5.75" Round LED Headlight Conversion Kit (4-Pack) for Classic Chevy & GMC Trucks

Upgrade Your Classic Ride to Modern, High-Output LED Lighting

Bring crisp, modern visibility to your vintage vehicle without losing its classic aesthetic. This premium 4-Pack 5.75-Inch Round Headlight Conversion Kit is a complete, direct plug-and-play upgrade engineered for vintage cars and trucks equipped with original four-headlight (quad) configurations.

Vehicle Compatibility & Fitment Guide:

This conversion system is built to the industry-standard H5006 / H5001 5.75" dimensions, making it a universal direct fit for classic vehicles utilizing four round sealed beams. It is explicitly verified to fit:

• Chevy 3100 Trucks: Model years 1958 and 1959.

• GMC C15 / C1500 Pickups: Model years 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, and 1972.

• GMC C2500 Pickups: Model years 1967, 1968, 1969, 1970, 1971, and 1972.

Real Product Transparency Note (What is in the box):

Online stock images can be confusing because they often digitally alter graphics to show a mix of 2-prong and 3-prong bases. We believe in complete transparency: Our kit includes four matching, high-performance 3-prong H4 dual-beam LED bulbs.

To make installation seamless across classic quad-light setups, we include four premium plug-and-play wiring adapter harnesses right in the box. Your outer headlights plug directly into your truck's factory 3-pin plugs. Your inner headlights use the included adapters to bridge the connection to your vehicle's factory 2-pin wiring setup. This ensures a uniform, premium build across all four lights without cutting or splicing your truck's original wiring.

Key Features:

• Complete 4-Light Conversion System: Includes 4 round crystal-clear fluted glass housings, 4 matching fanless 3-prong H4 LED bulbs, and 4 premium wiring adapter pigtails to replace every lamp on your vehicle.

• Fanless Passive Cooling: The H4 LED bulbs are engineered with compact, integrated horizontal aluminum cooling fins. There are no bulky, noisy mechanical fans to fail or crowd your tight headlight buckets.

• 1:1 Halogen Size Beam: Designed to perfectly match the filament positioning of traditional sealed beams, delivering a clean, sharp light cutoff that won't blind oncoming drivers.

• 4-Pack T10 Accent Bulbs: Includes 4 matching mini T10 LED wedge bulbs, allowing you to simultaneously upgrade all your vehicle’s secondary lighting paths—such as front parking city lights, side markers, or interior dome fixtures—to a matching crisp white color temperature.

• Heavy-Duty Ceramic Build: The included adapter wiring pigtails feature high-temperature blue ceramic sockets to safely handle heat, prevent melting, and maintain optimal conductivity.