Upgrade your ignition system with this genuine NGK LZFH / 8381 spark plug cap. Designed for durability and performance, this compact 90° elbow cap offers a secure, low-profile connection from your ignition wire to the spark plug. It accepts 10 mm, 12 mm, or 14 mm plug threads with terminal studs—making it versatile for a wide range of bikes, small engines, or custom systems.

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• Non-resistor design — ensures zero interference with high-performance magnetos, CDI units, or aftermarket analog ignition systems
• 90° elbow angle — ideal for tight engine bays or routing wires neatly
• Wide fitment range — compatible with 10 mm, 12 mm, and 14 mm spark plug threads (with terminal stud) 
• Durable construction — made from robust phenolic resin and EPDM rubber to resist heat, vibration, moisture, and electrical stress 
• Waterproof sealing — boots and internal seals help keep moisture out and maintain spark integrity
• Compact and reliable — ideal replacement for the now-discontinued original NGK LZFH cap