Newly Improved with internal, self-resetting Kickback Protection System! Now stronger and even more durable thanks to an improved strontium fortified aluminum alloy and beefed-up mount castings. Still one of the lightest Lycoming starters available at only 8.5 lbs. Spins twices as fast as most Heavyweight OEM starters. Zero maintenance - no pins to replace in the event of a kickback. FAA-PMA approved for most Lycoming engines. Also available specifically configured to directly replace costly B&C starters on Robinson helicopters. Some airframe applications may require minor modification for best fit. Confirm aircraft fit, ring gear tooth count and voltage before ordereing. Generous 2-Year factory warranty.