farmall 706 wiring harness | eBay Save farmall 706 wiring harness to get e-mail alerts and updates on your eBay Feed. + Items in search results. SPONSORED. Farmall 706 Diesel Tractor Wiring Harnesses for Ser#37237 & Above (6 Included) Brand New. $550. Buy It Now. Free Shipping. Tell us what you think - IHC/Farmall 706 Diesel (Up To Serial #37,236) Complete #B3024-296, Complete Wire Harness For IHC/Farmall 706 Diesel Tractors (Up to Serial #37,236) Original Design With 10DN Alternator & Deluxe Fender Lighting Truly Made To Look Exactly Like The Original With Our Premium PVC Wire & Made With The Correct Gauge, Color, Wire & Fuse Holders (If Needed), & All Terminals Are Soldered & Rubber Sealed.