This high-quality rear wiper motor is a direct-fit replacement commonly used on Citroën C8 and Peugeot 807 models. It restores reliable rear-window wiping and washer operation, reducing streaking and improving rear visibility in wet conditions. Many customers search for this item by part number (for example 1400416980 or 1497791080), so the exact references are included below to help you find the correct unit quickly.

Technical Information

• Manufacturer: Valeo
• Model: Citroën C8; Peugeot 807
• Product Codes: 1400416980, 1497791080, 53028612, 6405EN
• Other Numbers: 6405EQ (Washer Grommet Reference)

Application And Fitment

Fits rear wiper assemblies on Citroën C8 and Peugeot 807 (factory models produced in the 2000s). Check the listed product codes when searching — this part is frequently referenced by its OEM numbers.

Function

The rear wiper motor converts vehicle electrical power into the mechanical motion required to sweep the rear wiper arm across the glass. It incorporates a small gear drive and output linkage that moves the wiper arm and ensures the blade parks correctly at the rest position. A secure electrical connector provides power and sometimes a park/position signal to the vehicle wiring.

Common Causes Of Failure

Typical failure modes include water ingress and corrosion of the motor housing or gearbox, worn brushes or commutator, seized or damaged output gear, deteriorated seals, and electrical faults such as poor grounding or connector corrosion. Problems often appear after many years of exposure to weather, salt and dirt, or when the wiper linkage seizes and places extra mechanical load on the motor.

Replacement Frequency

Service life varies with use and environment; many rear wiper motors remain reliable for several years, while in harsh climates or with heavy use failures may appear after around 8–12 years. Regular inspection of the wiper arm, linkage and gaiter helps spot early signs of wear or water ingress.

Installation Recommendations

Installation should be carried out by a trained technician or an experienced DIY mechanic. Typical replacement steps:

• Open the tailgate and remove the interior trim to access the motor housing.
• Remove the wiper arm (undo the retaining nut and remove the arm from the spline).
• Disconnect the electrical connector and detach any linkage or grommet around the motor output.
• Unscrew the motor mounting fasteners and remove the old motor assembly.
• Fit the new motor, secure mounting fasteners, reconnect linkage and electrical connector, and replace the washer grommet if required (ref. 6405EQ available separately).
• Test the wiper and washer function before reassembling the trim; ensure the wiper parks correctly and operates without binding.

Typical workshop time: approximately 30–60 minutes depending on vehicle access and experience. Use basic hand tools and take care with trim clips to avoid damage.

Why Mechanics Choose This Part

This Valeo unit is a widely used replacement because it matches OEM fitment and mounting points for the listed models and is often cross-referenced by several part numbers, making identification straightforward for both professional workshops and DIYers searching by reference.

Product Overview

This rear wiper water grommet is designed to route the washer fluid feed and seal the opening in the tailgate of Citroën C8 and Peugeot 807 models. It prevents water ingress into the tailgate cavity and protects the washer hose and rear wiper motor area from dirt and corrosion. Ideal for mechanics and DIY enthusiasts looking for a direct-replacement part referenced by common OEM numbers (e.g. 9652697880, 6405L0), this grommet restores leak-free operation of the rear washer system and helps avoid electrical and bodywork damage caused by leaking washer fluid.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model: Citroën C8; Peugeot 807
• Product Codes: 9652697880; 6405L0
• Additional Numbers: 1488958080; NFP

Compatibility And Application

Fits as the washer hose grommet/pass-through in the rear tailgate for Citroën C8 and Peugeot 807. The part seals the aperture where the washer hose passes through the tailgate sheet metal and supports the rear washer nozzle tubing to prevent chafing and leaks.

Function And Benefits

• Seals the washer hose entry point to prevent water ingress and corrosion inside the tailgate.
• Prevents washer hose chafing and mechanical wear by securing the hose in place.
• Maintains correct washer fluid routing to the rear nozzle for reliable cleaning performance.
• OEM-referenced fitment for straightforward identification and ordering by part number.

