NGK is the leader in motorcycle spark plugs, with spark plugs for virtually every motorcycle. The Standard spark plug is considered the workhorse at the heart of smooth-running engines around the world.
- OEM approved (replaces H-D 6R12)
- Triple-gasket sealing process
- Consistent performance
- Spark plug of choice in millions of motorcycles
- Specified by more motorcycle manufacturers than any other spark plug company
- sold each
NoteFits Harley-Davidson Twin Cam 99-17 & Sportster XL Evo 86-later