Truck Engine Repair, Rebuild, Overhaul & Conversion in Spring, TX

Blown head gasket, rod knock, or engine losing power? No problem. Our team offers full-service diesel engine repair, rebuild, and conversion services to keep your trucks moving and your business running.
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Diesel Engine Repair in Spring, TX

We diagnose and repair everything from injectors and head gaskets to complete overhauls and long block replacements. If your engine is beyond repair, we offer engine conversions and replacements tailored to your truck’s specs and your budget.

Our diesel techs handle Detroit, Cummins, CAT, and more. We also support conversion upgrades and modern emissions-compliant replacements for aging rigs.

Common engine services include:

  • In-frame and out-of-frame engine rebuilds
  • Cylinder head and gasket replacement
  • Full diagnostics and compression testing
  • Engine conversions and replacements
  • Oil pan, timing, and internal repairs

What Makes Us Different

Our mobile units cover a 150-mile radius around Spring, TX, offering on-site diagnostics and small repairs. For major engine work, our fully equipped shop is ready to tackle even the toughest jobs.

Our ASE-certified team treats every engine like it’s their own. We’ll work with you to determine if a repair, rebuild, or conversion makes the most financial sense—then deliver high-quality, durable results. Here’s what you can expect:

  • Complete heavy-duty diesel engine service
  • Rebuilds and conversions for all major brands
  • In-shop and mobile service options
  • Transparent quotes and repair consultations
  • Support for single trucks and large fleets

Schedule Your Engine Repair Now: Call 281-808-7814!

If your diesel engine needs attention, don’t wait for a breakdown. Call 281-808-7814 today to schedule your repair, rebuild, or conversion with Fleet Iron Garage. We’ll get your rig back to work.

FAQs

What Areas Do You Serve For Heavy-Duty Engine Repair?

As well as Spring, Texas, we also proudly service the following areas: Houston, TX; Galveston, TX; Beaumont, TX; College Station, TX; Huntsville, TX; Livingston, TX; Bryan, TX; Conroe, TX; and The Woodlands, TX.

What’s the Difference Between an Engine Rebuild and Overhaul?

Both involve replacing worn parts, but a rebuild typically refers to restoring the engine to factory condition, while an overhaul may focus on key performance components without replacing every internal part.

When Should I Consider an Engine Conversion?

Engine conversions are ideal when parts for your current engine are hard to find, you want better fuel efficiency, or you’re upgrading to meet emissions standards. They’re also cost-effective alternatives to frequent major repairs.

How Can I Get Heavy-Duty Engine Repair?

If you're ready to schedule your diesel engine service, call Fleet Iron Garage today at 281-808-7814 and speak with our expert diesel technicians.

Frequently Asked Questions

FAQs

Find detailed responses to some of our most frequently asked questions.

What Types of Repairs Do You Offer?

We offer full mechanical repairs for heavy-duty trucks, trailers, buses, RVs, and equipment. Services include engine work, brakes, suspension, hydraulics, driveline, aftertreatment systems, electrical, and DOT-compliant repairs.

Do You Offer Mobile Repair Services?

Yes, we provide mobile repair across a 150-mile radius of Spring, TX. Many common repairs can be completed on-site, including diagnostics, brakes, suspension, hydraulics, and aftertreatment service.

What Engines Do You Service?

We service all major diesel engines, including Cummins, CAT, Detroit, PACCAR, Volvo, International, and more. We provide diagnostics, repair, rebuilds, and conversions for both single trucks and fleet vehicles.

Do You Repair Hydraulic Cylinders?

Yes, we perform hydraulic repairs, including cylinder rebuilds, pump and valve repair, hose replacements, and system diagnostics for trucks, trailers, and heavy equipment.

Can You Perform Aftertreatment Repairs?

We provide complete EGR and DPF repair and cleaning, SCR and DEF system service, forced regenerations, and emissions diagnostics to help keep your truck compliant and running smoothly.

Do You Perform Transmission & Clutch Repairs?

Yes, we offer diagnostics, clutch replacements, transmission repairs, rebuilds, and fluid services for heavy-duty manual, automatic, and AMT transmissions.

Do You Offer Suspension Repair?

Yes, we service all types of suspension systems, including leaf spring and air ride. We provide repairs for shocks, bushings, air bags, linkages, and complete suspension overhauls.

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Contact Us

Let us know what is going on with your vehicle, and we will get back to you soon with a quote.

Contact Information

Hours

Mon - Fri: 7:00AM - 9:00PM

Location

23231 W. Hardy RD
Spring TX 77373
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