KarSpareHub Halogen Headlight Assemblies for GMC Sierra & Yukon 1999–2007 – OEM-fit, HB3/HB4 Included

These direct-fit halogen headlight assemblies are engineered to match factory mounting points and electrical connectors for the specified GMC model years, carrying OEM cross-references (15850351, 15850352; Partslink GM2502188, GM2503188). Each lamp arrives sealed, pre-wired, and ready to install with the low-beam HB3 and high-beam HB4 bulbs included. They combine lasting optical clarity, reliable moisture protection, and a three-year limited warranty for everyday driving confidence.

Will these headlights fit my GMC Sierra or Yukon?

Compatibility is specific: these assemblies are tested to fit 1999–2006 GMC Sierra 1500/2500/3500 and 2007 Sierra 1500/2500/3500 classic models, plus 2000–2006 GMC Yukon 1500/2500 XL. They are not compatible with certain old-body or new-body Sierra variants or with Yukon Denali models.

• OEM cross-reference: 15850351, 15850352; Partslink: GM2502188, GM2503188
• Fits: 1999–2006 GMC Sierra 1500/2500/3500; 2007 Sierra classic 1500/2500/3500
• Fits: 2000–2006 GMC Yukon 1500/2500 XL
• Not compatible: 1999 Sierra old-body, 2007 Sierra new-body, or Yukon Denali

How durable and weatherproof are these replacement headlights?

Durability is built into the assembly with a multi-stage sealing process and UV-protected lens. The housings use a specialty PUR adhesive for a fully sealed unit and a one-way breathable film at the base to balance internal pressure without letting moisture enter.

• 100% air-tightness inspection for each assembly
• PUR adhesive seal to prevent water intrusion and fogging
• UV optical coating to resist yellowing and lens aging
• Composite base with breathable film for temperature stability

What lighting performance and safety features do I get?

These halogen assemblies meet SAE standards and are engineered for clear illumination of the road while maintaining legal compliance. The included HB3 low-beam and HB4 high-beam bulbs offer straightforward plug-and-play lighting so you can restore original light patterns quickly.

• Compliant with SAE regulations for on-road use
• Included bulbs: HB3 (low) and HB4 (high) for immediate installation
• Precision reflector and lens engineering for consistent beam pattern
• Clear optics supported by UV coating to maintain long-term clarity

Is installation something I can handle myself?

Yes—these housings are designed for simple replacement using factory mounting points and connectors. A typical owner with basic hand tools can swap the assemblies, though a repair shop will handle it quickly if you prefer professional installation.

• Direct-fit connectors—no splicing required
• Standard hand tools typically suffice for a DIY swap
• Pre-installed seals and wiring reduce installation steps
• Detailed warranty card included for post-install support

Who is this for: This product suits GMC owners who need a reliable, OEM-compatible halogen headlight replacement for the listed Sierra and Yukon years—drivers restoring factory appearance and function, fleet maintenance managers replacing worn units, and DIY mechanics who value plug-and-play fitment and long-term lens protection. If you need exact fit confirmation, check the OEM/Partslink numbers (15850351/15850352, GM2502188/GM2503188) against your vehicle's part references before purchase.