With a 12-pack of miniature bulbs, you can enjoy reliable and long-lasting performance, reducing the need for frequent replacements. Cross reference:3156= 3156ll 3155 3456 4156 3156ll 12v 27w P27W Bulb base =W2,5x16d 3156 Back up Light Bulbs can be used in Crown Victoria 2000-2011,E150-E350...