Auburn E5-I-64-4 Spark Plug 322838-752 While the NEMA 4X rating

While the NEMA 4X rating covers environmental protection

Field Reversibility: Simplifies inventory by allowing rotation adjustment to match specific OEM burner requirements

it is fully compatible with non-corrosive refrigerants including R-12

This OEM-spec unit is a direct drop-in for legacy part numbers 1186420

Auburn E5-I-64-4 Spark Plug 322838-752 While the NEMA 4X ratingThe Auburn E5 I 64 4 Spark Plug is a high performance industrial igniter specifically engineered for direct spark ignition (DSI) systems in demanding HVACR and industrial burner environments. This OEM replacement part is constructed with a nickel center electrode and a 1 2 14 NPT thread size to ensure a secure fit and consistent electrical conductivity. Designed for industrial combustion systems, the Auburn spark plug features a robust 7 8 inch hex