Anyone know what the "A" in PE5R-18-110A spark plug means?

[mackworth]

I ordered some spark plugs for my cx-5 and I noticed the dealership I ordered them from online had PE5R-18-110A while some other stores have both PE5R-18-110 and PE5R-18-110A. Anyone know what the A means?

 

[ceric]

Don't know, but if I have to guess, "A" means a revised version. i.e. 110A is newer than 110.

 

[sinistriel@]

Just a supersession, its changed numbers a few times.

 

[theblooms]

Don't know, but if I have to guess, "A" means a revised version. i.e. 110A is newer than 110.

This is correct.

 

[Chocolate]

Same part, both are NGK ILKAR7L11 plugs (part number is on the spark plug) marked up at twice the price of the NGK branded plugs and packaged in a paperboard box with the Mazda logo and part number.