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Peterbilt 388 Tractor & Trailer Air Valve Knobs

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Peterbilt 388 Tractor & Trailer Air Valve Knobs

Your semi truck interior has never looked so good! Accent your dash with beautiful, high quality chrome plated aluminum knobs. Features a 388 engraving. Knobs will never tarnish, are scratch resistant, and easy to clean.
Choose shape from drop down menu.
Sold individually.

To Install:
  • Before taking off your plastic knobs, set the yellow and red stickers on your dashboard behind the corresponding valve.
  • Unscrew the plastic knobs and install the corresponding chrome knobs onto each valve.
  • Make sure the set screw on your chrome knob is not already engaged before starting ignition.
  • Screw the button and align the logo the way you want it.
  • Tighten the set screw with a 3/32 Allen wrench, not included.
  • $67.99
    Peterbilt 388 Tractor & Trailer Air Valve Knobs—
    $67.99

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    Description

    Your semi truck interior has never looked so good! Accent your dash with beautiful, high quality chrome plated aluminum knobs. Features a 388 engraving. Knobs will never tarnish, are scratch resistant, and easy to clean.
    Choose shape from drop down menu.
    Sold individually.

    To Install:
  • Before taking off your plastic knobs, set the yellow and red stickers on your dashboard behind the corresponding valve.
  • Unscrew the plastic knobs and install the corresponding chrome knobs onto each valve.
  • Make sure the set screw on your chrome knob is not already engaged before starting ignition.
  • Screw the button and align the logo the way you want it.
  • Tighten the set screw with a 3/32 Allen wrench, not included.
    Peterbilt 388 Tractor & Trailer Air Valve Knobs | Iowa 80