GTMOTO D3S HID Bulbs for GM ACDelco 13587843 - 6000K 35W Matched Pair, Plug-and-Play

If your vehicle originally used D3S xenon modules, these GTMOTO bulbs provide a plug-and-play alternative that delivers cooler, whiter light and improved perceived range compared with older warm HID or halogen units. They are built for compatibility with OEM-style HID ballasts (not for 12V halogen sockets) and come as a two-piece set so both sides match color and intensity.

Will these bulbs fit my GM car’s existing headlight system?

These D3S bulbs are made to match the PK32d-5/D3S socket and the electrical requirements of factory 35W xenon ballasts used in many GM models. They are not compatible with standard 12V halogen sockets or systems that require a different HID type.

• Direct replacement for D3S/PK32d-5 xenon assemblies
• Works with OEM or aftermarket 35W HID ballasts only
• Not a fit for 12V halogen connectors (H7, H11, etc.)
• Check vehicle parts list for ACDelco GM 13587843 or D3S specification

How does the 6000K color temperature affect night driving?

The 6000K color produces a cool white that looks closer to daylight, improving contrast and the appearance of road details at night. While it doesn’t increase the raw lumen rating over legal limits, the whiter output can make signs and lane markings easier to spot for many drivers.

• Cool white 6000K hue for sharper contrast
• Perceived longer reach compared with older warm HID tones
• Reduced yellowing effect versus 4300K or older xenon bulbs
• Instant strike with brief warm-up to full output

What should I expect from installation and durability?

Installation is intended to be quick and straightforward, usually completed in under ten minutes by swapping bulbs into the factory housing. The bulbs are manufactured from anti-UV quartz glass and rated for thousands of hours of typical use, but final lifetime depends on heat, vibration, and ballast condition.

• Plug-and-play fitment for D3S housings—no cutting or splicing
• Comes as a matched pair to ensure consistent color
• Anti-UV quartz glass construction for increased lifespan
• Designed to work with original-style HID ballasts for proper operation

Are these bulbs brighter than factory xenon lamps?

GTMOTO markets this D3S set as a visual upgrade versus older or degraded xenon bulbs, offering a perceived brightness boost and cooler tone. They meet equivalent power specifications (35W) and focus on improved clarity and color uniformity rather than exceeding ballast or legal output limits.

• Same 35W power rating as OEM D3S bulbs
• Visually clearer, whiter beam for better roadside contrast
• Not intended to bypass ballast limits or increase wattage
• Ideal when replacing dim or color-shifted factory xenon bulbs

Who is this for: Drivers who own GM, Buick, Cadillac or related models originally equipped with D3S xenon headlamps and who want a matched pair replacement that restores a cool white, crisp beam. Avoid these bulbs if your car uses 12V halogen sockets or a non-D3S HID type—verify your bulb code or ACDelco part reference before purchase. GTMOTO provides the pair boxed and ready to install for owners seeking a quick, color-matched xenon refresh without modifying the lighting system.