farmall h wiring harness | eBay Save farmall h wiring harness to get e-mail alerts and updates on your eBay Feed. + Farmall H Main Wiring Harness In Cloth - Ser# 391358 & Above - IH# 358161R91. Brand New. $60. Buy It Now. Free Shipping. IH Farmall 12 Volt Wiring Harness Single 1 Wire Alternator H 300 350 M 400 450. Wiring Harness Farmall H - Steiner Tractor Parts Wiring Harness Farmall H found in: Wiring Harness Kit (for tractors with 1 wire alternator), Wiring Harness Kit For Tractors Using 4 Terminal Voltage Regulator, Wiring Harness Kit for tractors with 3 terminal cut-out relay, 6 to.