Spark Plug Champion Stitt 79 Outside Head Diameter: 4-17/32 inches

Outside Head Diameter: 4-17/32 inches

Side Port: Features a 1/4" male flare side port for attaching hoses or gauges

Hydro-Balance ZipFoam™ Condenser Coil Cleaner (ZC-01)

Three-Piece Design: Allows for a custom fit in all installations without the need for set screws

Spark Plug Champion Stitt 79 Outside Head Diameter: 4-17/32 inchesThe Champion W18 Spark Plug (Crown part number W18, also cross referenced as Stitt 79) is a heavy duty industrial spark plug designed for high compression and high temperature environments. Here's a detailed breakdown: Technical Specifications: Thread Diameter: 23mm Thread Reach: 16mm Seat Type: Flat Hex Size: 23. 8mm Tip Configuration: Non projected Construction: Standard Terminal Type: Removable Part Number: Champion 518 (W18) Cross Reference