What do the letters mean on Champion spark plugs?

What do the letters mean on Champion spark plugs?

The letters refer to the center electrode material, projection dimension and ground material.

What do the numbers mean on a NGK Spark Plug?

heat rating
The heat rating of each NGK spark plug is indicated by a number; lower numbers indicate a hotter type, higher numbers indicate a colder type.

What is the difference between BPR6ES and BR6ES?

Both plugs are in the same heat range and the same size. The BR6ES has a resistor, the BP6ES doesn’t. Both are still available, and the BR6ES has not superseded the BP6ES.

Does champion 71eco replace RC12YC?

Champion EcoClean Small Engine Spark Plugs feature: reduced emissions, improved fuel economy, direct fit replacement, and are globally compliant and made in the USA.

Is spark plug RC12YX the same as RC12YC?

We can find no cross reference for RC12YX to any NGK number, but RC12YC does cross to NGK BCPR5ES .

How do you read a NGK Spark Plug code?

The first letter of the NGK spark plug code (in this case a “D”) indicates the thread size of the spark plug. There are three spark plug thread sizes currently being used in motorcycles and ATVs. “B” indicates a 14 mm x 1.25 pitch size, “D” indicates a 12 mm x 1.25 size and “C” indicates a 10 mm x 1.0 size.

What do the numbers mean on a AC Delco spark plug?

Numbering: · 1st number denotes thread size. · 2nd number denotes heat range. In the early 1990s, an all-numeric, identification code was developed to ensure that the proper spark plug would be selected for replacement in specific engine applications.

Are NGK Spark Plugs pre-gapped?

While most NGK spark plugs are pre-gapped, there are occasions when the gap requires adjustment. Care must be taken to avoid bending or breaking off the fine-wire electrodes. If the gap must be adjusted, use a tool that only moves the ground electrode and does not pry between or against the electrodes.

Why use a hotter or colder spark plug?

The term colder plug and hotter plug refers to how fast or slow the plugs transfers the heat from the tip. A colder plug transfers heat faster while a hotter plug is slower. This temperature range is cool enough to prevent knock and not melt the plug tip, but still hot enough to burn off the carbon and prevent fouling.