cciyu 20x Ultra White T5 SMD Wedge Car LED Instrument Light Bulbs 2721 74 73 70 17 37 Fit 1995-1997 2000-2002 Dodge Spirit Viper Stealth Ram 3500 Ram 2500 B3500 B2500 Intrepid Avenger Durango Length: 8.46mm X 18.03mm. Power: 0.5W-1.00W. 74 type(T1-3/4) 3/16 inch wide base small Wedge Base LED bulbs. Compatibility: 1995-2002 Chevrolet S10 K3500 K2500 Suburban K2500 K1500 Suburban K1500 G30 G20 G10 C3500 C2500 C1500 Suburban C1500 Tahoe Monte Carlo Express 3500 Express 2500 Express 1500 Silverado 2500 Silverado 2500 HD Silverado 3500 Venture Camaro Suburban 2500 Cross Reference: Replace Stock Number:17, 18, 27, 37, 58, 70, 73, 74, 79, 85, 86, 206, 207, 286, 306, 307, 308, 406, 407 & 2721 T5 wedge base bulbs. Application: Replace the light with T5 base, such as instrument Panel indicators, Speedometer, Tachometer,Gauge Cluster, Check Engine indicator, Highbeam indicator, Shifter Lights,etc Please NOTE: If the LED does not light up, simply Rotating it 180 degrees (reverse the polarity)