RAC508 Powerlite High Torque Starter Motor

The Powerlite RAC508 is a high-torque gear-reduction starter motor for Porsche 911, 912, 914, 930 and 959 models. The stated year range for the 911 is 1963–1989.

It has a 1.00 kW rating, 9 teeth, a 12 V voltage and a weight of 3.80 kg. The lightweight unit is described as providing increased cranking speed and more cranking power than original units while drawing less current from the battery.

It is a direct replacement for original units and requires no vehicle modifications. It works with positive and negative polarity, except for the Slimeline Range. The product text also describes the range as suitable for road competition applications, particularly for tuned engines and adverse conditions.