Lincoln Service Parts 1 › Lincoln Electric 9SM17669-2 TACH SENSOR M17669-2 Lincoln Electric 9SM17669-2 TACH SENSOR M17669-2 Sale Price: $13.50 Original Price: $15.52 TACH SENSOR PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! TACH SENSOR PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1