Diesel Engine Parts
in Houston & Humble, TX

OEM & Aftermarket Diesel Engine Parts Shipped Across United States of America

When diesel equipment goes down, the part that gets it running again needs to be the right one correctly identified, in stock, and available the same day if possible. Diesel Specialists, Ltd has operated as a diesel engine parts supplier and service shop in Humble, TX since 1983, supporting industrial operators, commercial fleet managers, equipment rental companies, construction contractors, and oil & gas facilities across Greater Houston. We stock OEM and quality aftermarket components for the major diesel engine platforms powering Houston's industrial and commercial equipment and we back every parts transaction with hands-on technical expertise, not just a catalog lookup.


OEM & Aftermarket parts for your industrial equipment.

Need High Quality Diesel Parts?

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Diesel Engine Brands We Stock & Support

We supply genuine OEM and quality aftermarket parts for major diesel platforms with direct factory channels and experienced cross-reference support. Don't see your engine brand listed? Call (281) 446-1230. We source across a wide range of additional diesel platforms. Provide your engine model and serial number for the fastest response.

Perkins - Filters, pumps, injectors, gasket sets, overhaul kits — 400, 1000, 1100, 1300, 2200, and 2800 series. Generator, agricultural, industrial, and marine applications.

DEUTZ - Air-cooled and liquid-cooled families. Filters, belts, tensioners, fuel system, cooling components, and ECMs across FL 912, FL 913, TCD 2011, TCD 2012, and TCD 3.6–16.0 series.

Isuzu - Industrial and truck applications C240, 4BD1, 4BG1, 6BG1, 4HK1, 6HK1 series. Service kits, injectors, fuel system, and electronic components.

John Deere - PowerTech 3029, 4045, 6068, 6090 series — Tier 3, iT4, and T4F. Emissions components, cooling, electrical, and overhaul kits.

Yanmar - TNV, TNE, marine, and generator series. Service kits, injection components, and cooling parts for compact and mid-range applications.

JCB - Dieselmax 320/4, 430, 444, 448, and 672 series. Service items, fuel system, turbocharger, gasket sets, and Ecomax Tier 4 components.

FPT (Iveco) - NEF 4.5L, NEF 6.7L, Cursor 9, Cursor 11, and Cursor 13. Fuel system, emissions components (EGR/DPF/SCR), service filters, and electronics.


Rehlko (Kohler) - Industrial diesel generator engines including KD-series and Kohler Power genset applications. Filters, fuel parts, rebuild kits, and electrical components.

Kubota - D-, V-, and WG-series engines — IDI and DI configurations. Gasket sets, injectors, injection pumps (Denso/Bosch), overhaul kits, and glow plug systems.

Caterpillar - Select generator engine applications C4.4, C6.6, C7, C9, C13, and C15 series. Service filters, gaskets, cooling components, and fuel system parts.

Cummins-ISB, ISM, ISX, QSB, QSL, and QSM series commercial and industrial applications. Service kits, filters, injectors, and cooling system components.

Detroit Diesel- Series 60 and DD13/DD15/DD16 engine parts for commercial truck and industrial applications. Filters, gaskets, seals, and fuel system components.

Common Parts & Service Kits We Stock

Filters & Maintenance Consumables

  • Fuel filters — primary and secondary, all major brands

  • Oil filters — OEM and cross-reference equivalents

  • Air filter elements — standard and heavy-duty radial seal

  • Coolant and hydraulic filters

  • Filter brands stocked: Fleetguard, Baldwin, Donaldson, WIX, Racor

Engine Service & Overhaul Kits

  • PM and tune-up kits — major brands in stock

  • In-frame overhaul kits: rings, bearings, gaskets

  • Out-of-frame rebuild kits: full component packages

  • Re-ring sets — pistons, rings, and liners by engine model

  • Major gasket sets and head gasket kits

Fuel System Components

  • Injectors — new, remanufactured, and exchange

  • Mechanical and electronic injection pumps

  • Common rail high-pressure pumps and injectors

  • Fuel lift pumps and transfer pumps

  • Fuel lines, fittings, and filter housing assemblies

Turbochargers & Air System Parts

  • New and remanufactured turbocharger assemblies — same-day on select units

  • Turbo rebuild and repair kits

  • Variable geometry turbo (VGT) actuators

  • Intercoolers and charge-air cooler assemblies

  • Intake manifold components and air inlet hardware

Cooling System

  • Water pump assemblies and repair kits

  • Thermostats and housing gaskets

  • Radiator and coolant hoses

  • Fan clutches and fan drive components

  • Coolant additives and antifreeze concentrate

Electrical & Starting System

  • Starter motors — 12V and 24V systems

  • Alternators — OEM and heavy-duty aftermarket

  • Glow plugs and glow plug controllers

  • Sensors: oil pressure, coolant temp, crankshaft, camshaft

  • ECMs, wiring harnesses, and harness repair components

Drivetrain & Mechanical

  • Timing gear sets, timing chains, and tensioners

  • Timing belts and belt kits (applicable engines)

