2003 Peterbilt 379 – CAT 3406E (2WS) – Fresh Engine Rebuild

$72000

If you’re looking for a 2003 Peterbilt 379 for sale powered by the legendary Caterpillar 3406E 2WS, this truck is ready to go to work. Featuring a professionally rebuilt engine completed in December 2025, approximately $35,000 invested, and only 79,288 miles since the rebuild, this Peterbilt is built for reliability and long service life.

The truck runs and drives exceptionally well with strong pulling power, smooth operation, and no unusual noises or vibrations. It has been maintained throughout its life and is ready for its next owner.

Specifications

Year: 2003

Make: Peterbilt

Model: 379

Wheelbase: 300”

Engine: Caterpillar 3406E (2WS)

Transmission: 10-Speed Manual

Rear Ratio: 3.55

Mileage Since Rebuild: 79,288

Location: Atlanta, Georgia

Price: $72000

Professional Engine Rebuild

The engine was professionally rebuilt in December 2025.

Approximately $35,000 was invested in the rebuild.

Warranty:

  • One-year warranty from the rebuild (include details if still applicable)

Receipts available.

2003 Peterbilt 379 Double Frame Chassis 300 inches wheelbase.

This 2003 Peterbilt 379 features a full double frame extending from the front drive axle airbag mounts all the way under the sleeper, providing exceptional structural strength compared to trucks with only a partial reinforcement.

The extended double frame is ideal for demanding applications such as:

  • Car hauling

  • Heavy hauling

  • Specialized vocational builds

  • Long wheelbase conversions

  • Custom equipment installations

Combined with the 300-inch wheelbase, this reinforced chassis offers outstanding durability, reduced frame flex under heavy loads, and long-term reliability.

Major Components Replaced

  • New Radiator

  • Six New Injectors

  • Camshaft

  • Turbocharger

  • Vibration Damper

  • Oil Cooler

  • Oil Pump

  • OEM Water Pump

  • Air Compressor

  • Front Structure Rebuilt

Drivetrain

  • 10-Speed Manual Transmission

  • 3.55 Rear Differential

Additional Maintenance

  • New Clutch (August 2022)

  • Complete Steering System Replaced (June 2022)

    • Steering Pump

    • Steering Gearbox

Condition

This truck starts easily, runs cool, pulls strong, and drives exactly as a freshly rebuilt CAT-powered Peterbilt should.

No unusual vibrations.

No abnormal engine noises.

Ready to work immediately.

Included

  • Rebuild receipts

  • Engine rebuild photos

  • Additional photos and videos available upon request

Contact

Call or Text

404-200-3484

FAQ

Is the rebuild documented?

Yes. Receipts and rebuild photos are available.

How many miles are on the rebuild?

79,288 miles.

What engine is in the truck?

1999 Caterpillar 3406E (2WS).

Is the truck ready to work?

Yes. It is fully operational and ready for immediate use.

Can delivery be arranged?

Yes. Delivery assistance may be available.

Cab entry and driver's seat inside 2003 Peterbilt 379
Sleeper compartment inside 2003 Peterbilt 379
2003 Peterbilt 379 CAT 3406E driver side view with 300-inch wheelbase Double Frame Chassis frame
2003 Peterbilt 379 illuminated at night
Turbocharger on rebuilt CAT 3406E engine

2003 Peterbilt 379 CAT 3406E (2WS) – Walkaround Video

Watch a complete walkaround of this 2003 Peterbilt 379 powered by the legendary Caterpillar CAT 3406E (2WS) engine. This truck features a 300-inch wheelbase, a 10-speed manual transmission, and a professional engine rebuild completed in December 2025.

The video shows the truck inside and out, including the exterior, frame, sleeper, interior, engine condition, and overall appearance. It also demonstrates the truck running and highlights its excellent mechanical condition.

Highlights

Price: $72,000

2003 Peterbilt 379

CAT 3406E (2WS)

Professional engine rebuild (December 2025)

Approximately $35,000 invested in the rebuild

Approximately 79,288 miles since rebuild

300-inch wheelbase

10-speed manual transmission

3.55 rear ratio

Rebuild receipts available

Runs and drives excellent

Ready to work immediately

If you have any questions or would like additional photos, videos, rebuild documentation, or shipping information, feel free to contact us. Delivery assistance may be available.

2003 Peterbilt 379 CAT 3406E driver side view with 300-inch wheelbase
2003 Peterbilt 379 passenger side showing CAT 3406E truck for sale
Front grille of white 2003 Peterbilt 379 CAT 3406E
Rear chassis and frame of 2003 Peterbilt 379 ready for fifth wheel installation
Front view of 2003 Peterbilt 379 with CAT 3406E engine
Passenger side front angle of 2003 Peterbilt 379 semi truck Double Frame Chassis
Driver seat and interior of 2003 Peterbilt 379
Dashboard and steering wheel inside 2003 Peterbilt 379
Driver entrance and cab of 2003 Peterbilt 379
Dashboard gauges illuminated while driving 2003 Peterbilt 379 CAT 3406E
CAT 3406E engine after professional rebuild
Freshly rebuilt 1999 Caterpillar 3406E 2WS engine