Is RC12YC same as RC14YC?
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Generac revised the “recommended plug” to this one from the RC12YC a while ago, hence it is included in their kits. Difference… the “14” is a bit hotter for easier starts, faster warm up, etc., with a larger center copper wire electrode. The 0.40 in. gap is the same for either plug…
What is equivalent to champion RC12YC?
NGK Pro-V Spark Plug BKR5E (RC12YC) fits Champion, NGK and Autolite.
What is the difference between qc12yc and rc12yc spark plugs?
Premium Member. From what I can find the two plugs have the same heat range so are interchangeable without any difference in mechanical engine performance. BUT if you have a fuel injected engine you should use the QC plug. It’s internal electrical construction is different to work properly with fuel injection systems.
Does rc12yc replace QC12YC?
Premium Member. From what I can find the two plugs have the same heat range so are interchangeable without any difference in mechanical engine performance.
What is the difference between rc12yc4 and rc14yc4 spark plugs?
The higher number is a slightly hotter spark type plug. The RC14YC4 is now the standard plug for the 990/992 Generac engines. The 999 in the new 16-22kW Evolution (7000 series) units and older 20kW units are still using the cooler RC12YC4 plugs.
What does the rc14yc4 mean?
The rest are RC14YC4’s for the 990-992cc engines. The ‘4’ is just a gap identifier for the .040 gap. What does NOT show in the comparison specs is the heat range.
Do you use Champs or rc12yc?
I have always used Champs although I have had people tell me they wouldn’t give me a nickle for a truck load of them..My current tractor uses the RC12YC and even with it burning oil I haven’t had any problems with them.
What is the gap on rc12yc champion 3071?
So far, all I can find on the 2 plugs is that # 3071 is a Platinum “Super plug” version of the standard RC12YC plug which uses Copper. Interestingly, I found the gap listed as .040″ for both plugs. I carefully checked again the gap on my Champion 3071, and it is .030 inches.