Spark plug Bosch WSR6F fits Stihl 070 090 AV Contra 070AV new version
Description
Spark plug Bosch WSR6F fits Stihl 070 090 AV Contra 070AV new version
AF19 mm width across flats
Suitable only if the installed spark plug has a 19 mm WAF.
If the installed spark plug has a 21 mm WAF, then you need the item n° 56401AR2319.
The central electrode of the Bosch spark plugs is made of nickel alloy with a copper core, which allows a better resistance to wear. The copper core has a very good thermal conductivity which protects against any overload.
This spark plug is recommended by the manufacturer.