85 mm sealing cap for H4 bulb

To make a headlight waterproof, make sure the seals are in good condition and replace them if necessary. If the original cover cannot be reinstalled after installing LED or xenon bulbs, use a suitable rubber sealing cover to protect the headlight from moisture and dust.

A headlight dust cover, also called a sealing cover or sealing cap, is essential to protect your headlights against moisture, dust, and other contaminants. It plays a crucial role in maintaining the performance and longevity of your lighting systems.

You especially need it in the following situations:

• LED or xenon bulb installation : These bulbs may require more space at the rear of the headlight, making it impossible to reinstall the original cover. A suitable dust cover will fill this extra space while ensuring perfect sealing.
• Damaged or missing original cover : If the existing dust cover is worn, cracked, or missing, it is important to replace it to avoid water and dust ingress that could damage the internal components of the headlight.
• Difficult driving conditions : If you frequently drive in dusty, humid, or muddy environments, an additional dust cover will reinforce the protection of your headlights.

In summary, using a headlight dust cover is highly recommended to maintain the efficiency and durability of your headlights. It provides protection against external elements and contributes to the overall safety of your vehicle by ensuring optimal lighting.