Bulb Size Cross References

When converting a halogen or incandescent bulb on your vehicle to LED, it can oftentimes be difficult to determine what bulb size you need when the bulb size listed in your owner's manual or on the bulb doesn't match the sizes you find online. Many bulbs use the same base and connectors, but are referred to as a different bulb size in your owner's manual. Below you will find a list of the most common bulb bases and their cross references.


Halogen Bulb Cross Refernce Number
74 2723, 118, 74, 2721, 73, 103, 70, 18, 37, 37LL, 2723LL, 74LL, 2721LL, 73LL 17, 18, 37, 79, 85, 86, 2721
194/T10 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, and 921ST
921 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
1156/BA15S 1141, 2396, 67, 87, 12088, 1156NA, 97NA, 1095, 93, 97A, 1295NA, 97, 3497, 1073, 1295, 1195, 1156A, 7506, 199, 631, 1156ST, 1073LL, 1156LL, 7506L, 3497LL, 7506ST, 1156ALL, 97LL, 7506LL, 93LL, 631LL, 1141LL, 5008, 5007, 1155, 89, 57X, 105, 1003, 98, 1003LL, 67LL, 89LL, 105LL, 5008LL, 5007LL, 1155LL, P21W
1157/BAY15D 1034, 1178A, 2057A, 2357NA, 2357A, 1157A, 7528, 2057, 1016, 2357, 1196, 1157, 1142, 94, 3496, 2397, 2357ALL, 2057ALL, 7528L, 1157ST, 3496LL, 1034LL, 2397LL, 1157LL, 2057ST, 2357LL, 1157ALL, 2057LL, 7528LL
7440/T20 7441, 992, 7440, 7440ST, 7440AL, 7440LL, 7440A
*7443 CAN REPLACE 7440, BUT 7440 CANNOT REPLACE 7443
7443/T20 7444NA, 7443, 7443ST, 7443LL
*7443 CAN REPLACE 7440, BUT 7440 CANNOT REPLACE 7443
3156/T25 3456, 3156A, 3156, 3156AK, 3156ST, 3156K, 3156LL, 3456LL
*3157 CAN REPLACE 3156, BUT 3156 CANNOT REPLACE 3157
3157/T25 3155, 3457A, 3457NA, 4057,4157, 3157A, 3057A, 3157, 3157NA, 5702A, 4157NA, 3057, 3454NA, 4157, 3047, 3357A, 3757A, 3457, 4114, 3357, 4114LL, 3457K, 3157LL, 4157K, 3057LL, 4157NAK, 3357LL, 4057LL, 3157K, 3357K, 3057K, 3057ALL, 3457AK, 3357ALL, 4114K, 3157X, 3057KLCP, 3757AK, 3047LL, 3057KX, 3157ST, 3057X, 4057K, 3457NAK, 3155LL, 3457ALL, 4157LL, 3157NAK, 3157AK, 3157NALL, 3047K, 3757ALL, 3157KX, 3057ST, 5702AK
*3157 CAN REPLACE 3156, BUT 3156 CANNOT REPLACE 3157
Festoon 31mm/3022 3022, 3175 DE3022, 6428, DE3021, 7065, DE3175, DE3022LL, DE3021LL, DE3175LL
Festoon 36mm 3910, 3423, 3425, 6411, 6423 6461, 3710, 6418, 6486X, 6461, 6418LL
Festoon 41mm/211 4210, 6451, DE3425, DE3423, DE3425LL, DE3423LL, 212, 212-2, 214-2, 6413, 6429
44mm Loop 561, 562, 563, 567, 564, 566, 570
880 880M, 880ST
881 886, 898, 889, 894, 896, 889, 894, 896, 898
9005/HB3 9005XS, 9005, 9011, 9005CB, 9005XSCB, 9005SU, 9005L+, 9005ST, 9005XV, 9005EB, 9005XSST
9006/HB4 9006XS, 9006, 9006ST, 9006XV, 9006EB, 9006XSST, 9006CB, 9006HP, 9006XSCB, 9006SU
H3 H3-55W, 64146BC, H3-35W
H10 9005, HB3, 9005LL, 9011, 9040, H10, HIR1, 9145, PY20
H11/H16 H11B, H11, H11SU, H11ST, H11XV, H16 (H11 style, without side tabs)
P13W P13, 12277, PSX26W, 40-343
5202 H16-EU
2504 PSX24W


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