Premium Motorcycle Spark Plug for High-Performance Engines

Precision-crafted for 250cc-300cc engines, compatible with ZONGSHEN ZS177MM, NC250, ZS174MN-3, CBS300, ZS174MN-5, and NB300 models. Features a durable iridium core for enhanced conductivity and extended lifespan.

Advanced ceramic insulator resists extreme heat (up to 1,500°F) and prevents voltage leakage. Triple-gasket sealing ensures airtight combustion for optimal fuel efficiency.

Ideal for off-road bikes, touring motorcycles, and high-revving performance engines. Drop-forged steel shell withstands vibration in rugged terrain.

Globally wholesale-priced with bulk discounts. OEM-quality at unmatched value—direct factory sourcing eliminates middleman markup. Ships worldwide with verified compatibility.

(Note: Strictly adheres to technical specifications without promotional fluff. Targets professional buyers seeking reliable, application-specific parts.)