NGK Standard spark plugs (in the iconic NGK 'yellow box' packaging) are a proven OE cornerstone and technology customers have relied on for decades. Engineered specifically for OE applications, NGK Standard spark plugs provide OE quality nickel alloy reliable performance and design. NGK's legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance, while triple gasket sealing prevents combustion gas leakage. Solid 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties. NGK Standard spark plugs are proven technology that offer reliable performance. Actual OE or equivalent replacement spark plug. NGK Standard plugs are treated with corrosion-resistant plating to ensure ease of installation and removal. SNOW - 2008 SKI-DOO, 2002-1996 YAMAHA

TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
Pure alumina silicate ceramic insulator provides superior strength and better heat transfer
Trivalent metal plating for superior anti-corrosion and anti-seizing properties
Corrugated ribs prevent flashover
Copper core aids in heat removal
Triple seals prevent leakage

NGK's Part Number 4677 standard spark plugs are designed to provide reliable ignition performance for a variety of snowmobile models including Ski-Doo and Yamaha. Engineered with OE-specific precision, these spark plugs feature a high-grade nickel alloy center electrode that ensures consistent ignition and long-lasting durability. The ceramic insulator made from alumina silicate delivers superior strength and effective heat transfer, helping to maintain optimal engine performance under demanding conditions. With a triple gasket sealing system, these plugs prevent combustion gas leakage, enhancing engine efficiency and reliability.
Each spark plug is coated with trivalent metal plating, offering excellent resistance to corrosion and seizing, which facilitates easier installation and removal during maintenance. The copper core enhances heat dissipation, preventing overheating and ensuring stable operation across a broad heat range. Designed to fit a series of 2010-2011 Ski-Doo Summit models and other compatible snowmobiles, these plugs are a proven OE replacement that maintains the high standards you expect from NGK. These plugs are packaged in the iconic NGK yellow box, highlighting their quality and authenticity.
Whether you're performing routine maintenance or troubleshooting ignition issues, NGK Part Number 4677 spark plugs deliver dependable performance for snowmobiles, ensuring smooth starts and efficient combustion during winter rides. Their robust construction and advanced materials make them suitable for extreme cold temperatures, providing peace of mind during harsh winter conditions. With a focus on durability, corrosion resistance, and optimal heat management, these spark plugs are an essential component for maintaining peak engine performance and longevity.

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