For the Peterbilt All Models, start with the make-specific code guidance: Peterbilt paint color code: obtainable by contacting Peterbilt, who can determine the color code. When a color code is not available, the fallback information is the PPG or Dupont (Axalta) paint formula number. In short, the color code comes from Peterbilt, and if no code exists, rely on the PPG or Dupont (Axalta) paint formula number as the paint reference. If the label is missing, ask a dealer parts department for a VIN lookup before ordering paint.