AS Headlight Assemblies for 2003–2006 Chevy Silverado & Avalanche — Pair, OEM-fit, IP65

AS headlight assembly pair replaces both driver and passenger front lamps on 2003–2006 Chevrolet Silverado and Avalanche 1500/2500/3500 vehicles (excluding body-cladding models).

This pair of direct-fit headlamp assemblies is built to restore factory-style lighting and appearance for compatible Silverados and Avalanches. Designed as a bolt-on replacement, the assemblies accept HB3/HB4 high/low beam bulbs and 3457A turn signal bulbs (not included). Materials and sealing are chosen to resist heat, impact, dust, and water so the units survive daily driving and tougher conditions.

Will these headlights fit my 2003–2006 Silverado or Avalanche?

Yes, the AS assemblies are manufactured for direct OEM-style replacement on 2003–2006 Chevrolet Silverado and Avalanche models in 1500, 2500, and 3500 trims. They are not compatible with vehicles that have body cladding or non-standard aftermarket front ends.

• Fitment: 2003–2006 Silverado/Avalanche 1500/2500/3500 (driver + passenger pair).
• Exclusions: Not for models with factory body cladding or altered front fascia.
• Bulb sockets: High/Low HB3/HB4, turn signal 3457A (bulbs sold separately).
• Installation: Bolt-on, no cutting or wiring modifications required.

How durable and weatherproof are these headlight assemblies?

These assemblies use a fully sealed housing and premium materials to withstand road exposure and temperature extremes. The IP65 rating indicates protection from dust ingress and low-pressure water jets, suitable for rain and typical driving conditions.

• Sealed construction with premium polycarbonate lens and polypropylene housing.
• IP65-rated waterproofing for protection against splashes and light jets.
• High-temperature resistant PC that endures above 200°F for heat resilience.
• Impact and dust resistance for longer service life on rough roads.

How bright are these units and what lighting performance can I expect?

The reflector design uses a BMC reflector bowl with a high reflection coefficient to focus light efficiently from HB3/HB4 bulbs. Expect crisp, factory-style beam patterns and improved visual clarity compared with aged, oxidized originals.

• Reflector bowl with approximately 98% reflection rate for strong output.
• High-definition optics aimed for correct beam pattern and road coverage.
• Compatible with standard halogen HB3/HB4 bulbs for replacement ease.
• Turn signal socket accepts 3457A bulbs to restore signaling function.

How difficult is the installation and what support comes with purchase?

The assemblies are designed as plug-and-play replacements that install with factory mounting points and hardware in most cases. Typical installation takes about 15 minutes per side for a person with basic automotive tools, and a one-year warranty covers defects to give additional confidence.

• Bolt-on design uses factory mounting locations—no trimming or major wiring changes.
• Estimated install time: 15 minutes or less per side for experienced DIYers.
• Includes one-year warranty for manufacturing or material defects.
• Bulbs are not included; verify bulb type before installation.

Who is this for: These AS headlight assemblies are intended for owners of 2003–2006 Chevrolet Silverado or Avalanche trucks who want a direct-fit replacement to restore original appearance and lighting performance. They suit drivers seeking a cost-effective, durable solution that resists weather and heat, and who prefer a straightforward, bolt-on installation without modifying the vehicle. If your truck has body cladding or a modified front end, consult fitment details before ordering.