The ALM RN9YC Spark Plug is suitable for most Honda and MacAllister lawnmowers, and many other engines.
It compares to:
Bosch: WR7DC.
Champion: N9YC, RN9YC.
Denso: LR15YC.
NGK: BP6ES, BPR6ES.
Oregon: OLR15YC.
Rocwood: F6RTC.
Torch: F6TC.
Note: ALM RN9YC is printed with ALM 9 on the spark plug.
