NGK SPARK PLUG CR9EIX (3521)

NGK SPARK PLUG CR9EIX (3521)

Type: High-quality NGK spark plug, designed for optimal performance. Nickel or iridium body depending on the model.

• Standard thread, copper or iridium center electrode
• Excellent resistance to heat and corrosion
• Reliable cold starting and stability at high RPM

Recommended Applications

• Used on motorcycles, ATVs, personal watercraft, and small engines
• Compatible with various OEM models – see manufacturer's manual

Installation Tips

• Recommended tightening torque: 18 to 25 N·m
• Typical electrode gap: 0.7 to 0.9 mm
• Install on a cold engine to avoid thread damage