Rolls-Royce Silver Wraith Silver Cloud Bentley S1 Rotor Arm RD8550

Part number RD8550 is the genuine rotor arm for 1946-1959 Rolls-Royce and Bentley cars equipped with a 6-cylinder engine. It is the large, original-style rotor arm designed for the Delco distributor.

The rotor arm is a key component within the distributor ignition system, transferring the ignition signal to the appropriate distributor terminal. Correct rotor arm operation helps maintain reliable ignition performance.

RD8550 provides the original-style rotor arm configuration for the specified post-war 6-cylinder applications. It is designed to work with the Delco distributor used on these vehicles.

A worn or damaged rotor arm can affect ignition operation and engine performance. Replacing the rotor arm can help maintain consistent distributor function and reliable ignition delivery.

Please verify the part number and 6-cylinder Delco distributor application before ordering to ensure correct fitment. Professional installation is recommended when servicing ignition system components.