How do you read Champion spark plug numbers?
CHAMPION SPARK PLUGS DECODED
- [V] Shell Design - This refers to the thread size and reach of the spark plug.
-  Heat Range - The middle number indicates the heat range of the spark plug, the higher the number the hotter the heat range.
Also to know is, what is the NGK equivalent to a champion RC12YC?
The NGK I stock as an equivalent to the RC12YC is the BCP(R)5ES (6130).
Thereof, how do I know what spark plug I need for my lawn mower?
Spark plugs are typically located on the back or side of a lawn mower engine. Look for a short wire that's about 1/4-in. -thick leading to the top of a short, cylindrical protrusion from the engine. If you're not sure where the spark plug is, consult your owner's manual.
What is the difference between rc12yc and rc14yc spark plug?
What is the difference between rc12yc and rc14yc spark plug? 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.The letter “Y” indicates a V-grooved center electrode. The number after the – indicates the recommended spark plug gap in tenths of a millimeter.Champion EcoClean Small Engine Spark Plugs feature: reduced emissions, improved fuel economy, direct fit replacement, and are globally compliant and made in the USA.RC12YC Spark Plugs
|Center Electrode||Copper Core|
|Fits||BRIGGS & STRATTON GAS ENGINES -- Intek, Vanguard single cylinder OHV KOHLER GAS ENGINES -- Command OHV, K series, 16.0/TH16, 18.0/TH18|