Lightweight Sky-Tec starters are known for their long life & rugged reliability, due to a modern electro-mechanical solenoid engagement system that makes trouble-prone Bendix drives obsolete. By combining powerful starter motors with gear reduction, higher torque & up to twice the RPMs of OEM starters are generated, allowing them to start the largest hi-compression engines. FAA-PMA approved. 2 yr mfg warranty. More than 20 different models are available please call for correct aircraft application, or visit www.skytecair.com/fitguide.htm The C12ST2 is used for aircraft with push button or mag switch start. For Continental C85-12, C90, C145, O- 300A, B, C engines. Wt: 9.2 lbs. 12V