NGK_BP6EY
NGK BP6EY (6278) Ordinary Spark Plug
🔹 Overview
Reliable copper-core spark plug with nickel electrodes, designed for stable ignition and long service life. Suitable for motorcycles, scooters, ATVs, and small engines.
🔹 Specifications
Thread Diameter: 14 mm
Reach: 12.7 mm (1/2")
Hex Size: 20.8 mm (13/16")
Seat Type: Gasket
Electrode Material: Nickel
Heat Range: 6
Resistor: No
Gap: 0.7–0.8 mm (pre-set)
🔹 Applications
Commonly used in:
Yamaha RD250 / RD350 (1970s–1980s)
Vespa PX125 / PX150 (classic 2-stroke scooters)
Mercury / Johnson / Evinrude Outboard Motors (various 2-stroke models)
Chainsaws, lawnmowers, and portable generators
(Applications vary by year and engine model — always confirm with OEM manual.)
🔹 Cross References
Denso: W20FS-U
Bosch: W7AC
Champion: L82C
Marine OEM: 0336387 (Evinrude/Johnson)
🔹 Order Information
MOQ: 4000-5000 pcs
Shipping: Air/Sea
Warranty: 12 months

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