D3S 66340 42302 Xenon HID Bulb

Factory-grade D1S HID replacement bulb engineered in Germany—restore brilliant white light output when your OEM bulbs fade or fail.

Bring Back That Crystal-Clear Factory HID Brightness

If you've owned a luxury or performance vehicle with factory HID headlights, you know the feeling: that first night drive with crisp, white light cutting through darkness like a spotlight. But HID bulbs don't last forever. After 2,000-3,000 hours of use, they start losing intensity, shifting toward yellow or purple hues, or flickering before they fail completely. Suddenly, your premium lighting system feels more like a penlight.

This D1S HID Replacement Bulb is the solution. Designed as a direct replacement for factory-installed Philips and OSRAM bulbs, it restores your headlights to their original performance—delivering that brilliant, daylight-white beam you remember. Whether your bulb has burned out completely or is just starting to show its age with color shift, this German-engineered replacement brings your lighting back to life without the dealership markup.

Key Features at a Glance

• OEM Direct Replacement: Exact fit for factory HID systems—replaces Philips 42302 and OSRAM 66340 bulbs with zero modifications.
• Made in Germany: Precision-engineered to meet strict OEM quality standards for light output, color temperature, and longevity.
• 3,000-Hour Lifespan: Designed to deliver consistent performance for years of driving under normal conditions.
• 35W Output: Factory-spec wattage ensures proper beam pattern without overheating ballasts or melting housings.
• Performance Plus Warranty: Backed by manufacturer warranty for peace of mind.

How It's Used: Installation & Fitment

Installation requires accessing your headlight assembly (process varies by vehicle—some require removing the bumper, others just the dust cap). Once you've accessed the bulb, it's a simple twist-and-lock replacement. The D1S base is keyed, so it only installs one way—eliminating guesswork. If you're experiencing issues, try swapping the bulb to the opposite side first. Sometimes what seems like a bad bulb is actually a failing ballast, and this simple test can save you time and money.

Product Durability & Material Details

German engineering means precision gas-fill ratios, electrode placement, and quartz glass construction that resists thermal stress. Unlike cheap aftermarket bulbs that burn too hot or too cool (causing color shift and premature failure), this bulb delivers consistent 4,300K color temperature—the same pure white output your vehicle had when new. The quartz envelope handles extreme temperature swings without cracking, while the arc tube maintains stable output through its entire service life.

Your Benefits at a Glance

• Restore Original Performance: Get back that factory-fresh light output and color quality without expensive dealer parts.
• Safety Through Visibility: Proper HID output dramatically improves nighttime visibility compared to faded or failing bulbs.
• Avoid Ballast Damage: Installing a quality replacement bulb prevents overtaxed ballasts from failing prematurely.

Compatibility & Technical Details

Bulb Type: D1S (Factory HID Systems Only)

Replaces OEM Part Numbers:

• OSRAM: 66340 / 66340HBI
• Philips: 42302 / 42302XV / 9285335244
• Audi: 0903110500
• Ford: 7L7Z13N021A / 7L7Z-13N021-A

Specifications:

• Wattage: 35W
• Color Temperature: 4,300K (Pure White)
• Lifespan: Up to 3,000 hours
• Origin: Made in Germany

Package Includes:

• 1x D1S HID Bulb

Pro Tip: If you suspect a bad bulb, swap it to the working side of your vehicle first. If the problem follows the bulb, you've confirmed it's faulty. If the problem stays on the same side, your HID ballast may need replacement instead.