Spark Plug for Rotary Engine, Standard Type, One-Piece, 2-Electrode

[NGK B7EM 3321 Spark Plug for Rotary Engines - Standard Plug, One-Piece, 2-Electrode Type - Maintenance, Repair, Replacement Parts]
・NGK Spark Plug
Specifications
・Part Number: B7EM
・Stock Number: 3321
・Terminal Type: Solid
・Type: 2-Electrode
・Thread Diameter: 14mm
・Thread Length: 19.5mm
・Hex Size: 20.8mm
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*The image is for illustrative purposes only. Product designs and specifications shown are subject to change without prior notice. Thank you for your understanding.