2025 Nissan Altima parts sizes

What the official 2025 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

Replaceable bulbs: W21/5W (rear stop/tail); W21W (rear turn); W5W (rear side marker); 921 (backup (reversing))

Bulb wattages printed in the 2025 Nissan Altima owner's manual, bars to scale from zero.

2025 Nissan Altima owner's manual

Source: the official 2025 Altima owner's manual (PDF from Nissan).

Exterior bulbs

Position	Bulb	Watts	Manual
Rear stop/tail (21/5 W)	W21/5W	21 W	p. 479
Rear turn	W21W	21 W	p. 479
Rear side marker	W5W	5 W	p. 479
Backup (reversing)	921	16 W	p. 479
Backup assembly tail	W5W	5 W	p. 479
License plate light (wattage printed, no bulb number)	not printed	5 W	p. 479

How the 2025 compares with nearby years

Against the 2024 Altima: the two manuals do not print the same part types, so there is nothing to compare line by line.

Against the 2026 Altima: the two manuals do not print the same part types, so there is nothing to compare line by line.

Shared with other 2025 models

W21/5W (rear stop/tail): 1 other 2025 model lists it, including Nissan Sentra.
W21W (rear turn): 4 other 2025 models list it, including Chevrolet Trax, Ford Bronco Sport, Nissan Frontier, Nissan Rogue.
W5W (rear side marker and backup assembly tail): 14 other 2025 models list it, including Ford F-150, Ford Maverick, Kia Carnival, Kia K5, Kia Niro, Kia Seltos.
921 (backup (reversing)): no other 2025 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 2025 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 2025 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 1 page of the manual (479). 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