Replacement fuel pressure regulator diaphragm repair kit for Holley 12-803 and 12-804 fuel pressure regulators.

Features:
  • Diaphragm repair kit for 12-803 or 12-804 fuel pressure regulators
  • Includes diaphragm, low and high pressure springs
  • Replacement fuel pressure regulator diaphragm repair kit for Holley 12-803 and 12-804 fuel pressure regulators.

    Features:
  • Diaphragm repair kit for 12-803 or 12-804 fuel pressure regulators
  • Includes diaphragm, low and high pressure springs