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?
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.