Order Includes: 1x Regulator Rectifier. Compatible with Mercury Force models: 40 40HP EL ELPT 2-Stroke 1996 1997 1998 1999. Part Numbers: 883071A1, 883071A, 883071T, 815279-4, 817411-1. Note: The black wire is ground and your original regulator may not have it.. We strongly suggest comparing the posted picture to the unit(s) that needs to be replaced..
