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.