  • Drive belts — V-belt and serpentine

  • Flywheel ring gears and clutch components

  • Connecting rods, crankshaft components, and bearings

Gaskets, Seals & Fasteners

  • Complete engine overhaul gasket sets by model

  • Individual head gaskets — OEM and MLS aftermarket

  • Crankshaft front and rear main seal kits

  • Valve cover, timing cover, and sump gaskets

  • Head bolt and fastener kits

Same-Day Parts Availability — In-Stock for Fast Turnaround

  • Turbochargers — We stock new and remanufactured turbocharger assemblies for select high-demand applications and can source same-day or next-day on many others. Turbo repair kits and cartridge assemblies are stocked for common Garrett, Holset, IHI, Mitsubishi, and BorgWarner fitments used across major industrial diesel platforms.

  • Filters & Consumables — Full filter inventory in stock for Fleetguard, Baldwin, Donaldson, and WIX equivalents across all brands we support. Walk-in, will-call, and same-day local delivery available.

  • Injectors & Fuel System — Exchange and rebuilt injector cores available for common Perkins, Isuzu, Kubota, and John Deere applications. High-demand fuel pumps and lift pumps stocked for priority models.

  • Gasket Sets & Overhaul Kits — Major overhaul gasket sets and PM kits in stock for Perkins, Isuzu, Kubota, and John Deere primary engine families.

CALL US TODAY!

Diesel Engine Parts by Application

Commercial Truck & Heavy Duty Fleet

We supply diesel engine parts for Class 6–8 commercial trucks and heavy duty fleet vehicles operating across the Houston metro. Common applications include Cummins ISX and X15, Detroit Diesel Series 60 and DD15, and Caterpillar C13 and C15 engines used in semi-trucks, dump trucks, vocational vehicles, and fleet equipment. Filters, injectors, gaskets, turbochargers, and overhaul kits are available for the most common fleet engine platforms.

Industrial Diesel Generators & Standby Power

Generator engine parts require precise identification — the same kW rating can use very different engine platforms depending on manufacturer and model year. We support generator engine platforms including Perkins (Olympian, FG Wilson, Broadcrown), John Deere PowerTech (Kohler/Rehlko, FG Wilson), Cummins QSB and QSL, Caterpillar C-series generator engines, Isuzu C and D series, Kubota V-series, and Yanmar industrial series. Parts in stock include service filters, gaskets, water pumps, injectors, and overhaul kits.

Construction & Heavy Equipment

Construction equipment engines — excavators, backhoes, wheeled loaders, telehandlers, and compaction equipment — use a wide range of diesel platforms from John Deere, Isuzu, Kubota, JCB Dieselmax, FPT NEF and Cursor, and Caterpillar. We stock and source service parts for these applications with serial-number-level identification to confirm correct fitment across equipment brands and model years.

Oil & Gas, Industrial Plants & Marine

Industrial diesel engines in oil & gas operations, manufacturing plants, and marine applications run under demanding duty cycles where parts availability and quality directly affect production. We supply OEM and OEM-equivalent parts for Perkins, Deutz, John Deere, and Cummins industrial engines used in compressors, pump drives, power generation, and workboat applications. Fleet accounts and regular industrial customers are welcome to discuss blanket order and PM parts programs.

OEM vs. Aftermarket Diesel Parts — What's the Right Choice?

We offer both OEM (Original Equipment Manufacturer) parts and quality aftermarket alternatives for every brand we support. Here is how we advise customers on the choice:

  • Choose OEM parts when — the equipment is under manufacturer warranty; the application is mission-critical (fire pump engines, standby generators, safety systems); or the engine has a known history of sensitivity to non-OEM components (common on some electronically controlled common rail systems).

  • Choose quality aftermarket parts when — the equipment is out of warranty and the aftermarket part matches OEM dimensional and material specifications; cost savings are important and the application is standard industrial or fleet use; or OEM parts are on extended lead time and an equivalent aftermarket part is available in stock.

  • What we will not do — We do not supply cheap, low-quality aftermarket parts to save a few dollars on an order. Every aftermarket component we stock or source is from established manufacturers with a track record in industrial diesel applications. If we do not believe an aftermarket part is a reliable alternative, we tell you.

When you call, our parts staff presents both options with pricing and availability. You decide, we source it.

Cross-Reference Support & Typical Lead Times

Cross-Reference & Parts Identification

  • Convert OEM part numbers to quality aftermarket equivalents — often available in stock when OEM is on lead time

  • Identify superseded and obsolete part numbers — Perkins, Deutz, and Isuzu have extensive supersession histories

  • Match specifications across brands for cross-compatible applications

  • Locate hard-to-find parts through our sourcing network — call with your engine serial number, not just the part number

  • Engine serial number lookups to confirm the correct part for your specific build variant

Typical Lead Times

In-Stock

Immediate pickup

Same-day local delivery Next-day ship via UPS/FedEx

Regional Warehouse

1–2 Business Days

Expedite options available on request

Factory Direct / Special Order

2–21 Business Days

Varies by brand; exact ETA quoted at order

Parts Backed by Shop Expertise

Most diesel parts distributors sell you a box and move on. Diesel Specialists is a full-service diesel engine repair shop that also runs a parts counter, which means every parts transaction is backed by technicians who have actually worked on these engines. That difference matters when a part number is ambiguous, a configuration isn't straightforward, or the failure mode suggests the part you think you need may not be the root cause.

