Prototype inventory — not live marketplace data.
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MODEL LINEAGE

Peterbilt 579 Generations & Model History

Peterbilt describes the New Model 579 launched in early 2021 as a thorough redesign and major evolution. Earlier and New 579 trucks should be separated in research, then verified by model year and build information.

Before the early-2021 major evolution

Earlier Model 579 production

Earlier 579 production spans multiple model-year, sleeper, powertrain and technology updates. Do not treat all pre-redesign trucks as mechanically identical.

How to identify

  • Earlier grille, hood and dashboard design
  • Model-year-specific instrument and safety equipment
  • Confirm factory specification

Verify on the truck

  • Engine and transmission model
  • Sleeper/cab configuration
  • Aftertreatment and safety-system history

Launched early 2021

New Model 579

Peterbilt's New Model 579 introduced a new sloped hood and aero package, a 15-inch digital display, smart steering wheel and revised cab/sleeper environment.

How to identify

  • New sloped hood and exterior aero treatment
  • 15-inch digital display
  • Smart steering wheel and revised interior

Verify on the truck

  • PACCAR or other installed powertrain
  • Digital Vision and ADAS equipment if claimed
  • Software, service and campaign records
Open generation guide

Engine context

Transmission context

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Verify the actual build

Truck Build ReviewVIN, labels & build sheetsTruck Spec Sheet Builder

Sources & technical references

Primary manufacturer and government sources support the broad history and verification context. Specifications still need to be confirmed for the individual truck.

Peterbilt — launch of the New Model 579Peterbilt — first production New Model 579Peterbilt — current Model 579 product information