Autolite Xtreme performance Spark plugs

[13Devils]

Its one box with 4 spark plugs they are iridium tip .6mm fine wire
thes plugs are for N/A engines, heat range 10 which is hot
price $80.00
contact # 5389674

check here for applicationhttp://www.autolitecatalog.com/PartDetailWindow.aspx?b=A&pn=XP3923
popular car which these plugs is good for: corolla Gt


Shot at 2010-07-27


Shot at 2010-07-27


Shot at 2010-07-27

[Luvnish]

Heat range of 10 according to NGK standards is very cold.

[13Devils]

Heat range of 10 according to NGK standards is very cold.

yea but thats what it say if you just CrossRef the part# but when you go to the ngk site they say autolite numbers there plugs opposite to ngk

The heat range numbers used by spark plug manufacturers are not universal, by that we mean, a 10 heat range in Champion is not the same as a 10 heat range in NGK. Some manufacturers numbering systems are opposite the other, for domestic manufacturers(Champion, Autolite), the higher the number, the hotter the plug. For NGK, the higher the number, the colder the plug.

check the link to read actual statement
http://www.ngk.com/charglossary.asp?kw=Heat+range

[MAZGT]

It might be me, but i am not seeing the 20valve engine in the list of applications?