This Dual OBA wiring harness is custom designed to work with VIAIR. The Pre-assembled universal harness requires minimal cutting or crimping and features a high-quality TXL Automotive wiring designed for high-stress automotive use. (2) 35A Micro Relays w/ Stackable Base abd Terminals – Mini ANL Fuse Holder with Solid Brass Connectors & (1) 80A fuse – Rocker Switch 4-PIN 35A w/ LED Light Indicator – FLEXO F6 Split Braid (12ft) – TXL Automotive grade Wire SAE J1128, Heat/Flame Resisitant. (12ft) – Non-Insulated Terminal Rings for Exceptional Connections.