Yes
Champion stock # 71
NGK BPR6ES Champion RN9YC Champion Rn11YC4 [hotter plug fights carbon buildup
ngk Bm6a its the same plug
RN9YC or BPR6ES NGK - BPR6ES or DENSO - W16EXR or Champion - RN11YC or Bosch - WR6DC The RN11YC burns hotter and prevents carbon buildup better than the RN9YC.
Bpr6es
torch GL4RC or Champion J19LM
torch F7RTC or champion RN9YC
Champion CJ7Y Champion RCJ6Y Autolite 2974 Bosch WSR6F Denso W22MP-U NGK BPMR7A
autolite 2974 or xst2974 (irridium) champion rcj7y, cj7y ngk bpmr7a
Here is what I would say. I believe the engine is made by LTC. LTC says the suggested plug is the Torch F6RTC. If you buy the MTD plug, the plug in the package is a Torch F6RTC. LTC goes further on their web site to state the equivalents in their mind are: 1. Champion Plug: RN9YC 2. NGK Plug: BPR6ES 3. Bosch Plug: WR6DC. I am not happy with Torch. At the first winterising of my 2010 Troybilt 3090; 357cc engine I pulled the plug and it was rusty...yes rusty. I would say the MTD plug does have a black coating which may help. Anyway, I would say this is a good cross reference. However, I have not yet confirmed that the Chinese Troy Bilt motor is LTC but I would give it 95% certainty given the engines they advertise on their site. In any event they do show this plug crossing to the above listed plugs.
a ngk cr7hsa spark plug