Description
BSM R04 DELPHI unit for Citroën Peugeot cars
It is possible to damage one of the holders – it does not affect functionality
This is a used part with a guarantee of functionality
BSM R04 DELPHI 9807028780 is an engine fuse and control box designed for Citroën and Peugeot cars. It provides power and control of a number of electrical circuits in the engine compartment (fuel pump, fans, glow plugs, relays, fuses and other components). Due to its original design, it is suitable as a replacement for a defective piece in case of power supply problems or failure of electrical functions.
Manufacturer: DELPHI
Model: BSM R04
Product codes: 9807028780
Other numbers: often also found under the designation BSM R04, possibly with minor production variations depending on the year of manufacture and engine
The part is mainly intended for selected Citroën and Peugeot models, typically from a range of commercial and family cars, such as Citroën Berlingo B9, Citroën C8, Peugeot 807 or Peugeot Partner Tepee (the specific use always depends on the engine and equipment of the car). This is a used original part from disassembly, with functional electronics. Damage to one of the plastic holders or handles may occur, but this does not affect the functionality of the unit itself or its connection.
The technical features of the part include original fuses and relays according to the specific equipment of the car, a robust connector connection and a design adapted to installation in the engine compartment. The BSM unit is a key element of the electrical installation, and therefore it is advisable to replace it in the event of symptoms such as frequent blown fuses, unstable power supply to the fuel pump, spontaneous outages of electrical appliances or oxidation of contacts in the existing cabinet.
Installation recommendations:
Before disassembling the original part, always disconnect the vehicle battery to avoid short circuits or damage to the electronics. Carefully remove the original BSM unit so as not to damage the wiring or brackets. When installing the replacement part, carefully check the cleanliness and condition of the contacts in the connectors and make sure that all harnesses are firmly and fully inserted as far as they will go. Fuses and relays must correspond to the values prescribed by the car manufacturer; before starting for the first time, check their placement according to the diagram in the vehicle. After connecting the battery, perform a basic check of the functionality of the lights, fans, fuel pump and other main circuits served by the BSM unit. For a problem-free installation, it is recommended that the installation be carried out by an experienced car mechanic who has experience with the electrical installation of Citroën and Peugeot vehicles.








