Answer Hello Charles, for both the left burners and the right rear you will need to order NAT gas orifice part number 316237902. For the right front burner you'll need to order part number 316237900. For the oven you'll need to flip the regulator cap to NAT and turn the orifice on the gas valve 2 1/2 turns counter clock wise and adjust accordingly. Thanks! Read More... Answered by AppliancePartsPros.com | Friday, September 29, 2017