NGK BR6HS 3922 Spark Plug – Classic Replacement For Honda, Kawasaki & More (Flat Seat, 14mm)

Got an older bike or small engine?

This NGK BR6HS (part #3922) is a solid, no-nonsense spark plug that’s been a go-to for decades.

It’s built in Japan with a nickel alloy electrode and a flat seat design.

The thread is M14x1.25 with a 12.7mm reach, and the hex size is 21mm.

It’s got a 1mm electrode gap and a 5k ohm suppressor—so you get a clean burn without radio noise.

The SAE terminal screws off if you need a different connector.

Fits a ton of classics: Honda, Kawasaki, Yamaha, Suzuki, even some Lexus and Daihatsu applications.

If your machine calls for a BR6HS or 3922, this is the one.

Yellow box, genuine NGK.