This used headlamp washer nozzle and protective cover is a direct-fit replacement designed for the left (driver’s) front headlamp of the Peugeot 307. Ideal for workshops and DIY mechanics who search by part number (6438H1 / 6438H2), the unit restores washer functionality and appearance where the original jet or cover has been damaged, clogged or lost paint. The painted cover in EZW grey matches factory finish and helps keep the washer mechanism protected from dirt and impacts.

Key Features

• Direct replacement for left front headlamp washer nozzle and cover.
• OEM Product Codes: 6438H1, 6438H2 (also referenced as EZWD/EZW).
• Painted Finish: EZW Grey (matching factory color).
• Includes both nozzle (jet) and decorative/protective cover.
• Suitable for professional garages and competent DIY installers.

Installation Recommendations

• Access: Remove or tilt the headlamp assembly or reach through the wheel arch liner to access the washer nozzle from behind, depending on vehicle phase and local bodywork layout.
• Removal: Unclip the retaining tabs, disconnect the washer hose from the nozzle, and carefully withdraw the old nozzle and cover. Keep clips if they are undamaged or replace if brittle.
• Fitting: Push the new nozzle into the housing until the retaining clips engage, reconnect the washer hose and secure the cover. Ensure the nozzle orientation matches the spray direction of the headlamp washer system.
• Testing: Operate the washer system to verify spray pattern and check for leaks at the hose connection. Adjust nozzle alignment if spray misses the headlamp lens.
• Tools: Common hand tools, trim clips pliers and a flashlight. Work on a cool vehicle and avoid forcing brittle plastic clips.

Why This Part Fails Most Often

The most common causes of failure are mechanical impact (minor collisions or stone chips), paint damage and cracking from age or UV exposure, clogging by dirt or frozen washer fluid, and breakage of the small plastic retaining clips. Freeze-thaw cycles can expand residual water and split the nozzle, while road debris and accidental contact during cleaning or body repairs frequently damage the cover.

Practical Notes for Mechanics and DIYers

• Search by Part Number: Customers and workshops often locate this part quickly using codes 6438H1 or 6438H2—include these in your order and inventory searches.
• Material Care: Clean the washer hose and filter before fitting a new nozzle to avoid immediate clogging. If the jet spray is weak after replacement, inspect the pump and hoses for blockages or air ingress.
• Appearance: The painted cover reduces visible contrast on repaired vehicles; small color variations may occur due to age and sunlight exposure on the original paint.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model: Peugeot 307 (Phase I & II)
• Product Codes: 6438H2, 6438H1, EZWD
• Other Numbers: EZW (Paint Code), 6438H1 | 6438H2

Recommendation For Replacement

Replace the nozzle and cover when spray performance is reduced, when the cover is cracked or missing, or after front-end impacts. For best results, inspect surrounding mounting clips and the washer hose for wear and replace any brittle or damaged components at the same time to ensure a long-lasting repair.

Searching by the product numbers 6438H1 and 6438H2 will help you find this exact unit quickly in catalogs and online marketplaces.