MTD 732-04197 Spring Extension .68 OD x 5.00 LG MTD original equipment part 90-day warranty for defects in material or workmanship Replaces 618-0307C, 918-0551, 618-0386, 618-0551A, 618-0551, 618-0307B, 618-0307A, 618-0307D, 618-0307 and 918-0307A