2015 Peterbilt 579 — Paint Color Codes & Touch‑Up Guide

Quick reference

Note: 2015 Peterbilt 579 paint was typically ordered-to-spec. Peterbilt/PACCAR paint codes are tied to your VIN and build sheet and may differ even for similar color names. Always verify your exact code from the truck’s label or with a Peterbilt dealer/paint supplier before ordering touch-up.

Where to find your paint code

On the 2015 Peterbilt 579, the paint code is usually printed on the cab certification/build labels. Check these spots:

• Driver’s door jamb/B‑pillar: Look for the Vehicle Certification label. It often lists Primary Paint and, if applicable, Secondary/Accent Paint with their codes.
• Inside the cab: Some trucks have a chassis/specification label on the rear cab wall (behind the driver seat) or near the passenger footwell. This may include paint color descriptions and codes.
• Build sheet packet: If you have the original build documentation in the cab literature pouch, the paint colors and codes are listed there.
• If labels are missing or repainted: Call a Peterbilt dealer with your full VIN. They can pull the original PACCAR/PPG color code(s) from the build record.

Pro tip: Photograph the label in good light so you capture the full alphanumeric code and any suffixes (they matter for metallic/variant formulas).

Best touch-up paint sources

• Peterbilt dealer parts counter: Can look up your exact PACCAR color by VIN and supply OEM-spec paint or mix via their PPG/Matrix network. Best for guaranteed formula accuracy.
• AutomotiveTouchup: Will custom-mix by Peterbilt/PACCAR code; available as pens, bottles, aerosols, or pints/quarts for spray guns.
• Tcoat custom-mix: Independent mixers can match by code or perform a spectro read from a fuel door/undercab panel if the code is unknown.
• Dupli-Color: Useful for universal whites, blacks, silvers, and reds if you visually verify a match. For fleet and tri-coats, prefer a code-based custom mix.

How to use touch-up paint

• Clean and prep: Wash, then degrease with isopropyl alcohol or wax/grease remover. Feather any lifted edges with 1500–2000 grit. Rust spots should be taken to clean metal.
• Primer (as needed): Use an etch or epoxy primer on bare metal. Let flash and nib with 2000 grit.
• Basecoat: Shake thoroughly. For pens/bottles, wick off excess and build thin layers. For aerosol/HVLP, apply light, even passes at 6–8 inches, allowing flash between coats.
• Clearcoat: Once the base flashes matte, apply 1–2 coats of clear to restore gloss and protection. Allow to cure, then lightly polish after 24–48 hours.

For large panels, masking hard edges can highlight blend lines. If the repair is bigger than a quarter, plan to blend into adjoining areas.

Color matching tips for pearls and tri-coats

• Verify the exact code and variant: PACCAR/PPG formulas can have variants for flop/metallic size. The suffix on your code points to the correct formula.
• Do a spray-out card: Especially for metallics/pearls. Compare at multiple angles (face, 45°, and flop) in daylight.
• Control film build: Tri-coats (ground color + mid pearl + clear) change with each pass. Keep your midcoat passes consistent and light, and measure distance/speed.
• Orientation matters: Metallics will darken if applied wet/heavy and lighten if dry. Maintain gun distance and overlap to avoid mottling/striping.
• Blend smart: For metallic/pearl finishes, blend the color into the adjacent panel and clear a larger area to hide transitions.

Because many 579s were custom-ordered, your truck’s “Red” or “Blue” may not match another 579 with the same common name. Confirm via VIN or with a spectro read when in doubt.

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