TOYOTA/LEXUS 8122160071 FOG LAMP ASSY
Product Specifications
| TOYOTA/LEXUS | 8122160071 |
| TOYOTA/LEXUS | 8122060071 |
| TOYOTA/LEXUS | 8122160070 |
| TOYOTA/LEXUS | 0LAMPUNITFOG |
| TOYOTA/LEXUS | 8122060070 |
The FOG LAMP ASSY is a front or rear auxiliary lighting assembly mounted low in the front bumper fascia or rear bumper that emits a wide, flat, low-set beam pattern designed to illuminate the road surface immediately ahead of the vehicle in dense fog, heavy rain, or snowfall where the main headlamps would cause forward light scatter back at the driver due to the high water droplet density in the air column. Front fog lamp assemblies use a halogen or LED light source positioned behind a precisely designed reflector and a flat-cut polycarbonate or glass lens whose optical geometry produces a beam with a sharp horizontal upper cutoff that restricts upward light emission — preventing fog scatter back to the driver — while distributing maximum intensity laterally across the road width very close to the vehicle. The low mounting position below the main fog layer maximises the distance between the light source and the fog bank, reducing the scatter effect. Rear fog lamps use a high-intensity red light source visible at the legally required minimum luminous intensity through the fog to mark the vehicle's position to following traffic. On modern vehicles with DRL-integrated or cornering light fog lamp designs, the fog lamp housing may serve multiple functions controlled by the BCM depending on the selected lighting mode.
This unit — TOYOTA/LEXUS 8122160071 — is manufactured to OEM-equivalent specifications: housing mounting bracket geometry and bumper aperture fit, lens outer surface form for correct gap and flush to the bumper fascia, reflector geometry for ECE R19 or R38 beam pattern compliance, bulb holder type and index position or LED driver circuit, wiring connector pinout, and body seal profile are matched to the original part. Supplied as a direct replacement for standard fitment. Available wholesale from 6.73 USD, MOQ 5 pcs, production lead time 20-30 days.
Fog lamp assemblies are damaged primarily through frontal impacts — parking contact, stone chip penetration, and low-speed collision damage that cracks the lens or housing — and through UV lens hazing that reduces light transmission and scatters the beam, defeating the lamp's designed optical performance. The low mounting position in the bumper exposes fog lamps to significantly higher stone chip and debris impact frequency than headlamps. On LED fog lamp assemblies that integrate DRL or cornering functions, LED driver board failure requiring complete assembly replacement is an additional failure mode not present on simple halogen designs.
- Access the fog lamp from behind the bumper fascia by releasing the wheel arch liner clips and pulling the liner back, or by partially removing the bumper lower undertray — most fog lamp assemblies are retained by two or three mounting screws accessible only from the rear of the bumper cavity; never attempt to pull the lamp forward through the aperture from outside as this fractures the mounting tabs and damages the bumper aperture edge.
- Disconnect the wiring connector before unbolting the lamp body — press the connector locking tab fully before pulling straight back; a connector pulled at an angle while partially engaged bends the terminal pins and causes intermittent contact in the new assembly; inspect the connector for water contamination from the failed lamp's moisture ingress before connecting to the new unit.
- Inspect the bumper aperture seal face before fitting the new lamp — a corroded, deformed, or debris-covered seal face will not seal correctly against the new lamp's body seal, allowing water ingress into the new lamp immediately; clean the aperture face and apply a thin bead of butyl tape if the original seal surface is degraded.
- Confirm the replacement lamp is the correct market and side specification before installation — front fog lamps for left-hand-drive and right-hand-drive markets have different beam cutoff angles to ensure the flat beam edge is parallel to the road surface on the appropriate side of the vehicle; fitting the wrong-hand lamp produces a beam aimed at oncoming traffic; also confirm whether the replacement carries the correct ECE approval mark for the vehicle's registration country.
- Adjust the fog lamp vertical aim after installation using the aim adjustment screw on the lamp body — the correct aim angle is stamped on the lamp housing or specified in the vehicle service data; set the aim with the vehicle on a level surface at normal laden height using a fog lamp aim screen or by projecting the beam onto a wall at the specified distance and setting the beam centre height; a fog lamp aimed too high provides no advantage over main headlamps in fog conditions.
- Install the new FOG LAMP ASSY (TOYOTA/LEXUS 8122160071), refit the wheel arch liner and undertray, reconnect the battery if disconnected, activate the fog lamps and confirm the beam pattern is flat-cut and directed correctly across the road surface, and verify no moisture ingress occurs after standing the vehicle in rain or after a car wash before returning the vehicle to service.
| Part | Reason for Combined Replacement |
|---|---|
| Front Bumper Fascia OEM ref. varies by model and year | A stone chip impact or parking contact that cracks the fog lamp lens typically also damages the bumper fascia surface around the lamp aperture. Replacing both the fog lamp and the fascia simultaneously restores the correct gap and flush relationship between the lamp and the bumper and ensures the body seal around the lamp housing is not compromised by a cracked or deformed aperture edge that would allow water ingress into the new lamp. |
| Fog Lamp Bulb H11, H8, or H16 halogen — application-specific | On halogen fog lamp assemblies where the bulb is separately replaceable through an access cover on the rear of the housing, the bulb can be replaced without replacing the complete assembly when the lens and housing are undamaged. Always fit a new bulb of the correct wattage and base type; fitting a higher-wattage bulb than specified generates heat that melts the lens material and discolours the reflector coating within a short operating period. |
| Bumper Body Seal Application-specific adhesive foam or rubber seal | The body seal between the fog lamp housing rear face and the bumper aperture prevents water from entering the bumper cavity through the lamp mounting position. A seal that is compressed, cracked, or partially detached allows water to pool in the bumper cavity and enter the lamp housing through the rear access cover. Replace the body seal simultaneously with the lamp assembly to prevent moisture ingress into the new unit from the first rain event after installation. |