This wiring system is designed especially for the WD/WD45 model Tractors, and for those who already have a Delco 10 SI Alternator. This kit comes with all new switches, Voltmeter, hardware packets, wiring instructions, and of coarse all new wiring for throughout the Tractor.  One gauge heavier wire coupled to our 3 wire charging system rids voltage drop throughout the system and keeps the Battery "full" at the end of the day. We'll supply the kit, you supply the Alternator. 
 
NOTE: We also offer our optional Alternator Frame Rail Mounting Bracket Kit P/N 1515-04 for those who do not want to fab their own.