Direct replacement left front (driver side) wiper motor designed for Citroën C4 Picasso and C4 Grand Picasso models produced up to 2013. This unit is commonly searched by OE numbers and aftermarket codes, so technicians and DIY enthusiasts often locate it by part number 9687621780 or reference codes 6405NH / 6405KT / 6405PH. Intended for use in the front wiper mechanism, the motor drives the linkage that controls wipe strokes and park position of the driver-side wiper arm.

Key Benefits

• Direct fit for Citroën C4 Picasso / C4 Grand Picasso (pre-2013) — simplifies replacement in workshops and home garages.
• Compatible with common OE and catalog search numbers (9687621780, 6405NH, 6405KT, 6405PH) — useful for quick parts lookup.
• Restores proper wiper function: smooth wiping, correct park position and reliable intermittent operation when combined with vehicle electronics.

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot)
• Model: Citroën C4 Picasso, Citroën C4 Grand Picasso (Left Front, Up To 2013)
• Product Codes: 9687621780, 6405NH
• Other Numbers: 6405KT, 6405PH

Compatibility And Fitment

Fits Citroën C4 Picasso and C4 Grand Picasso models produced up to 2013 for the left front (driver) wiper. When searching, use the OE number 9687621780 or alternative codes 6405NH / 6405KT / 6405PH to find matching units and cross-references.

Replacement And Installation Recommendations

• Safety First: Disconnect the vehicle battery before starting work to prevent short circuits and unintended wiper movement.
• Removal Steps (overview): Remove wiper arms, detach the cowl or wiper cover, disconnect the electrical connector, unbolt the wiper motor/linkage assembly, and separate the motor from the linkage if necessary.
• Installation Steps (overview): Mount the motor, reconnect the linkage and electrical connector, reassemble the cowl and wiper arms. Ensure the wiper motor and linkage are set to the correct park position before final tightening.
• Adjustment Tip: Verify correct park position and smooth travel through a full wipe cycle. If park position is off, recheck linkage alignment and motor indexing before final assembly.
• Workshop Advice: Use appropriate tools and replacement fasteners if original bolts or clips are corroded. Inspect linkage joints and bushings and replace if excessively worn.

Why This Part Commonly Fails

• Water Ingress And Corrosion: Moisture can enter the motor or connector leading to electrical faults and corrosion of terminals.
• Mechanical Wear: Brushes, commutator, or internal gears can wear over time, especially in older, frequently used vehicles.
• Frozen Or Jammed Wipers: Operating the wipers on a frozen windshield or with heavy ice increases load and can damage motor gears or linkage.
• Connector Or Wiring Issues: Corroded or loose electrical connections cause intermittent operation or complete failure.

Practical Tips For Mechanics And DIYers

• When replacing the motor, always check the condition of the entire wiper linkage and bushes — a new motor on a worn linkage may fail prematurely.
• Search by OE numbers (9687621780, 6405NH) for the fastest match. Keep original part number handy when ordering.
• After installation, run several full wipe cycles and test all wipe speeds and park function to confirm correct operation.

Warranty And Quality Notes

Part condition and origin may vary by supplier. Inspect the unit and connectors at installation and ensure proper protection against moisture and contaminants to maximize service life.

Description

High-quality electric right front wiper motor designed as a direct replacement for Citroën C4 Picasso and C4 Grand Picasso models produced up to 2013. This motor drives the passenger-side windshield wiper arm and restores reliable wiping performance when the original unit fails. Ideal for professional workshops and experienced DIY mechanics looking for a straightforward OE-replacement part. Including common OEM reference numbers in the product listing increases findability in search and speeds up correct selection.

Technical Information

• Manufacturer: Citroën (Stellantis)
• Model: Citroën C4 Picasso, C4 Grand Picasso (up to 2013)
• Product Codes: 9687622080, 6405NG
• Additional Numbers: 6405PG, 6405KS, 6405PH, 6405pcs

Fitment And Compatibility

Designed for the right/front passenger-side wiper on Citroën C4 Picasso and C4 Grand Picasso models manufactured until 2013. This unit matches common OEM mounting points and electrical connectors used on the listed vehicles. Search by OE number (for example 9687622080) is a common way technicians and DIY customers locate this part.

