Part Number: DYNA-409RD Fitment: for Harley-davidson Dyna FXD 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010-2017 for Harley-davidson Softail 1999-2010 2011 2012 2013 2014 2015 2016 2017 Normally fit for like factory location on cylinder for Harley-Davidson or Big-Twin which has the coil mounted on the seat post. Please confirm make/model/year and size of the spark plug before purchase Specification: Material: Rubber Color: Red Short Pre-crimped Length: 24cm / 9.45 Long Pre-crimped Length: 53cm / 20.87 Package Includes: 2x Spark plug wire pre-crimped Feature: Come with 10.4mm 10mm rubber ends, black 90 degree and straight boots for pre-crimped. Adopted with silicone material for whole jacket, insulation and core to bear high-temperature. Replace the old or damaged wire to prolong the service time of the engine and reduce fuel waste. This is available for street or race applications, a replacement for wire, relocation kits, new look, bobbers, scramblers, cafe racer etc. This is a non-OEM product, accessory only