MTD 918-0142C Spindle Assembly Replacement for Lawn Mowers MTD original equipment part 90-day warranty for defects in material or workmanship MTD 918-0142C Spindle Assembly 5.75" diameter Replaces Part Number 618-0142 MTD original equipment part 90-day warranty for defects in material or workmanship MTD 918-0142C Spindle Assembly. 5.75-inch diameter Replaces Part Number 618-0142