High-Performance Spark Plug for QSV91 Engine

Precision-engineered with iridium tip for superior ignition and extended lifespan, ensuring optimal fuel efficiency and reduced emissions. Compatible with part numbers 2866879, 4302738, 4098162, and 4966860.

Durable Construction & Advanced Materials

Features a corrosion-resistant steel shell and alumina ceramic insulator for high thermal conductivity and electrical insulation. Triple gasket seal prevents gas leakage under extreme pressure.

Ideal for Industrial & Heavy-Duty Applications

Designed for QSV91 engines in construction equipment, marine vessels, and power generators. Ensures reliable starts in cold climates and consistent performance under heavy loads.

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