【How-to】What vehicle does a 3157 bulb fit

Kenny, yes, these standard 3157 brilliant red LED bulbs will fit 4057K. The 3157 bulbs will replace many size bulbs such as 3156, 3057, 3056, 4157, 3157K etc. And there isn’t somethig different between 4057 and 4057k, just the named method is different.