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 Reference 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 29mm | 6614F, 6641, 6614, F30-WHP, TS-14V1CP |
| 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 | 578, 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 |