If your small engine is running rough, hard to start, or just due for a tune-up, a fresh spark plug can make a world of difference. This is the genuine NGK BP6HS plug (part number 7331), a super common standard plug used in tons of outdoor power equipment, motorcycles, ATVs, go-karts, and even some older cars. NGK is a trusted brand for a reason—their plugs are reliable, consistent, and built to last.
The BP6HS has a standard 14mm thread, a reach of about 3/4 inch, and a projected core nose design that helps with fouling resistance. It's a copper-core plug, which offers good conductivity and heat dissipation for everyday use. Whether you're replacing the plug in a lawn mower, leaf blower, generator, dirt bike, or vintage motorcycle, chances are this is the exact OEM spec plug you need.
Always check your owner's manual or old plug to confirm the correct heat range and size before ordering. Installing it is simple: just disconnect the spark plug wire, use a socket wrench to remove the old one, gap the new one if needed (most come pre-gapped), thread it in carefully by hand, then tighten to spec. A fresh NGK plug can improve fuel efficiency, smooth out idle, and make starting way easier. Keep a couple in your garage—you'll use them more than you think.
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