Lincoln Service Parts 1 › Lincoln Electric 9SM26313-1A O2 SENSOR EXTENSION M26313-1A Lincoln Electric 9SM26313-1A O2 SENSOR EXTENSION M26313-1A Sale Price: $114.91 Original Price: $132.15 O2 SENSOR EXTENSION PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! O2 SENSOR EXTENSION PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1