Features:Preventing over charging battery and improve charging capability. Designed with heat sink fins for better cooling, long service life. Solid-state electronic component, help to dissipate excess voltage. Original standard, perfectly match to the original motorcycle. Easy to install, just plug and play, no instructions required. Compatible for Kawasaki EN400 EN500 EL250 EL252 Z750 EX400. Specification:Condition: 100% Brand NewMaterial: Aluminum AlloyColor: BlackSize: 75 * 55 * 30mm/3.0 * 2.2 * 1.2inCable Length: 190mm/7.5inPackage Weight: approx.197g/6.9ozFitment:for Kawasaki EL250 (ELIMINATOR 250) 1987-1998for Kawasaki EL252 (ER250-F2F3F4F5F6) 1996-2003for Kawasaki EN500 (Vulcan 500 LTD) 1996-2009for Kawasaki EN400 1989-1994for Kawasaki EN450 (454LTD) 1985-1990for Kawasaki KLE400 1991-1999for Kawasaki KLE500 1991-2007for Kawasaki EX250 (GPX250) 1988for Kawasaki EN400 (EN400 TWIN) 1989for Kawasaki EX400 (EX-4) 1994-1995for Kawasaki Z550 (GT550) 1983-1994for Kawasaki Z750 (GT750) 1992-1994for Kawasaki ZX400 (ZZR400) 1990-1992for Kawasaki EX250 (GPX250R) 1988-1995for Kawasaki EX250 (ZZR250) 1990-2007for Kawasaki EX500 (ZZ-R500) 2006-2009for Kawasaki ZX500 (ZZ-R500) 1990-1992for Kawasaki EN400 (Vulcan 400) 1990-1993for Kawasaki EN500 (Vulcan 500) 1990-1996for Kawasaki ZR400 (ZEPHYR) 1994-2008for Kawasaki EX500 (GPZ500S) 1987-2005for Kawasaki ER500 (ER-5) 1997-2005for Kawasaki EX250 (NINJA 250) 1986-2007for Kawasaki EX400 (GPZ400S) 1990Package list:1 * Motorcycle Regulator Rectifier