John Deere Diesel Engdine Parts in Houston, TX

When your John Deere diesel engine needs parts, you need a supplier who knows the engine — not just the catalog. Diesel Specialists, Ltd has been sourcing and supplying John Deere diesel engine parts in Houston since 1983. We combine deep product knowledge with our in-house repair capability to help you get the right part, correctly identified, at a competitive price — with the technical support to back it up.

Call (281) 446-1230 for a Diagnostic Appointment 

Need High Quality Diesel Parts?

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Services
Annual Maintenance
Diesel Engine Repair
On-Site Repair In Shop Diesel Repair Diesel Engine Diagnostics
Machine Shop
Diesel Engine Overhaul
Preventive Maintenance
OEM Brands
Yanmar Diesel Engine Parts John Deere Engine Parts Kubota Diesel Engine Parts Perkins Diesel Engine Parts Deutz Diesel Engine Parts Isuzu Diesel Engine Parts
Dyno Testing
Industrial Diesel Generator Repair Fire Pump Repair & Service Heavy Duty Truck Repair Annual DOT Inspection

John Deere Engine Parts We Supply

Our John Deere diesel engine parts inventory and sourcing capability covers the full range of service and repair components:

  • Pistons, rings, and cylinder liners

  • Main bearings, rod bearings, and thrust washers

  • Cylinder head assemblies and gasket sets

  • Head bolts and fastener kits

  • Camshafts, lifters, and timing components

  • Crankshaft and flywheel components

  • Injectors and injector seals

  • Injection pumps and fuel system components

  • Turbocharger assemblies and rebuild kits

  • Water pumps, thermostat kits, and cooling system components

  • Oil pumps and lubrication system parts

  • Gaskets and seal kits — full engine and individual section kits

  • Belts, tensioners, and idlers

  • Air filters, oil filters, and fuel filters

John Deere Engine Models We Support

We supply parts and provide service support for the following John Deere engine families and models:

  • 3029 (3.0L) PowerTech — compact utility and industrial

  • 4024 (2.4L) PowerTech — compact generator and industrial

  • 4039 (3.9L) PowerTech — widely used in compact construction and generators

  • 4045 (4.5L) PowerTech — versatile industrial and agricultural engine

  • 6068 (6.8L) PowerTech — high-output industrial, agricultural, and marine

  • 6090 (9.0L) PowerTech Plus — large industrial and agricultural

  • PowerTech E, M, and PSX series (Interim Tier 4 and Final Tier 4)

  • 6.619L and larger PowerTech industrial configurations

Applications — Where John Deere Engines Are Used

  • John Deere agricultural tractors and combines (OEM engine service)

  • Construction equipment — backhoes, skid steers, motor graders, scrapers

  • Industrial generator sets (John Deere Power Systems)

  • Marine diesel engines — workboats and commercial marine

  • Oil & Gas service equipment and power units

  • Utility vehicles and municipal equipment

  • Equipment with OEM John Deere engine installations by third-party manufacturers

Why Source Your Parts Through Diesel Specialists?

40+

Years in Service

4.3★

100+ Reviews

1983

Founded in Houston

12+

Brands Serviced

Customer Reviews

★★★★★
"Whole crew at diesel specialist are amazing go above and beyond!! Get service especially Miriam always so sweet and kind and Debbie and Delbert as will to help bravo!!!"
Alfredo Ortiz
★★★★★
"Great experience with Diesel Specialist LTD. Everyone was really nice, professional, and helpful. They worked fast and didn’t waste time."
Maricela Razo
★★★★★
"I had ordered a few parts that my dad needed and whenever I had to pick them up, Miriam was there and let me just say, she was VERY helpful, attentive and super friendly!"
Julissa Garcia
★★★★★
"Absolutely amazing people. They go above and beyond! Thank you Diesel Specialist"
D Bolden
★★★★★
"I do a lot of business with diesel specialist and they always put you first and have the kindest front desk personal"
Nick Foster
★★★★★
"Ana is the greatest when it comes to any of our needs!! Diesel Specialists is the go to place for any Diesel needs. We drive all the way from Beaumont area to have our diesel needs taken care of!"
Dean Thompson
★★★★★
"They have extensive knowledge and offer all their expertise to help you with whatever you need; they have good parts"
Julio Maldonado
★★★★★
"Mr. Leo IV has always gone above and beyond, Diesel specialists is the place to go!!"
Charles Skelly

Parts Ordering Process

  • Call or contact us with your engine model, serial number, and the part you need.

  • Our parts staff confirms the correct part number for your specific engine configuration.

  • We check stock and provide pricing and availability immediately where possible.

  • In-stock parts are available for pickup at our Humble, TX facility or can be arranged for delivery.

  • Special order and sourced parts are ordered immediately and you are notified of ETA.

Frequently Asked Questions (FAQs)

WWe source OEM and high-quality OEM-equivalent aftermarket parts. When you call, let us know your preference, we present both options with pricing and availability so you can make the best decision for your application and budget.

Yes. Bring your engine model number and serial number when you call or visit this allows us to identify your exact engine configuration and confirm the correct part, especially for engines that have multiple configurations under the same model designation.

Both. Diesel Specialists is a full-service diesel engine repair shop. If you need the part installed, our certified technicians can perform the work at our Humble, TX facility or, for applicable repairs, in the field.

Our machine shop capability and aftermarket sourcing network allow us to address many obsolete part situations through sourcing equivalent parts, machining worn components back to spec, or engineering workable alternatives. Contact us to discuss your specific situation.

Serving Houston's John Deere Engine Operators

Our parts counter and service facility at 1215 Carpenter Rd., Humble, TX 77396 serves John Deere engine operators across Greater Houston, including Pasadena, Baytown, Conroe, Spring, The Woodlands, Sugar Land, Katy, and throughout Southeast Texas and the Gulf Coast industrial corridor.

Professional Associations

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

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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