Bulb numbers from owner's manuals
Car bulb numbers
Bulb numbers printed in the owner's manuals this site has read, ranked by how many model years list them. Open a number for the cars and positions.
| Bulb | Model years | Models | Watts printed |
|---|---|---|---|
| W5W | 202 | 34 | 5 and 5 (LED*) |
| H11 | 133 | 26 | 55 |
| 7444 | 101 | 19 | 21/5, 28 and 28/8 |
| W16W | 96 | 21 | 16 and 12 |
| WY21W | 87 | 13 | 21 |
| 921 | 84 | 19 | 16 and 18 |
| 9005 | 58 | 15 | 55, 65 and 60 |
| HB3 | 52 | 19 | 60, 65 and 5.8 |
| W21W | 47 | 10 | 21 and 5/21 |
| H8 | 46 | 15 | 35 |
| H9 | 45 | 7 | 65 |
| 7443 | 44 | 12 | 21, 21/5 and 5/21 |
| H16 | 35 | 6 | 19 |
| 168 | 31 | 7 | 5 |
| 3157 | 31 | 8 | 27/8, 27 and 27/7 |
| W21/5W | 31 | 5 | 21 and 21/5 |
| 3457 | 28 | 5 | 21, 27/7 and 28/8 |
| PY21W | 28 | 10 | 21 and 21/27 |
| P21W | 25 | 8 | 21 |
| P21/5W | 24 | 8 | 21/5, 21, 5 and 21/15 |
| 912 | 19 | 3 | 12.8, 16 and 12/8 |
| WY5W | 19 | 6 | 5 |
| 194 | 17 | 7 | 3.8 and 5 |
| 7440 | 14 | 4 | 21 |
Which bulbs come up most
The three most listed numbers are W5W (202 model years), H11 (133 model years), 7444 (101 model years). Small wedge bulbs dominate because every car has several marker, plate and reverse positions, while headlamp capsules appear once or twice per car.
Suffixes
Letters after the number are variants, not different sizes: NA means a natural amber glass, A or K mark a long-life or different-filament version from one maker, and LL means long life. Keep amber positions amber; the other suffixes can be swapped within the same base number.
How to use these pages
Open a bulb number to see every car and position that lists it, with links to the model-year pages where the manual page is cited. If your car is not listed, the same number from another car is still the same bulb: the number defines the base, filament and size, not the car.
US numbers and ECE names
US manuals mostly print trade numbers (194, 7443, 9005). Japanese, Korean and European makers print ECE categories (W5W, W21/5W, HB3). Mazda prints both side by side, and those pairs are shown on the bulb pages where a manual printed them. This site does not add cross-references that no manual printed.
Headlamp capsules have their own names: H11, H9 and H8 are the low beam, high beam and fog sizes used most in these manuals, and 9005 (also called HB3) is the most common high beam.