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2026 · Nissan
2026 Nissan Altima parts sizes
What the official 2026 Nissan Altima owner's manual prints for replacement parts: bulbs. Every value below is copied from the manual, with the PDF page so you can check it yourself.
- bulbs
- 1Rear stop/tail W21/5W
2026 Nissan Altima owner's manual
Source: the official 2026 Altima owner's manual (PDF from Nissan). Engines named in the parts tables: 2.5L 4-cyl (PR25DD).
Exterior bulbs
| Position | Bulb | Watts | Manual |
|---|---|---|---|
| Rear stop/tail (21/5 W) | W21/5W | 21 W | p. 440 |
| Rear turn | W21W | 21 W | p. 440 |
| Rear side marker (layout ambiguous) | W5W | 5 W | p. 440 |
| Backup (reversing) (layout ambiguous) | 921 | 16 W | p. 441 |
| Backup assembly tail (layout ambiguous) | W5W | 5 W | p. 441 |
| License plate light (wattage printed, no bulb number; layout ambiguous) | not printed | 5 W | p. 441 |
How the 2026 compares with nearby years
Against the 2025 Altima: the two manuals do not print the same part types, so there is nothing to compare line by line.
Shared with other 2026 models
- W21/5W (rear stop/tail): no other 2026 model this site has read lists it.
- W21W (rear turn): 2 other 2026 models list it, including Chevrolet Trax, Nissan Rogue.
- W5W (rear side marker and backup assembly tail): 8 other 2026 models list it, including Ford Maverick, Kia Carnival, Kia K5, Kia Niro, Kia Seltos, Kia Sorento.
- 921 (backup (reversing)): no other 2026 model this site has read lists it.
A shared number means the same replacement part fits both cars, so one spare can cover two cars in the household.
What the manual does not print
The 2026 Nissan Altima owner's manual does not list wipers, battery, filters and oil sizes; for the battery, read the label on the battery fitted to the car, then check the size against the BCI group chart; for wipers, measure each blade end to end and buy the nearest whole-inch size.
Buying the parts for a 2026 Altima
- Small bulbs: this manual names 5 replaceable bulb positions. Wedge bulbs such as W5W and 194 differ from twist-socket bulbs such as 7443 or 3157, so match the full number, including suffixes like NA (amber).
Check it on your car
Trim, engine and lighting package change some of these parts, so match the row that names your engine or trim. The facts on this page come from 2 pages of the manual (440, 441). Before you buy, compare the number printed on the old part with the table above. See how this site reads manuals.
Other Altima years
All Nissan Altima years in one table