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Services

From diagnostics to full engine builds, Gear 5 Engines handles diesel work for daily drivers, work trucks, and fleets.

Diesel Repair

Diagnostics and repair for Powerstroke, Cummins, and Duramax — from check-engine lights to major mechanical work.

Custom Engine Builds

Ground-up performance and stock rebuilds, blueprinted and assembled to spec for reliable power.

Performance & Tuning

Turbo upgrades, fuel system work, and tuning to get the most out of your diesel without sacrificing durability.

Fleet & Truck Maintenance

Preventive maintenance and scheduled service to keep work trucks and fleets on the road.

Fuel Systems

Injector, pump, and fuel delivery service and replacement for hard-starting and rough-running diesels.

Diagnostics

Computerized diagnostics to pinpoint problems fast and quote work with no guesswork.

How it works

Tell us the symptoms

Call or send a message describing what your truck is doing. We ask the right questions up front.

Diagnose & quote

We run computerized diagnostics, pinpoint the issue, and give you a clear, up-front estimate.

Fix it right

Quality parts and careful workmanship, then we get you back on the road as fast as we can.

Not sure what you need? Just ask.

Describe the problem and we'll point you in the right direction — no pressure.

Gear 5 Engines

Gear 5 Engines is a diesel repair shop and engine builder in Red Oak, TX. From diagnostics and rebuilds to performance engine builds, we keep your truck running strong.

Hours

  • Mon–Fri: 8:00 AM – 6:00 PM
  • Sat: 9:00 AM – 2:00 PM
  • Sun: Closed

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