Mercury - Quicksilver 813715A1 Ignition Wire Kit 9-Inch Plug Wire Mercury & Mariner Outboards 813715A1. Overview. A clean, steady spark starts with a strong connection. The Quicksilver 813715A1 Ignition Wire Kit restores reliable spark transfer between your coil and spark plug - helping your outboard fire up fast, run smoother, and stay dependable trip after trip.. This 9-inch OEM ignition wire is built for Mercury and Mariner outboards, designed to handle heat, vibration, and moisture without l