"Featuring Sky-Tec’s Exclusive KPS® Kickback Protection System, Sky-Tec’s NL-series of starters fit all Lycoming powered aircraft. Unmatched duty cycle capabilities and durability on even the hardest starting 12V aircraft. Now available as factory original equipment on nearly all new Lycoming-powered airplanes. No other starter is manufactured to more exacting standards for quality, reliability and workmanship than Sky-Tec Lycoming starters. All NL-series starters are FAA-PMA certified as replacement parts for all non-geared, flat Lycoming engines. Sky-Tec NL-series starters fit without modification or 337 paperwork. At only 9.4 lbs., the NL-series is the lightest Bendix-free inline available. Generous two-year warranty."
Not an exact replacement for the original style Prestolite, had to change length of 12 volt + lead, modify units accessory ears, re route engine oil cooler bracket to clear 12 volt terminal bolt. MAYBE A NOTE INDICATING THE POSSIBLE NEED TO MODIFY SUCH THINGS SHOULD BE INCLUDED IN DESCRIPTION.
Do not use on a PA-28-140 it will put a hole in your oil cooler. If you do use this starter in that aircraft you must move the oil cooler over by at least 1/2 and make a new hole in the baffle for the oli cooler in its new position. I have had two aircraft come in with massive oil loss in flight due to the lack of clearance.