Rear lamp bulb part numbers

Tags: #part-number · #turn-signal

FAW X80 rear-light bulbs: the brake/stop light uses a P21W bulb, 12V ¹²³⁴. The turn-signal bulb is a PY21W ⁵⁶. The front turn-signal/parking lamp uses the same PY21W bulb type ⁷⁸.

Simple bulb-out fix. A dashboard warning light (reported as likely a turn-signal or brake-light indicator) was resolved simply by replacing a single burnt-out bulb — a quick, cheap diagnosis worth trying before assuming a wiring/module fault ^{9101112 13141516}.

Both rear brake bulbs failed together. On a facelift model, both rear brake-light bulbs failed simultaneously; brake lights use regular incandescent bulbs (not LEDs) on this trim, and were replaced with standard bulbs. Note the facelift's габариты (parking lights) use LEDs while stoplights use bulbs — a source of confusion when diagnosing. Two bulbs failing at once suggests a possible shared-circuit/electrical issue worth a second look rather than assuming coincidental bulb wear ^{17181920212223}.

Reverse light — T15 W16W socket, and a specific LED option. Reverse (backup) light bulbs use the T15 W16W socket, which is also cross-listed under 906/912/921 codes — useful when searching multiple part-numbering systems ²⁴²⁵. Confirmed working example: AILEO T15 906 W16W LED 4014 54-SMD 7W 1800LM, 6000K color temperature, sold on AliExpress for roughly 380 RUB (RU market, December 2025), described by the owner as error-free (i.e. doesn't need a load resistor to avoid dashboard warnings) ²⁵.

Brake/stop light bulb — P21W confirmed again, plus a socket-removal caution. Reconfirming the P21W spec above from an independent thread: the brake/stop light bulb is P21W ²⁶. Some owners report difficulty removing the bulb socket itself — the screw-type fitting can stick, especially in cold weather where oxidation in the socket threads increases resistance to turning. If stuck: don't force it — gently wiggle the connector/socket while turning, or use a tool that gives better grip without cracking the plastic ^{27 28}.

Tail-light bulb socket stuck — cold-weather-specific technique. Extending the cold-weather sticking issue: in freezing temperatures, the brake/tail-light bulb socket can become stuck specifically from a combination of corrosion and thermal contraction of the plastic housing. Technique: use a small tool with a soft/padded tip (rubber-tipped, not bare metal) to gently wiggle and turn the socket counter-clockwise; manipulating nearby wiring sometimes helps release it too. Cold plastic is brittle, so be deliberately gentle to avoid cracking the housing — one owner chose to defer the repair until warmer weather rather than risk cracking the lamp housing by forcing it ^{293031 3233343536}.

Bulb types from an accessory list. The X80 uses W16W for the reverse lights, C5W 31 mm for the three interior lights and W5W for the trunk light ³⁷.

Media

Rear light fixture with stuck bulb holder, red plastic socket visible

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Sources

This page is compiled from 37 community messages. Every fact carries a numbered reference to its original author and message.

Last updated: 2026-10-29