NGK 7421 Spark Plug - High-Performance Ignition Solution for Powersports Engines

Ensure optimal engine performance with NGK's high-quality 7421 spark plug, engineered to deliver consistent ignition and maximize horsepower for powersports applications. This essential component is designed to withstand extreme conditions while maintaining peak efficiency for riders who demand reliability and power.

Key Features

• Durable Construction: Precision-engineered electrodes and heat-resistant materials ensure long-lasting performance in high-stress environments.
• Precise Ignition Timing: Advanced design promotes efficient combustion for improved throttle response and fuel economy.
• Wide Compatibility: Fits most 4-stroke powersports engines, making it a versatile choice for motorcycles, ATVs, and UTVs.

Why Choose This Product

Upgrade your ignition system with a spark plug built for durability and performance. NGK's 7421 model offers exceptional heat dissipation, reducing engine knock and extending plug life. Its robust construction ensures consistent spark delivery, even after prolonged use, while the optimized electrode gap enhances combustion efficiency. Whether you're tackling off-road trails or street riding, this spark plug delivers the reliability you need to keep your powersports machine running at its best.