Installation Recommendations

• Disconnect the battery before starting work to prevent accidental activation and protect vehicle electronics.
• Mark the wiper arm position on the glass or note its resting position, then remove the wiper arm(s) to access the motor and linkage.
• Remove the cowl/plastic trim to expose the motor assembly. Keep fasteners and clips organized.
• Unplug the electrical connector and remove the motor mounting bolts. Depending on design, you may need to separate the motor from the linkage or replace the complete assembly.
• Transfer any required link arms or spacer parts to the new motor if they are not included, ensuring correct alignment before final tightening.
• Reassemble in reverse order, reconnect the battery and test the wiper park position and full sweep before refitting the cowl and wiper arm. Adjust wiper arm position if necessary.
• If unsure about disassembly of the linkage or electrical checks, have the replacement performed by a professional with appropriate tools.

Common Failure Causes

• Water ingress and corrosion leading to electrical short or seized internal components.
• Worn carbon brushes or commutator wear in the motor reducing torque or causing intermittent operation.
• Mechanical wear of gearbox gears or linkage joints producing play or complete loss of movement.
• Frozen or obstructed wiper blades that overload and accelerate motor failure.
• Corroded or damaged electrical connector and wiring causing poor contact or open circuits.

Why Replace The Wiper Motor?

A faulty wiper motor compromises driver visibility in rain and snow and must be replaced promptly. Installing a correct-fit replacement motor restores reliable operation, reduces noise and prevents uneven or incomplete wiping. For best results, inspect the entire wiper linkage and water seals when replacing the motor to avoid repeating the failure.

Additional Notes

Always use the OE/reference numbers listed above when searching for the correct part. Professional installation is recommended if access to the linkage or electrical diagnosis is required.

Reliable replacement right front wiper motor designed for Citroën C4 Picasso models (including Grand Picasso) up to 2013. Ideal for professional workshops and DIY mechanics looking to restore proper windscreen wiping performance. Compatible with OE references such as 9682484780 and 6405KS (also referenced as 6405NG, 6405PG, 6405PH), this motor delivers the torque and park function required for consistent, quiet operation.

Features And Benefits

• Direct Fit: Designed to match the factory mounting points and electrical connector for a straightforward replacement on the passenger side.
• Reliable Wet-Weather Performance: Provides stable torque to clear the windshield in heavy rain and at highway speeds.
• OE Reference Numbers Included: Helps technicians and DIYers find the correct part quickly using common catalog numbers (9682484780, 6405KS, 6405NG, 6405PG, 6405PH).
• Improved Safety: Restores proper wiper function to maintain driver visibility and comply with road safety expectations.

Compatibility

Fits Citroën C4 Picasso and Citroën C4 Grand Picasso passenger-side front wiper assemblies. Applicable for models produced up to 2013. Check the listed product codes to confirm fitment.

Installation Recommendations

Follow these general steps for replacement. If unsure, have the job done by a professional:

1. Disconnect The Battery: For safety and to avoid electrical damage, disconnect the negative battery terminal before beginning work.
2. Remove Wiper Arms: Mark or note the parked position, then remove the wiper arms from their splined shafts.
3. Remove Cowl/Trim: Carefully remove the windshield cowl or plastic trim to access the motor and linkage.
4. Disconnect Electrical Connector: Unplug the motor connector and any retaining clips.
5. Unbolt The Motor: Remove mounting bolts, detach the motor from the linkage, and remove the unit.
6. Transfer Or Replace Linkage: If reusing the original linkage, transfer it to the new motor and ensure proper engagement of splines and joints.
7. Reassemble And Test: Reinstall components in reverse order, reconnect the battery, then test wiper operation and park position. Adjust wiper arm angles if necessary to ensure correct resting position.

