Description
Fuse box for MAXI fuses for Citroën C8, Jumpy II, Peugeot 807, Expert II and Fiat Scudo
This engine compartment fuse box is designed to accept MAXI fuses and is compatible with a range of Stellantis light commercial and passenger vehicles. Suitable for professional workshops and DIY mechanics, this replacement unit restores reliable power distribution to high-current circuits such as the alternator, starter, ABS and main engine electrics. The item is commonly searched and ordered under the part number 1400550780 — include this code when looking up fitment or comparing spares.
Technical information
- Manufacturer: Stellantis
- Model: Citroën C8; Citroën Jumpy II; Peugeot 807; Peugeot Expert II; Fiat Scudo
- Product Codes: 1400550780
- Other Numbers: Not Specified
Installation recommendations
Before starting work, isolate the vehicle electrical system by disconnecting the negative battery terminal. Locate the fuse box in the engine bay (typically near the battery or inner wing). Remove the protective cover and any securing fasteners. Carefully unplug wiring harness connectors — note the locking tabs to avoid damage. Replace the unit, ensure all connectors click into place and secure mounts to factory torque values where applicable. Reinstall the cover and reconnect the battery. After installation, verify charging system and key high-current consumers (starter, ABS, ECU) for correct operation and check relevant fault codes with a scan tool.
Why this part fails most often
Common causes of fuse box failure include water ingress and corrosion of terminals, thermal stress from high-current loads, vibration fatigue on connector pins or housing, and damage from short circuits or poor fusing. Over time, heat cycles can loosen contacts leading to intermittent power loss or increased resistance. Regular inspection for corrosion, secure mounting and correct fuse ratings reduces the risk of premature failure.
Recommended best practices: when replacing this unit, inspect related wiring and fuses for damage, clean corroded terminals or replace connectors if necessary, and protect exposed contacts with appropriate dielectric grease. Using the correct MAXI fuse ratings for each circuit is essential to prevent repeat failures.
