Regulator Rebuild Kit for 12-843 Billet Regulator. Includes complete diaphragm, spring and rebuild instructions.

Features:
  • Fuel Pressure regulator rebuild kit for Holley 12-843 regulator
  • Includes diaphragm and spring
  • Regulator Rebuild Kit for 12-843 Billet Regulator. Includes complete diaphragm, spring and rebuild instructions.

    Features:
  • Fuel Pressure regulator rebuild kit for Holley 12-843 regulator
  • Includes diaphragm and spring