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commonly used in HVAC systems for gas burner ignition
Model: 4TF18
and similar equipment with medium to light deposits
🔹 Dimensions & Specs
Spark Plug Champion D23 commonly used in HVAC systemsThe Champion D23 Spark Plug is a heavy duty industrial spark plug, often used in older engines, agricultural machinery, and industrial equipment. It is also cross referenced with the Stitt 86 plug, indicating compatibility in similar applications. Specifications: Thread Diameter: 18mm Thread Reach: 12. 7mm (0. 5 inch) Seat Type: Flat Hex Size: 23. 8mm (15 16 inch) Tip Configuration: Non projected Construction: Standard Terminal Type: Removable Part