Description
Fuse box for MAXI fuses for Citroën C8, Jumpy II and Peugeot 807, Expert II and Fiat Scudo.
High-current maxi fuse box designed for Stellantis group vans and MPVs, this unit houses the large-format protective fuses that safeguard primary power circuits. It is commonly fitted in the engine bay or near the battery area on Citroën C8, Jumpy II, Peugeot 807, Expert II and Fiat Scudo models. The assembly simplifies replacement of blown maxi fuses and provides a central point for high-amperage circuit protection, such as starter, alternator, main power supply and auxiliary systems.
Technical Information
- Manufacturer: Stellantis
- Model: Citroën C8; Citroën Jumpy II; Peugeot 807; Peugeot Expert II; Fiat Scudo
- Product Codes: 1400550780
- Other Numbers: N/A
Features And Function
The maxi fuse box secures and distributes high current to vehicle subsystems. It holds one or more maxi fuses (large blade-type fuses) which protect major circuits against overcurrent. A correctly functioning maxi fuse box ensures reliable power delivery to starter motors, alternators, main wiring looms and high-load accessories while enabling fast replacement of blown fuses.
Compatibility And Identification
Searches for the part are frequently performed using the product code 1400550780 or by vehicle model. Confirm fitment by comparing the connector layout and mounting points with the original unit. The part is matched to Citroën C8, Jumpy II, Peugeot 807, Expert II and Fiat Scudo as listed above.
Installation Recommendations
- Disconnect Negative Battery Terminal Before Work: Always isolate the battery to avoid short circuits and risk of injury.
- Access: Remove any plastic covers or trim in the engine bay or battery compartment to reach the fuse box. Keep fasteners and clips organized for reassembly.
- Disconnect Connectors Carefully: Release locking tabs and pull straight to avoid damaging terminals. Inspect connectors for corrosion or melted plastic.
- Replace Unit And Fuses As Required: Fit the new fuse box in the original position, reconnect all harnesses and refit covers. Replace maxi fuses only with the correct amperage specified for the circuit—never substitute a higher-rated fuse to avoid wiring damage.
- Final Checks: Reconnect the battery, verify charging and starter circuits, and check for warning lamps or electrical faults. Ensure all fastenings are secure and that no wiring is trapped or strained.
Why This Part Fails Most Often
Failures are typically caused by one or more of the following: water ingress and corrosion on terminals, overheating due to loose or high-resistance connections, physical damage from impacts, or repeated high-current events that degrade fuse clips and contacts. Poorly seated fuses or contaminated connectors increase contact resistance and lead to local heating and eventual failure. Regular inspection for corrosion and secure mounting reduces the risk of unexpected loss of power.
Practical Tips For Mechanics And DIYers
- When replacing, compare the pinout and mounting points to the original unit to ensure correct fitment.
- Clean terminals and apply suitable electrical contact protector if required to prevent future corrosion.
- Document fuse ratings before removal to restore the original protection scheme exactly.
- Keep the product code 1400550780 handy in parts searches and order references to speed up procurement.
This maxi fuse box is an essential spare for professional workshops and experienced DIY mechanics who service Citroën, Peugeot and Fiat commercial vehicles and MPVs. Correct installation and attention to connector condition will restore reliable high-current protection and prevent repeat faults.
