Bulb No. 1157, 12V Size 4-1/4″ dia. x 2-1/2″ deep Stud: 20 thread, 7/16″ dia, 1-1/2″ long Material Chrome heavy duty die cast housing, acrylic lens w/ 3 mounting holes Wire Connection 18 Gauge 2 wires, stud as ground Unit & Package Sold by each, color display bag Part No. Function Lens Color 80300 Park/Turn/Clearance Amber/Red