This is a premium plastic H4 (9003) type male headlight plug kit w/ terminals.  This pigtail plug reproduces the same connector ends found on most high/low headlights including 7 inch round sealed beam headlamps (H6024), rectangular headlights (H6054, H4666, & H6545), and the halogen replacement lights available for most cars built before the 1980s.  This pigtail plug is also correct for quad headlight systems for the low beam (outer lamp). This includes 5 3/4 inch round headlights (H5006) and rectangular H4656 bulbs.  

This connector is commonly referred to as an H4, HB2, P43T, or 9003 type connector.  It is ideal for connecting to a factory installed wiring harness, fabricating extension harnesses, and other custom harness builds.  This connector is designed for 12V-16V automotive applications.  The terminals can accommodate 18-14ga wires with ease. These plugs are often paired with a Ceramic Socket Kit to bulb a high temp extension harness when using Xenon lights, HID, and other high output bulbs.  For those applications that require a little extra wire, we also offer this socket pre-wired with quality 14ga US made wiring pigtail.

This product is offered with the classic muscle car restorers and vehicle customizers in mind.  This socket kit is a great way to connect to existing head lamp wiring without splices or modifications. It is also a perfect product for custom made headlight harnesses and extensions. For those customizers looking for brighter headlight output, we offer a free download of our do it yourself Headlight Relay Harness in our tech section.