top of page

The N-H420 CNG regulator is a high pressure regulator with for use with up to 275 HP engines.   This regulator is equipped with a silicone secondary diaphragm.


Model Specific: N-H420-SONGA

Zero Governor will not pass fuel w/out a minimum -0.5" H2O Vacuum signal from Carburetor

H420 Natural Gas Regulator/Converter/Vaporizer

  • Most Items come with warranty of 1 year from date of shipment. Please contact Customer Service to determine the eligibility for this specific part for refund or return. (

bottom of page