Partsam 5x Roof Cab Marker 1313S Smoke Round Assembly+5050 T10 Amber LED+Wiring for 1973 - 1987 Chevrolet C/K For 1973 - 1987 Chevrolet GMC C/K series Full Size PICKUP Trucks. Part # 1313S Direct replacement for OEM factory stock cab marker covers; LED Type: 5-5050-SMD Amber LED High Power; Cover Color: Smoke Come with T10 plug socket, convenient for modifying & rewiring; If the LED won't light up, simply flip it 180 degrees (reverse the polarity). Application: Roof Running Clearance Top Light Lamp Cab Marker Covers Lens. Direct replacement for OEM factory stock cab marker covers. Perfect fit & No leakage. Neither any cutting, modifying nor wiring is needed.