Lincoln Service Parts 1 › Lincoln Electric 9SM23503 TRACTOR CONTROL HARNESS M23503 Lincoln Electric 9SM23503 TRACTOR CONTROL HARNESS M23503 Sale Price: $762.34 Original Price: $876.69 TRACTOR CONTROL HARNESS PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! TRACTOR CONTROL HARNESS PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1