Recommended Tools: Socket set, Torx bits where applicable, trim pry tools, torque wrench for final fasteners. Always follow manufacturer service procedures when available.

Common Failure Reasons

• Electrical Wear: Worn motor brushes or internal commutator wear over time causing intermittent operation or complete failure.
• Water Ingress And Corrosion: Moisture penetration at the motor or connector can corrode terminals and damage internal components.
• Mechanical Load: Damaged or seized linkage, frozen wipers, or excessive snow/ice load increases motor strain and accelerates failure.
• Connector Problems: Loose, corroded, or broken connector pins interrupt power supply and signal to the motor.

Technical Information

• Manufacturer: Stellantis / Citroën
• Model: Citroën C4 Picasso; Citroën C4 Grand Picasso (Passenger Side) – Up To 2013
• Product Codes: 9682484780 | 6405NG | 6405PG | 6405KS | 6405PH
• Other Numbers: 6405PCS

Additional Advice

After installation, verify correct wipe sweep and parking position across all switch settings (intermittent, normal, and fast). Avoid operating wipers on a dry windshield or when frozen to prevent premature wear. Periodic inspection of the linkage and electrical connector can extend service life and prevent roadside failures.

Product Overview

This replacement left front wiper motor is designed for Citroën C4 Picasso and C4 Grand Picasso models produced up to 2013. It operates the driver-side windshield wiper, providing reliable wipe and park functions. The part is commonly searched by OE numbers and manufacturer codes, making it easy to find for mechanics and DIY enthusiasts looking for a direct-fit solution.

Features And Benefits

• Direct Replacement For Original Equipment—Fits Driver-Side (Left) Front Wiper.
• OE And Interchange Part Numbers Included For Quick Identification And Searchability.
• Robust Electric Motor Suitable For Standard Urban And Highway Use.
• Designed To Restore Proper Wiper Park Position And Smooth Wiping Motion.
• Ideal For Professional Workshops And Experienced DIY Repairers.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Citroën C4 Picasso, Citroën C4 Grand Picasso
• Product Codes: 9682484680, 6405NH, 6405KT, 6405PH
• Other Numbers: 6405KT | 6405NH | 6405PH | 9682484680
• Position: Left Front (Driver’s Side)
• Fitment Years: Up To 2013

Installation Recommendations

Follow these steps to replace the wiper motor safely and ensure correct operation:

• Park The Vehicle On A Level Surface And Switch Off The Ignition.
• Remove Wiper Arms From Their Spline Mounts (Mark Position If Needed).
• Remove The Cowl/Scuttle Panel To Access The Wiper Motor Assembly.
• Disconnect The Electrical Connector And Unbolt The Motor From The Linkage.
• Detach The Motor From The Wiper Linkage; Replace With New Unit Ensuring Correct Spline Alignment.
• Tighten Fasteners According To Manufacturer Torque Specifications Where Available.
• Reconnect The Electrical Connector, Refit The Cowl And Wiper Arms, Then Test Wiper Operation And Park Position.
• If The Wipers Do Not Park Correctly, Recheck Mechanical Alignment And Electrical Connection.

Common Failure Reasons

• Water Ingress And Corrosion Causing Electrical Contact Problems Or Motor Seizure.
• Mechanical Wear Of Gearbox Or Bearings Leading To Noisy Operation Or Loss Of Motion.
• Stripped Splines On The Motor Output Or Wiper Arm Mount Causing Slippage.
• Connector Corrosion Or Wiring Damage Resulting In Intermittent Function.
• Heavy Or Frozen Wiper Loads Causing Premature Motor Overload.

Search Tips

This part is often located by searching OE numbers and codes: 9682484680, 6405NH, 6405KT, 6405PH. Use these references for quick identification when ordering or checking fitment.

Why Choose This Part

Well-suited for workshops and competent DIYers, this wiper motor restores reliable wiping performance and correct park position on Citroën C4 Picasso and C4 Grand Picasso models. Replacing a faulty motor is a cost-effective way to avoid poor visibility in rain and to eliminate grinding noises or erratic wiper movement.