921

921-size bulbs are the most common size for backup lights in modern vehicles, including Ford, Subaru, Dodge, and many othe models. Diode Dynamics is proud to be the premier provider of 921-size LED replacement backup bulbs!

All Diode Dynamics LED upgrade bulbs are 100% plug-and-play, and drop right into place of your factory bulbs. Our products are built with the highest quality components, for years of reliable performance!
921 cross reference: T8, T12,T15, 194, 175, 168, #555, 2886X, 194R, 161B, 3652, 193, 658, 2827, 194NA, 161, 558, 168NA, 2825, 194G, 160, 168A, 192, 2821, 194B, 158, W5WB, 579, 168, 2825ST, 168ST, 3652LL, 579LL, 2825LL, 168NALL, 2825L, 2821LL, 168LL, 194ST, 161LL, 194NALL, 2827LL, 158LL, 194LL, 906NA, 917, 906, 916NA, 904NA, 922, 916, 904, 921, 912, 920, 921K, 916LL, 921LL, 912LL, 920LL, 917LL, 906LL, 916NALL, 904LL, 921ST