To discover exactly which parts you require use the on-line schematic exploded diagram - it will even give you some idea of where and how to fit those new parts.
Access forty schematic parts-list fiches for DT50R 2003 1D41 ENGLAND 1B1D4-351F5.
With these DT50R 2003 1D41 ENGLAND 1B1D4-351F5 partsfiches you have access to five hundred ninety-six spares.