Lincoln Service Parts 2 › Lincoln Electric 9SS21400-41 RATING PLATE (ALT FREQ 2) S21400-41 Lincoln Electric 9SS21400-41 RATING PLATE (ALT FREQ 2) S21400-41 Sale Price: $45.12 Original Price: $51.89 RATING PLATE (ALT FREQ 2) PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! RATING PLATE (ALT FREQ 2) PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1