Replacement Procedure

Basic Steps (Typical For Tailgate Installations):

• Remove Tailgate Trim: Open the tailgate and carefully remove the interior trim panel to access the wiper motor and hose routing. Keep fasteners organized.
• Remove Wiper Arm/Nozzle If Necessary: Depending on access, you may need to remove the wiper arm or nozzle to free the hose and grommet area.
• Disconnect Washer Hose: Carefully detach the washer hose from the grommet/nozzle. Prepare a small drain container to catch residual fluid.
• Extract Old Grommet: Push or pry out the old grommet from the tailgate aperture. Inspect the hole for rust or deformation and clean the mating surface.
• Fit New Grommet: Lubricate the new grommet lightly with silicone grease or soapy water for easier installation, then press it into the aperture until fully seated.
• Reconnect Hose And Reassemble: Reconnect the washer hose, route it to avoid kinks, reinstall any removed components and the trim panel. Refill washer fluid if needed and test the rear washer for proper flow and sealing.

Installation Recommendations

• Use Silicone-Based Grease: A light coating of silicone grease helps install the rubber grommet without degrading the material.
• Inspect Hose And Clamps: Replace brittle or cracked hose sections and faulty clamps to prevent repeat leaks.
• Check For Corrosion: Clean and treat rust around the aperture before fitting the new grommet to ensure a durable seal.
• Test After Fitment: Operate the washer system and inspect for leaks at the grommet and along the hose routing.
• Safety Note: If Working Near Electrical Components, Isolate The Negative Battery Terminal As A Precaution.

Common Failure Modes

Rubber grommets in the rear washer system typically fail due to age-related degradation, UV exposure, and repeated mechanical stress. Common causes include:

• Rubber Hardening And Cracking From Heat And UV Exposure, Causing Leaks.
• Hose Wear Or Abrasion Against The Tailgate Edge When The Grommet Loses Its Cushioning Effect.
• Damage From Ice Or Debris, Especially In Cold Climates Where Water Can Freeze In The Hose Or Nozzle.
• Corrosion Around The Aperture That Prevents Proper Sealing.

Why Replace This Part

A failing grommet often leads to washer fluid leaking into the tailgate cavity, which can cause corrosion, impair rear wiper motor operation, and create electrical issues in connectors housed inside the tailgate. Replacing the grommet is a cost-effective preventive repair to maintain washer performance and protect bodywork and electronics.

Ordering And Identification

Search By OEM Part Numbers For Fast Identification: 9652697880, 6405L0, 1488958080. These references are commonly used by mechanics and parts catalogs for Citroën C8 and Peugeot 807 rear washer feed-through grommets.

Final Notes

Suitable For Professional Workshops And Skilled DIYers. Installing a correct-fitting grommet restores a watertight seal and prolongs the service life of rear-wiper components—important maintenance when preserving the integrity of tailgate electronics and body panels.

Product Overview

Direct-fit rear wiper motor designed for Citroën C8 and Peugeot 807 models. This robust electric motor drives the tailgate wiper arm and is identified by common OEM references 53015412, 1484603080 and 6405K9. Supplied without the washer fluid connector (reference 6405L0), which is available as a separate part. Suitable for professional garages and experienced DIYers who perform bodywork electrics and wiper mechanism repairs.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model: Citroën C8, Peugeot 807
• Product Codes: 53015412, 1484603080, 6405K9
• Other Numbers: 6405L0 (Washer Connection, Sold Separately)

Function

The rear wiper motor provides the rotational torque required to move the tailgate wiper arm across the rear glass, ensuring water and dirt are cleared for rear visibility. It interfaces with the wiper linkage and the vehicle wiring harness and is actuated via the wiper control stalk or vehicle body control module depending on model specification.

Common Failure Causes

Failures typically arise from water ingress and corrosion, worn brushes or commutator inside the motor, stripped or broken internal gears, or mechanical seizure of the linkage. Additional causes include electrical issues such as a corroded connector, intermittent supply voltage, or excessive load from a frozen/blocked wiper arm.

Replacement Guide

General replacement steps (for experienced technicians):

• Disconnect the vehicle battery before starting to avoid short circuits and protect vehicle electronics.
• Remove the interior tailgate trim to access the motor; retain all clips and screws in order.
• Mark the wiper arm position on the spline or glass to ensure correct reassembly alignment.
• Disconnect the electrical connector and unbolt the motor from the tailgate.
• Transfer any required linkage components or fastening hardware to the new motor if applicable.
• Install the new motor, reconnect the wiring, reposition the wiper arm to the marked position and test the function before reassembling the trim.

