NGK 6421 Spark Plug - High-Performance Ignition Solution for Powersports Engines

Ensure peak engine performance with NGK's high-quality 6421 spark plug, engineered to deliver consistent ignition and power for your powersports equipment. This essential component is designed to enhance fuel efficiency and reliability in demanding riding conditions.

Key Features

• Durable Nickel Alloy Construction: Resists corrosion and wear for long-lasting performance in harsh environments.
• Precision Electrode Design: Optimized gap and electrode geometry for improved ignition efficiency and reduced misfire risks.
• Universal Compatibility: Fits a wide range of powersports engines for easy installation and broad application versatility.

Why Choose This Product

Upgrade your engine's ignition system with NGK's trusted spark plug, known for its exceptional durability and performance in high-torque applications. The 6421 model offers superior heat dissipation, ensuring consistent combustion and extended spark plug life. Whether you're tackling off-road trails or street riding, this plug maintains optimal engine efficiency while reducing maintenance intervals. Its robust construction makes it ideal for both recreational and professional riders seeking reliable power delivery.