Explorer Sport Mustang Ranger B4000 4.0L SOHC 01-10 Blue Platinum Class Laser Mag Wire Set 29231 Superior construction for excellent conductivity, high temperature performance, EMI/RFI noise suppression, and durability. Designed to meet or exceed OEM specifications Conductor meets SAE J2031 specifications. Custom fit and specifically manufactured for the vehicle listed. To insure high quality; the wire set is made in the USA.