

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Why Choose DSL for Your Detroit Diesel Engine Repair and Service

40+

Years in Service

4.3★

100+ Reviews

1983

Founded in Houston

12+

Brands Serviced

Our Clients Speak for Us

Our Case Studies

ISUZU 4LE2 Generator - Start Then Dies (Fix)

Perkins 3-Cyl Turbo - RPM Drop Under Welding Load

DEUTZ TCD 2.9 L4 - ECM Lockout from Regen Bypass

Cummins QSK23 Generator Engine Overhaul, Troubleshooting & Repair

Frequently Asked Questions (FAQs)

Yes. We provide routine Detroit Diesel engine maintenance programs designed to improve reliability, reduce downtime, extend equipment life, and prevent unexpected failures.

Yes. We can source and install genuine Detroit Diesel 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 will cover your area.

Yes. For critical equipment failures, contact us immediately. We will assess your situation and coordinate the fastest available response to help restore your equipment and minimize operational disruptions.

Frequently Asked Questions (FAQs)

The Cummins engine serial number is stamped on the engine dataplate and also on a machined pad on the right-hand side of the engine block near the front. The CPL (Control Parts List) number appears on the dataplate above the serial number — it is a three or four-digit number that identifies the exact specification build of your engine. For ISX and X15 engines, the CPL is essential for identifying which fuel system, turbocharger, and aftertreatment configuration your engine uses, as these change across CPL revisions. Always provide both the serial number and CPL when ordering parts.

Generally no. While the ISB 5.9 and ISB 6.7 share a common engine family, the 6.7L engine has a longer stroke and uses different pistons, liners, crankshaft, and connecting rods. Many gasket dimensions differ, and the fuel system components — particularly injectors and fuel pumps are not interchangeable between 5.9 and 6.7L applications or between mechanical injection and common rail generations. Always verify by serial number and CPL, not by displacement alone.

Yes. We source Cummins marine engine parts QSB5.9-M, QSB6.7-M, QSC8.3-M, QSL9-M, QSM11-M, and QSX15-M with awareness of marine-specific cooling, corrosion, and sensor configurations. Marine Cummins parts orders require the marine engine serial number, which differs from the base industrial engine serial number. Call (281) 446-1230 with your marine engine serial number for parts availability.

We source EGR valve assemblies and EGR coolers for ISM, ISX, ISL, and ISB EPA07-compliant engines; DPF filter elements and DOC assemblies for CM2150 and CM2250 aftertreatment systems; and SCR catalyst assemblies and DEF dosing system components for CM2250 and CM2350 (X15) applications. Aftertreatment system parts require the engine serial number and CM code to confirm the correct configuration. Call us with this information for immediate availability check.

Yes. Our Humble, TX facility performs Cummins ISX, ISX15, and X15 engine overhauls both in-frame and out-of-frame using our in-house machine shop for boring, honing, crankshaft grinding, and head reconditioning. We perform compression testing, CPL-verified parts specification, and a structured run-in procedure on every rebuilt engine. Call (281) 446-1230 to discuss your ISX rebuild project.