Unleaded Flap Insert (for RMD fuel cap RD2440) - RD2441. NOTE: This item is ONLY the flap restrictor insert for the RMD filler cap RD2440. ZigZag Truss. If you are purchasing or already have the filler cap RD2440 and your vehicle runs on unleaded petrol, this flap should be fitted into the filler cap to restrict the opening so unleaded fuel pump nozzles fit perfectly into the filler housing.
