WEILEITE Tail Light Wiring Harness Kit for Chevy Silverado 2003–2007 Left & Right Plug-and-Play Direct Replacement

Complete left and right tail light direct-wiring harness kit engineered to replace OE part numbers 16531401 and 16531402 for 2003–2007 Chevrolet Silverado models.

This WEILEITE harness set supplies an exact-fit, ready-to-install replacement for aging or damaged tail light wiring on compatible Silverado pickups. Designed to meet or exceed original equipment specifications, the kit eliminates intermittent taillight issues caused by cracked insulation, corroded terminals, or brittle wiring. The plug-and-play design removes the need for splicing or modifying existing wiring, letting you restore reliable rear lighting quickly.

Will this wiring harness fit my Chevy Silverado?

Check the model years and OE numbers before purchase to confirm compatibility. This kit fits specific Silverado lineups and directly replaces the factory harnesses identified by part numbers 16531401 and 16531402.

• Fits: 2003–2007 Chevrolet Silverado 1500
• Also fits: 2003–2006 Silverado 1500HD, 2003–2007 2500HD, 2003–2007 3500
• Replace-only: confirm your vehicle’s year and existing harness part number

How difficult is installation and what tools are needed?

Installation is straightforward for anyone comfortable with basic vehicle electrical work because this is a direct-replacement harness. No cutting, splicing, or soldering is required—each connector mates with the factory socket to restore the tail light circuits.

• Typical tools: basic hand tools to remove tail lamp assembly (screwdriver, socket set)
• Time: often 15–45 minutes per side depending on access and experience
• No wiring modifications needed—plug-and-play connectors match OEM sockets

What materials and quality features does the WEILEITE harness include?

The harness is built with enhanced, weather-resistant materials and heavy-duty connectors to withstand under-vehicle conditions and repeated flexing. Components are factory-tested to meet or exceed OEM performance for reliable long-term operation.

• Durable, wrapped plastic jacket resists heat, moisture, and chemical exposure
• Heat-resistant, high-efficiency plugs reduce risk of melting and connection failure
• Corrosion-resistant terminals and reinforced insulation for extended service life

What warranty and support come with this kit?

WEILEITE provides lifetime warranty service on this product and factory testing ensures it meets OEM standards. Customer support is available to help with fitment questions or any post-purchase concerns.

• Factory-tested prior to shipment to verify fit and function
• Lifetime warranty and responsive after-sales support
• Contact WEILEITE for troubleshooting or replacement assistance

Who this is for: This wiring harness kit is ideal for Silverado owners whose taillight harnesses show wear—cracked insulation, intermittent lights, or corroded connections—or for anyone restoring a 2003–2007 Silverado to safe, reliable operation. Mechanics, DIY enthusiasts, and fleet technicians will appreciate the direct-replacement fit, durable materials, and plug-and-play installation that minimize downtime without compromising on OEM-style performance.