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OSRAM Classic D5S D5A 66541 HID Xenon Headlight Bulbs 35W 4500K | Pack of 2
Premium Philips X-tremeVision Gen2 HID Upgrade | Pack of 2
The OSRAM Classic D5S D5A 66541 HID Xenon Headlight Bulb Pack produces powerful daylight-white illumination, dramatically increasing down-road range and night driving safety. Manufactured by OSRAM, a globally recognized leader in automotive illumination, these authentic Classic Xenarc bulbs feature an upgraded 35W design that delivers an average light output of ~3148 lumens with a crisp 4500K color temperature. Available through HIDConcept.com, this 2-pack offers an OEM-grade plug-and-play performance upgrade complete with a standard PK32d-7 base.
Key Features & Benefits
- Authentic OSRAM Quality: Features genuine OSRAM branding and reliability for dependable, long-lasting performance.
- Upgraded 35W Performance: Designed as a high-output 35W upgrade to the standard 25W D5S system, delivering increased brightness (~3148 lm average) on the road.
- 4500K Color Temperature: Produces a clean, natural white beam (~4500K) that improves contrast and visibility during nighttime driving.
- Standard PK32d-7 Base: Features the PK32d-7 base socket, making it a direct-fit replacement for compatible original equipment applications.
- Convenient Pack of 2: Supplied as a twin pack, making it easy to replace both headlight bulbs simultaneously for a consistent appearance and balanced beam pattern.
Compatible Manufacturer Part Number
Audi: 8W0941235
GM AC Delco Chevrolet/GMC: 13594523
Hyundai Kia: 18647-25012 (Note: 2017-2018 Hyundai Elantra has both D5S and D1S low-beam headlights)
Vehicle Compatibility Section
The OSRAM Classic D5S D5A 66541 HID Xenon set is engineered specifically for vehicles factory-equipped with D5S or D5A HID headlamp applications.
Alfa Romeo
4C: 2015 - 2018 (Check! D3S & D5S used)
Giulia: 2017 - 2018 (Check! D2S & D5S used)
Audi
A3: 2017 - 2018
A3 Quattro: 2017 - 2018
A3 Sportback e-Tron: 2017 - 2018
A4: 2017 - 2018
A4 Quattro: 2017 - 2018
A4 Allroad: 2017 - 2018
A6: 2016 - 2018
A6 Quattro: 2016 - 2018
Q3: 2016 - 2018
Q3 Quattro: 2016 - 2018
Q7: 2017 - 2018
Chevrolet
Equinox: 2016-2020
Silverado 1500: 2016 - 2018
Silverado 2500 HD: 2016-2020
Silverado 3500 HD: 2016-2020
GMC
Sierra 1500: 2016 - 2019
Sierra 2500 HD: 2016 - 2020
Sierra 3500 HD: 2016 - 2020
Terrain: 2018-2020
Hyundai
Elantra: 2017 - 2018
Jeep
Renegade: 2017 - 2018
Kia
Forte: 2017 - 2018
Forte5: 2017 - 2018
Popular Vehicle Applications:
Widely used as an original equipment replacement and upgraded solution across modern European and American vehicle platforms, including select Audi, Chevrolet (Silverado), GMC (Sierra), Hyundai, and Kia models equipped with factory 12V D5S systems.
System Compatibility Note:
The OSRAM Classic 66541 is designed as a 35W upgraded variant of the original 25W D5S bulb. Ensure your vehicle’s factory ballast and wiring system support 35W power delivery for optimal performance and proper lighting operation.
Performance & Visibility Section
Factory 25W D5S HID bulbs typically produce limited lumen output (~2000 lumens) to comply with specific international regulatory thresholds without requiring headlight washers or auto-levelers. Upgrading to the OSRAM D5A 66541 35W HID kit replaces standard output with an increased average of ~3148 lumens of crisp 4500K illumination. By utilizing precisely aligned arc capsules, drivers benefit from wider beam spread, sharper road boundary definition, and improved sign reflectivity without blinding oncoming motorists.
OEM Quality & Reliability Section
OSRAM is an industry authority in automotive illumination, trusted by major vehicle manufacturers worldwide. Unlike non-branded or low-quality generic replacement HID bulbs that suffer from premature color shift and capsule failure, the OSRAM 66541 series delivers verified output stability, strict color tolerance, and long-term operating life.
Installation Information
Installing the OSRAM Classic D5S D5A 66541 HID Xenon Bulbs is a direct plug-and-play process. Begin by switching off the ignition and ensuring the headlight assembly is completely powered down. Access the rear of the headlight housing, disconnect the factory 12V electrical harness from the base of the original D5S/D5A unit, unlatch the retaining spring clip, and remove the bulb. Insert the new OSRAM D5A 66541 unit into the housing, taking care not to touch the clear glass capsule with bare hands, align the PK32d-7 base tabs, and lock the retaining clip into place. Reconnect the vehicle power harness directly to the base socket and test headlight activation to verify proper operation and alignment.
Technical Specs
| Size | D5S |
| Base | PK32d-7 |
| Technology | HID Xenon |
| Color temp. (K) |
Up to 4500K |
| Lumens (lm) | 3148lm ±15% |
| Voltage |
12V |
| Wattage |
35W |
| Manufacturer part number (MPN) | 66541 |
HIDCONCEPT.COM ships worldwide using UPS, DHL, & USPS within 24-48 hours during the business days.
For International customers:Please be aware that your country may charge you customs duties, taxes, and brokerage fees on importing goods on certain products. We are not responsible for any customs or duty taxes that your country’s government agency may charge on your merchandise. We advise you to consult your local government import office with any questions.
Return
We will accept returns for a refund or exchange on products in NEW/ unopened condition with the UNOPENED original package within 30 days of delivery. All returns without an exchange are subject to a 15% restocking fee without exception. The customer would be responsible for return shipping unless the reason for the return was our mistake which we will send you the pre-paid shipping label for. Your original shipping cost will be deducted from the refundable amount if you use the promotional free shipping code. All refunds must be issued back to the original payment method. We will NOT be able to process your return if your RMA number is not included with your product. Please allow 2-3 business days for us to process the return upon receipt.
We reserve the right to deny/ refuse the return if your return does not meet the criteria stated above.
Exchange
Product may be exchanged if they are in NEW/ unopened condition with the UNOPENED original package within 30 days of delivery. Customer is responsible for shipping cost to and from our warehouse unless exchange is required by our mistake which we will cover all the shipping costs. You will not be able to re-use any promotional free shipping code if you have already used them on your original purchase.
Refund
Please allow 2-3 business days for us to process your refund once we receive your returned product. We will not issue the refund if your returned product does not meet the criteria we have stated on our return policy. Please note that there is a 15% restocking fee unless you are returning your product for an exchange.
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