Lincoln Service Parts 1 › Lincoln Electric 9SM23503-1 TRACTOR CONTROL HARNESS M23503-1 Lincoln Electric 9SM23503-1 TRACTOR CONTROL HARNESS M23503-1 Sale Price: $310.70 Original Price: $357.31 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