Champion RCJ6Y
Maybe R10 its the code production of that specific spark part number The reference number or part number is WSR6F (Bosch) BPMR7A (NGK) or WSR6F (Bosch) or W20MP-U (Denso) or RCJ7Y (Champion) are the same plug, but different brands.
Bpmr6a
Champion CJ7Y Champion RCJ6Y Autolite 2974 Bosch WSR6F Denso W22MP-U NGK BPMR7A
The correct spark plug for a Stihl 024 is an RCJ6Y (Champion), BPMR7A (NGK), or a WSR6F (Bosch). Make sure that the gap is set to 0.020 inches.
The spark plug for a Stihl FS36 is a Bosch WSR6F gapped at .025
Spark plug gap is .020 [or 0.5mm metric] Bosch plug numbers are 7547 and WSR6F [either can be used] Can be converted to Champion or NGK, etc. with an online conversion chart. T'care, Mike
Bosch 7547 or better Bosch WSR6F. Also good results with NGK BPMR6A. Gap set at .020 to .025 for hot spark.
Z9y
NGK BP7ES, Bosch W7DC, Champion N9YC
The Ariens snow blower model 21547400 typically uses the NGK BPR5ES spark plug as a cross reference. However, you may also find compatibility with other brands, such as Champion RJ19LM or Bosch WSR6F. Always consult your owner's manual or a local dealer for the most accurate and specific recommendations for your snow blower model.
0.32 with Bosch, Ngk , Champion , Autolite 0.28 with Denso
The NGK BPM8Y spark plug can be cross-referenced to Bosch equivalents, specifically the Bosch WSR6F or WSR6C models. Both Bosch options are designed for similar applications and specifications, but it's essential to verify compatibility with your specific engine requirements. Always check the heat range and electrode design to ensure optimal performance.