Mounting Recommendations

Always follow the vehicle manufacturer’s torque settings and reassembly procedure for tailgate panels and trim. Ensure connector contacts are clean and protected from moisture; apply dielectric grease to terminals where appropriate. After installation, verify full sweep and park position of the wiper to avoid motor overload. If the washer fluid connector (6405L0) is required, fit it and check the sealing to prevent water ingress into the motor area.

Durability and Service Life

Service life depends on usage and environmental exposure. In normal conditions, rear wiper motors can last many years, but repeated exposure to moisture, road salts and mechanical strain can shorten lifespan. Inspect linkage and seals during replacement to prevent premature failure of the new unit.

Why Buy This Part

Ideal for professional repairs and competent DIY maintenance. Using the correct OEM-referenced motor (53015412 / 1484603080 / 6405K9) ensures a precise fit and restores reliable rear wiper operation on Citroën C8 and Peugeot 807 models. Fast replacement reduces downtime and improves rear visibility and safety.

Ordering Note

Search by product codes 53015412, 1484603080 or 6405K9 to find this exact rear wiper motor. If you require the washer fluid connector, order part 6405L0 separately.

This rear wiper motor seal and washer jet pass-through is an essential sealing component used on the tailgate of Citroën C8 and Peugeot 807 models. Designed to prevent water ingress around the rear wiper motor and washer nozzle, the part is commonly searched and ordered by its reference numbers 1400371780, 6405EQ and 6405EP. Well suited for professional workshops and DIY mechanics, this replacement part helps restore reliable washer operation and protect the motor and tailgate electronics from moisture and corrosion.

Technical Information

• Manufacturer: Stellantis / Citroën Peugeot
• Model: Citroën C8, Peugeot 807
• Product Codes: 1400371780, 6405EQ, 6405EP
• Additional Numbers: 6405EP, 6405EQ (alternate references)

Function

The seal creates a watertight passage where the rear washer nozzle and its hose pass through the tailgate and interface with the wiper motor assembly. Its main function is to keep water, dirt and road salt out of the motor housing and electrical connections while allowing the washer jet hose to be routed cleanly to the rear window.

Common Failure Modes

The most frequent causes of failure are material aging and environmental damage: rubber hardening and cracking from UV exposure, deformation from repeated movement of the wiper arm, mechanical wear during service, and ingress of grit or frozen water that splits the seal. Once the seal is compromised, water can reach the motor or electrical contacts and accelerate corrosion or cause intermittent electrical faults.

Replacement And Installation Recommendations

Recommended steps for replacement (suitable for experienced mechanics and competent DIYers):

• Remove the rear wiper arm and cap to expose the retaining nut.
• Remove the tailgate interior trim to access the motor and the seal area.
• Disconnect the washer hose and electrical connector from the motor assembly.
• Remove the old seal/grommet and clean the surrounding area of dirt and corrosion.
• Fit the new seal into the tailgate hole, ensuring the sealing lip sits flush and the washer hose passes through without kinking.
• Reconnect the hose and electrical connector, refit the motor and trim, then reinstall the wiper arm and secure to the correct position.
• Verify sealing and operation by running the washer and wiper through several cycles and checking for leaks.

Practical tips: Use a silicone-based grease or appropriate rubber lubricant to ease installation and protect the seal without degrading the material. Replace any corroded fasteners or damaged hose clips. Avoid overtightening the retaining nut; tighten to the manufacturer specification when available.

When To Replace

Replace the seal if you observe water leaks into the tailgate, visible cracks or hardening of the rubber, poor washer jet alignment caused by a loose or damaged pass-through, or electrical issues in the rear wiper motor suspected to be caused by moisture. Proactive replacement can prevent motor corrosion and costly repairs.

Compatibility And Search Tips

This item is frequently searched by its reference numbers 1400371780, 6405EQ and 6405EP and fits Citroën C8 and Peugeot 807 models. When ordering, using the product codes speeds up identification in parts catalogs.