This is a relatively new Continental 24 Volt ST4Starter … was installed on an IO470 for about 10 hours and then removed andstored as a backup … has the original 8130 … new, this is around $585.00 …weight is 7.6 pounds … I’m cleaning out the hanger … see the specs below:

 Continental ST4 Starter, 24 Volt,FAA-PMA Approved, by Skytec

Skytec Starter Application Information

For O-300-D through TSIO-550 engines

While the ST4 is certified for nearlyall 6-cylinder continental engines, it is ideally suited for 6-cylinder enginesthat need more cranking power w/minimal weight increase.

Only 7.6 lbs

~60-100 RPM @ 11 or 22V

Continental Starter Adapter provideskickback protection

Permanent Magnet Motor

Centrifugal clutch

Tough, strontium-fortified 356 T6Aluminum Alloy - gravitationally molded

The ST4 is the newest member of theSky-Tec Continental starter line designed to minimize weight while providingadditional torque for larger bore Continental engines. The proven centrifugalrelease clutch from the ST3 is combined with the higher torque motor of the ST5to provide a light weight, high torque, starter adapter friendly starterperfect for both 12 volt and 24 volt 470-powered aircraft.

 The ST4 merges the extremely durabilityand high torque motor of the ST5 motor combined with the proven lightweightclutch of the ST3 making it safe for all Continental starter adapters.Recommended for 12V and 24V Continental 470-series engines.