KarSpareHub Halogen Headlight Assemblies for GMC Sierra & Yukon 1999–2007 — HB3/HB4, OEM-fit, Sealed UV-coated

These KarSpareHub headlamps are engineered to match factory mounting, electrical connections, and beam patterns for specified GMC trucks and SUVs. Each assembly meets listed OEM part references and has gone through air-tight and UV-protection processes to resist moisture and lens yellowing. Bulbs come pre-installed so you can restore safe night visibility immediately after fitment.

Will these headlights fit my GMC Sierra or Yukon?

If your vehicle is a 1999–2006 GMC Yukon 1500/2500 XL or a 1999–2006 GMC Sierra 1500/2500/3500 — including the 2007 Sierra Classic 1500/2500/3500 — these assemblies are designed for direct fit. They match OEM numbers 15850351 and 15850352 (Partslink GM2502188, GM2503188). Note excluded variations to avoid misfit.

• Compatible: 1999–2006 GMC Yukon 1500 / 2500 XL
• Compatible: 1999–2006 GMC Sierra 1500 / 2500 / 3500
• Compatible: 2007 GMC Sierra 1500 / 2500 / 3500 Classic
• Not compatible: 1999 Sierra Old Body Style, 2007 Sierra New Body Style, or GMC Yukon Denali

How durable and weather-resistant are these headlight assemblies?

Durability is addressed through a sealed housing and materials chosen to withstand road conditions. A specialized polyurethane adhesive and a one-way breathable film reduce water intrusion and internal condensation, while UV-treated lenses fend off discoloration.

• 100% air-tightness checked during production
• PUR adhesive seals out moisture
• Breathable film stabilizes internal humidity and temperature
• UV optical coating delays lens yellowing

What should I expect from light output and compliance?

These halogen assemblies provide a clear, regulated beam pattern suitable for night driving and meet SAE requirements. They come with matched HB3 low-beam and HB4 high-beam bulbs already installed to simplify replacement and ensure consistent performance straight out of the box.

• Includes HB3 (low beam) and HB4 (high beam) bulbs
• Optical lens coating for long-term clarity
• Designed to reproduce factory beam pattern
• Manufactured to conform with SAE standards

How easy is installation and what warranty is included?

Installation is straightforward for a mechanic or a competent DIYer — the assemblies use factory-style connectors and mounting points. KarSpareHub backs the product with a three-year coverage period for defects arising from normal use; start a refund or replacement by supplying order details and photos.

• Factory-style fitment, plug-and-play connectors
• Can be installed at home or by a shop
• 3-year warranty for regular-use damage
• Warranty instructions included in the box

Who is this for: These KarSpareHub headlight assemblies are intended for owners of compatible GMC Sierra and Yukon trucks who need a reliable, OEM-fit replacement that restores original mounting and beam alignment. Choose this option if you want ready-to-install halogen lamps with built-in moisture protection and a multi-year warranty, whether repairing a collision-damaged unit or refreshing aged, yellowed lenses.