Champion rc12yc, Briggs 491055 or Champion Premium plug (platinum) #3071
GAP .030"
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Rc12yc
The spark plug that replaces the 794-00055A is typically the Champion RC12YC. When replacing spark plugs, it's essential to verify compatibility with your specific engine model and check the manufacturer's recommendations to ensure proper performance. Always consult your owner's manual or a professional if you're unsure.
A champion RC12YC spark plug is 14mm thread diameter. The torque for this size is 18-22 foot-pounds (25 to 30Neuton·meters)
The RC14YC in a hotter plug.
I"ve been trying to find an answer to this question myself and belive the Autolite 3924 corresponds to the Champion RC12YC.24-7423 - Champion RC12YC Spark PlugRC12YC Champion Replaces Autolite 3924, NGK BCPR6ES..
RC12YC in Champion
.035"
Champion 3071
Rc12yc