Ducati Energia regulator '03 on Moto Guzzi '90 on Ducati

54040131A  GU32703810  GU03703870  35 amp voltage regulator as used on most 2003 and later Moto Guzzi models with Ducati Energia brand alternators. No warning lamp function with this regulator as was the original configuration on these models. Superseding Guzzi part number is 03703870.  Can also be substituted for earlier Ducati Energia voltage regulator 37703805, but charge indicator light function is lost. Also fitting some Ducati motorcycle models from 1990 to 1999 under part number 54040131A, and Laverda models under part number 019001000078.Moto Guzzi: Breva 750, Nevada Classic 750IE, California Vintage, Bellagio, V7 Classic, V7 Cafe, 2013 V7 Stone, 2013 V7 Special, 2010-2013 V7 Racer. Also 2003 and later versions of these models: EV, Stone, Stone Touring, Aluminium, Titanium, Black Eagle, V11 LeMans, V11 Cafe Sport, Ballabio, Coppa Italia. Ducati: '98 748 Biposto, '98-'99 748 SPS, '96-'97 Monster 750, '91-'97 750 SS, '92-'95 888, '91-'98 900SS, '91-'98 900 Superlight, '90-'92 907 IE, '98 916.Cagiva: '93-'97 900 ElefantLaverda: 1995-2001 650s, 668s, 750s.