Reference OE/OEM Number 4 LUCAS DRB893C, MAGNETI MARELLI 071377402010. Reference OE/OEM Number 6 MOTORCRAFT EDR210, SEAT 030 905 225C, SKODA 030 905 225C. Compatible with a wide range of petrol engines, the rotor arm is a standard maintenance part for vehicles with traditional distributor-based ignition systems.