DENSO First Time Fit ignition wire sets are identical in form, fit and performance to the factory-installed wire sets. Every part of each wire set construction meets or exceed OE/OES specifications.
End caps are designed to "click" into place for easy installation and a secure fit. This allows the installer to "feel and hear" that a solid connection has been made, even when the connection is in a difficult-to-see location.
The 7 and 8mm ignition wires are SAE J2031 Class E rated, the highest quality wire used in the industry. These wires can withstand temperatures from -40? to 428? F and pass tests covering everything from electrical properties to shrinkage to chemical resistance and accelerated life testing.