Subaru Impreza Fog Lights: Specs, Fitment & Common Faults
On the Impreza, if only one fog light has genuinely failed while the other works, this already narrows the fault to that specific side.
Illustration for editorial purposes
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OEM Part Number: confirm via VIN — aftermarket TYC 19-12317-01-9 / TYC 19-5921-11-2
| Fog light, passenger side (LH / nearside) — aftermarket | Van Wezel 3201999 (H8, PGJ19-1, Valeo version, fits either side); Van Wezel 4327999V (H11, PGJ19-2, supplied with bulb and bulb holder, fits either side); Van Wezel 4327999 (H11, fits either side); TYC 19-12317-01-9 (H8/P13W, fits either side); TYC 19-5922-11-2 (H11, LH); TYC 19-0962-01-2 (HB4, LH) |
|---|---|
| Fog light, driver's side (RH / offside) — aftermarket | TYC 19-5921-11-2 (H11, RH); TYC 19-0961-01-2 (HB4, RH); TYC 19-0585-01-2 (HB4, RH); Van Wezel 5378998 (HB4, P22d, RH); Van Wezel 5136996 (HB4, P22d, RH, with holding frame); Diederichs 6606088 (H11, RH) |
| Bulb types | H8 (PGJ19-1); H11 (PGJ19-2); HB4 (P22d); HB3; LED units |
| Genuine (OE) numbers quoted | None quoted in catalogue listings — order genuine units against your VIN |
| Fitment notes | Most-used pairs are H8, H11 and HB4 depending on trim. No cornering function is mentioned. |
Subaru Impreza Fog Lights: Rarely Used, Easy to Forget About Until Needed
Most Subaru Impreza owners barely use their fog lights outside a handful of days a year, so a fault can sit unnoticed for a long stretch — until a properly foggy morning exposes it at exactly the wrong moment.
Subaru Impreza Fog Lights: What It Does
Front fog lights are angled and positioned to illuminate the road surface in low visibility conditions without creating the glare a standard headlight beam would in fog. Some higher trims of the Impreza integrate fog lights into the same housing as cornering lights or daytime running lights, which affects both the part number and the complexity of any repair.
Subaru Impreza Fog Lights: Watch: Replacing It
2017+ Impreza
Fitment & Compatibility
Subaru Impreza Fog Lights: Generations & Fog Light Type
| Standard trims | Halogen fog light bulb as standard |
|---|---|
| Higher trims, later model years | LED fog lights become available further up the range, genuinely a different assembly and connector from the halogen units on lower trims |
Not every trim level of the Impreza comes with fog lights fitted as standard, and the housing design often differs between trims that have them integrated with other lighting functions and those with a standalone unit. Always confirm your specific trim's fitment before ordering. Whether you're sourcing a replacement fog lights for your Subaru Impreza from a dealer, specialist, or online marketplace, always check compatibility against your registration or VIN before buying, and confirm you're ordering the correct side — driver's side (RH in the UK) or passenger side (LH in the UK) — since these are not interchangeable.
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A Genuinely Useful Diagnostic Technique Worth Knowing — Subaru Impreza Fog Lights
If only one fog light has stopped working while the other works perfectly, this is genuinely worth knowing: this already confirms the switch, main relay, and power reaching the fuses are all functioning correctly, since these are shared between both sides. This narrows a genuine fault down specifically to the bulb, socket, or wiring unique to the non-working side.
It's also genuinely worth knowing that fog lights are designed to work specifically with low beams switched on, not with high beams or daytime running lights alone, unless the car has had aftermarket modifications made.
Subaru Impreza Fog Lights: Common Faults, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Fog Lights Guide for common faults to check for (including exactly what fails an MOT), how easy this job is to DIY, and aftermarket advice.
More Subaru Fog Lights
The same part, covered across other Subaru models.