Ignition wire Each wire in a Denso Spark Plug Wire Set is pre-cut to exact length so the wire sets are ready to install right out of the box. 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. Carbon impregnated fiberglass core for superior support conductivity Fiberglass braid for maximum strength Conductive silicon layer for high temperature performance and EMI/RFI noise suppression Silicon insulation for superior dielectric and heat performance Reinforcing member for added strength and terminal retention High temperature "class E" silicon jacket to withstand heat, cold, chemicals, and moisture Core reinforced with Kevlar Layer impregnated with Ferrite Wire wound layer to suppress EMI/RFI noise DENSO Warranty Information 12 month. IMPORTANT A/C COMPRESSOR WARRANTY NOTE: In order to ensure that proper warranty credit is issued if needed, the compressor installation instructions must be adhered to. All compressor defects must show proof of purchase of an Orifice Tube/Expansion Valve, Drier, and Approved A/C System Flush or a Work Order showing the purchase of these items and that the system was flushed using approved procedures.