Power Back Door Modification Kit for the Peugeot 408 Crossover P54

The 408 P54 is a fastback crossover: the rear glass is steeply raked and the tailgate hinge sits further forward than on a conventional estate, which changes both the lift force required and the arc the panel follows. This modification kit accounts for that geometry with brackets machined for the P54 hinge line and actuator stroke limited so the panel clears the sloping roofline at full extension. It suits both the petrol and the hybrid versions of the model built from 2022 onward.

Product Advantages

• Auto tailgate for fastback geometry — stroke and bracket angle are matched to the P54 hinge position, so the panel opens fully without pressing against the roof spoiler.
• Electric trunk lift with matched force curve — two actuators work in sync and hold the panel steady at any intermediate position, which matters on a heavier fastback tailgate.
• Automatic trunk opener, three inputs — smart key, cabin button and the original handle switch all command the module; the factory key is left untouched.
• Soft close pull-in — the latch is drawn in electrically over the last centimetres, keeping the slanted glass seal even and reducing wind noise.
• Obstruction reversal on both strokes — a low beam, a wall or a hand stops and reverses the movement immediately.
• Height memory — the opening angle can be capped for low car parks and the setting is retained after a battery change, useful on hybrid models with frequent 12V cycling.

Specifications

Fitting Notes

The P54 rear trim is clipped with two screws behind the grab handle, the same pattern as recent Stellantis models. Brackets mount on the factory ball studs, and because the hinge sits forward of the glass, the harness route runs along the existing clip line rather than through new holes. On hybrid versions isolate the auxiliary battery first; no high-voltage component is touched. First fit is around 2 hours, a repeat fit 60-70 minutes, and the conversion is fully reversible.

Buyer Profile

Peugeot specialists and multi-brand aftermarket distributors across France, Spain, Italy, Germany, Turkey and North Africa; crossover accessory retailers; leasing and corporate fleets adding comfort options to hybrid pool cars; and mobile fitters serving private customers. The 408 is a high-visibility fastback crossover in the compact segment, so the model attracts buyers who compare options closely and respond well to powered tailgate upgrades.

Packing and Warranty

Kits are packed in a printed carton with die-cut foam, then in a five-ply export carton with corner boards; neutral packaging is available for private-label sellers. Bench testing covers 400 duty cycles, synchronous travel, obstruction reversal force and standby current. Production follows ISO 9001:2015, warranty is 24 months on actuators and 12 months on the control module, with actuators, modules and looms offered as service parts.