Description
Right headlight washer nozzle with cap and hose for Peugeot 308 T7. Cap colour KTV – Paint Black Pearl Nera.
High-quality replacement right headlight washer nozzle complete with cap and connecting hose, designed specifically for the Peugeot 308 (T7). This direct-fit part restores proper headlight washer function, improves spray coverage and protects the washer mechanism from dirt and moisture. Ideal for professional garages and DIY enthusiasts who search parts by product number — commonly referenced as 6438Y8, 6438Z0, 6439H8 or 6433C4.
Technical Information
- Manufacturer: Stellantis (Peugeot)
- Model: Peugeot 308 (T7)
- Product Codes: 6438Y8, 6438Z0, 6439H8, 6433C4
- Other Numbers: KTV, KTVD (referenced in part listings)
- Included Parts: Washer Nozzle (Right), Protective Cap, Connecting Hose
- Cap Colour: Painted Black Pearl Nera
Fitment And Application
Designed for the right-side headlamp washer system of Peugeot 308 T7 vehicles. Matches OEM mounting points and hose connections for an accurate fit. Customers often locate this part by one of the product codes listed above — include the code in your search to speed up finding the correct item.
Replacement Procedure
- Depressurize the washer system by removing the cap from the washer reservoir and operating the washer until flow stops.
- Access the rear of the bumper or inner wheel arch to reach the headlight washer assembly (removal of wheel arch liner or partial bumper removal may be required depending on vehicle setup).
- Disconnect the washer hose from the old nozzle and remove any retaining clips or fasteners holding the nozzle/cap in place.
- Install the new nozzle with cap and route the hose to the connection — ensure secure clamping and correct orientation of the nozzle.
- Refill washer fluid if needed, bleed air from the line by operating the washer, and verify correct spray pattern and absence of leaks.
Installation Recommendations
- Work On A Cool, Clean Surface: Protect surrounding paintwork and lenses from scratches or solvent damage.
- Use Correct Tools: Small trim tools and hose pliers simplify removal of clips and connectors.
- Check Hose Condition: Replace brittle or cracked hoses and secure all clips to prevent future disconnection.
- Test After Fitment: Verify nozzle alignment and spray coverage; adjust if spray misses the headlamp lens.
- Follow Manufacturer Procedures: When removing bumper panels, follow factory guidelines to avoid breaking clips or tabs.
Most Common Failure Reasons
- Clogging From Debris: Dirt, road salt, or deposits in the washer fluid can block the nozzle or jet, reducing spray effectiveness.
- Freezing And Cracking: Water left in lines or nozzles can freeze in cold climates, causing cracks or splits.
- Impact Damage: Stones and road debris striking the nozzle or cap can break the housing or dislodge the unit.
- Wear And UV Degradation: Plastic caps and hoses harden over time, leading to leaks or poor sealing.
- Poor Hose Connections: Loose or damaged hose fittings lead to loss of pressure and erratic spray.
This replacement nozzle is a practical, cost-effective way to restore headlight cleaning performance and maintain safe night-time visibility. Search using the OEM codes for fastest identification and order processing.