✔    Installation Assistance — Phone guidance on fitment, torque specs, fluid capacities, and installation sequence for parts you install yourself.

✔    Professional Installation — If you need the part installed, our in-shop or mobile technicians do the work. Parts supply and repair service under one roof.

✔    Failure Analysis — If a part failed prematurely, our technicians can assess whether the cause was the component itself or an underlying engine condition driving repeat failures.

✔    Warranty Support — OEM and aftermarket warranty claims processed through us. Core exchange management for injectors and starters.

✔    Fleet & PM Programs — Scheduled parts supply for preventive maintenance programs: blanket orders, kitting by equipment unit, and annual budget planning for fleet accounts.

Diesel Engine Parts Near You — Serving Greater Houston and Humble

Our parts counter and full-service diesel repair facility is located at 1215 Carpenter Rd., Humble, TX 77396 — centrally positioned to serve the Greater Houston industrial and commercial corridor. Whether you need diesel engine parts in Houston for a fleet breakdown, a generator overhaul at an industrial facility, or construction equipment repair on a job site, we are a practical drive or delivery run from your operation.

 We regularly serve customers and deliver parts to operators located in:

  • Houston — all areas including the Ship Channel, Energy Corridor, Northeast Houston, Northwest Houston, and downtown industrial zones

  • Pasadena and Deer Park — petrochemical, industrial, and fleet operators

  • Baytown — refinery-adjacent industrial and marine operators

  • Conroe, Spring, and The Woodlands — commercial fleets, construction, and oil & gas equipment

  • Katy, Sugar Land, and Pearland — commercial fleet and construction operators

  • La Porte, Channelview, and Highlands — industrial and marine diesel operators

  • Beaumont and Southeast Texas corridor — sourced and shipped or coordinated for urgent parts needs

Call (281) 446-1230 | 1215 Carpenter Rd., Humble, TX 77396 | Mon–Fri 7:30 AM – 5:00 PM | [email protected]

Serving Customers Nationwide

We supply diesel engine parts to customers throughout the United States, including:

  • Construction Companies

  • Agricultural Operations

  • Municipal Fleets

  • Oil & Gas Facilities

  • Industrial Manufacturers

  • Marine Operators

  • Equipment Rental Companies

  • Power Generation Facilities

  • Government Agencies and Contractors

Whether your operation is located in Texas, California, Florida, New York, Pennsylvania, Illinois, Georgia, or anywhere else in the United States, our team can help source and deliver the diesel engine parts you need.

Support From the Shop

Buying from us is more than a box on a counter. We provide personal customer service.

  • Installation Assistance: Phone guidance, diagrams, torque specs, fluid capacities.

  • Professional Install: In-shop or mobile (where applicable).

  • Warranty Support: OEM & aftermarket warranties; core exchange management.

  • Value-Adds: PM programs with scheduled parts, blanket orders, kitting, and annual budget planning.

How to Order

Option 1

Request a Quote Online

Include part numbers (if known), engine model/serial, equipment make/model, quantity, and urgency.

Option 2

Email Us Parts Requests

Please email part numbers, photos or serial tags to,

Option 3

Call Our Parts Department

Mon-Fri 7:30am-5:00pm

*Typical response within 2 business hours.

Pickup, Delivery & Shipping

  • Will-Call Pickup: Same-day for in-stock items (order before 2:00 PM).

  • Local Delivery (Greater Houston): Free within 10 miles on $500+ orders; emergency same-day available (fees apply).

  • Shipping: UPS/FedEx (Ground/Next-Day), LTL for bulk; international available.

Ready to Order?

Frequently Asked Questions (FAQs)

Diesel Specialists in Humble, TX stocks select new and remanufactured turbochargers, repair kits, cartridges, and actuators. Same-day pickup is available for in-stock items ordered before 2:00 PM. Call (281) 446-1230 for availability.

Compare OEM parts with trusted aftermarket alternatives. Quality aftermarket filters, gaskets, pumps, and belts often provide reliable performance at a lower cost without compromising durability.

Many diesel technicians and fleet operators choose Diesel Specialists for accurate parts identification, OEM and aftermarket options, and fast local availability backed by diesel engine expertise.

Yes. Diesel Specialists stocks Perkins filters, injectors, gasket sets, water pumps, overhaul kits, and service parts for a wide range of industrial, generator, agricultural, and marine engines.

VISIT US

DIESEL SPECIALISTS, LTD

1215 Carpenter Rd.
Humble, TX 77396

Phone: 281-446-1230

Fax: 281-446-1890

1215 Carpenter Rd, Humble, TX 77396, USA

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