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2018 Nissan Altima parts sizes
What the official 2018 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
- 1Low beam H11 · high H9
2018 Nissan Altima owner's manual
Source: the official 2018 Altima owner's manual (PDF from Nissan).
Exterior bulbs
| Position | Bulb | Watts | Manual |
|---|---|---|---|
| Low beam headlight (halogen) (Type A) | H11 | 55 W | p. 400 |
| High beam headlight (halogen) (Types A and B) | H9 | 65 W | p. 400 |
| Turn/park (28/8 W) | 7444NA | 28 W | p. 400 |
| Side marker (front) | W5W | 5 W | p. 400 |
| Fog light | H11 | 55 W | p. 400 |
| Daytime running (fog light assembly) (Type A fog assembly) | PS19W | 19 W | p. 400 |
| Rear stop/tail (21/5 W) | W21/5W | 21 W | p. 400 |
| Rear turn | WY21W | 21 W | p. 400 |
| Rear tail | W5W | 5 W | p. 400 |
| Rear side marker | W5W | 5 W | p. 400 |
| Backup | 921 | 18 W | p. 400 |
| License plate light | W5W | 5 W | p. 400 |
How the 2018 compares with nearby years
Against the 2017 Altima: The low-beam bulb and high-beam bulb are the same in both manuals.
Against the 2019 Altima: the high-beam bulb changed (HB3 in 2019 vs H9 in 2018). The low-beam bulb is the same in both manuals.
The H11 low-beam bulb appears in every Altima manual from 2015 to 2022 that this site has read (8 model years).
Shared with other 2018 models
- H11 (low beam headlight (halogen) and fog light): 17 other 2018 models list it, including Ford Escape, Ford F-150, Ford Transit, Honda CR-V, Honda Civic, Honda Odyssey.
- H9 (high beam headlight (halogen)): 6 other 2018 models list it, including Ford Escape, Nissan Kicks, Nissan Pathfinder, Nissan Rogue, Nissan Sentra, Toyota Tacoma.
- 7444 (turn/park): 14 other 2018 models list it, including Ford Escape, Ford F-150, Mazda CX-5, Nissan Frontier, Nissan Pathfinder, Nissan Rogue.
- W5W (side marker (front), rear tail, rear side marker and license plate light): 16 other 2018 models list it, including Ford Escape, Ford Explorer, Ford F-150, Ford Transit, Mazda CX-5, Mazda Mazda3.
- PS19W (daytime running (fog light assembly)): no other 2018 model this site has read lists it.
- W21/5W (rear stop/tail): 4 other 2018 models list it, including Ford Escape, Nissan Kicks, Nissan Pathfinder, Nissan Sentra.
- WY21W (rear turn): 10 other 2018 models list it, including Ford Escape, Ford Explorer, Nissan Kicks, Nissan Pathfinder, Nissan Rogue, Nissan Sentra.
- 921 (backup): 11 other 2018 models list it, including Ford Escape, Ford F-150, Mazda Mazda3, Nissan Frontier, Nissan Rogue, Toyota Camry.
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 2018 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 2018 Altima
- Headlight bulbs: the H11 low beam and the H9 high beam are halogen capsules on trims that have them; buy them in pairs so both sides match in colour and output.
- Small bulbs: this manual names 12 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 1 page of the manual (400). 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