rdz19h
Champion, which is what they were built with.Champion, which is what they were built with.
Champion J6C
The Champion number it was built with.The Champion number it was built with.
Champion RDZ19H
The Jenn Feng 9295-310502 spark plug is typically used in chain saws. The champion spark plug equivalent is a RZ7C.
The one it was built with. Champion RC12LC4
For a 1970 OMC 6HP engine, the recommended spark plug is the Champion J6C or an equivalent plug
Champion Spark Plug Co. is currently owned by Federal-Mogul.
I will assume a valve-in-block engine and the answer is an RJ19LM Champion or equivalent.
The replacement part number is 753-05784. You can also use a Champion RDZ4H spark plug. The correct gap is .025 inches.
If you damaged a Champion RJ19HX spark plug, then you can indeed replace and substitute that with a Champion RJ19LM spark plug due to the similarity in their sizes.
Champion RDZ4H