What is an ?

The spark plug is one of the first components to activate when you press the ignition switch.
The spark plug ignites the gasoline and air supplied to the combustion chamber.
Spark plug is a small device, usually made of high nickel alloy, alumina ceramic and steel wire.
The spark plug also acts as a heat exchanger.
A typical spark plug has at least eight sub components: two electrodes, an insulator tip, thread, a washer, housing, insulator and a terminal.
There are four types of spark plugs: copper, iridium, platinum and diplatinum.
The most common spark plug problem is dirty spark plug due to dirt deposition, which can happen if there is always oil on the spark plug. ......Lean more about

OEM:22401AA761 – Product Name:Spark Plug – for BMW – Replacement cost

OEM more : 12120032137 ,