1965 Mustang Headlight Wiring Harness.
Fits 65 models originally equipped with factory gauges. This would include factory GT models, cars with Pony Interiors, and early 66 Carryover GT350 Shelbys.
This harness is the largest wiring harness under the hood. It runs to the voltage regulator, horns, head lights, parking lights, etc.
This harness is Made in the USA and is the absolute best one on the market.
Please do not compare it to the cheaper imports.