NGK Spark Plug Stock # 7162 (Motorcycle/Marine)

The NGK Spark Plug Stock # 7162 (Motorcycle/Marine) is a premium-grade ignition component engineered for high-performance two-stroke and four-stroke engines in both powersports and marine applications. This spark plug delivers consistent, reliable ignition across demanding operating conditions—from trail bikes and jet skis to outboard motors and compact utility engines. NGK's reputation in the OEM and aftermarket sectors stems from decades of precision manufacturing, making this plug a trusted choice for riders and mechanics who demand dependable cold starts and stable combustion across varying fuel mixtures and load conditions.

The NGK DR8EA features a fine-wire center electrode and specially formulated ceramic insulator designed to resist fouling in rich-running engines common to marine and off-road powerplants. The compact 0.8 × 0.7 × 3.1-inch form factor allows installation in tight engine bays and confined cylinder head spaces typical of motorcycle and small-displacement outboard designs. NGK's proprietary electrode material and gap geometry ensure consistent spark production even under fluctuating RPMs, wet conditions, and the thermal stress inherent in two-stroke combustion cycles. The lightweight construction—just 0.09 lbs—minimizes vibration transmission while the corrosion-resistant terminal accommodates both standard cap and suppressor boot configurations found across vintage and modern platforms.

Mechanics and enthusiasts rely on the NGK DR8EA for routine maintenance intervals, engine rebuilds, and performance tune-ups on everything from trail bikes and pit bikes to small-bore outboard motors and portable generators. Proper installation requires confirming original equipment gap specifications before fitting—most applications call for 0.024–0.028 inches—and ensuring the suppressor boot seats fully to maintain radio frequency interference suppression. Stock # 7162 cross-references directly with OEM part numbers across major powersports manufacturers, making it an ideal direct replacement that eliminates guesswork during field repairs or preventive maintenance cycles. Whether you're refreshing ignition components before a season of heavy use or restoring a dormant engine to reliable operation, this NGK plug delivers the predictable performance and longevity that professional technicians expect.