GENUINE FORD FOCUS MK4 18-2021 FRONT LEFT SIDE LHD FOG LAMP LIGHT JX7B-13B221-DC

Part number JX7B-13B221-DC. We take parts off vehicles every week, and this page is updated with a link straight to the part as soon as another one arrives.

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About part number JX7B-13B221-DC

A fog lamp provides a wide, low beam of light to illuminate the road surface directly ahead of the vehicle during poor visibility, such as heavy fog or mist. Positioned on the front left-hand side of the bumper, it forms part of the exterior lighting system and connects to the main wiring harness and lighting switch. When functioning correctly, it helps the driver see lane markings and road edges clearly without creating glare reflected back by fog.

To confirm that this component is correct for your vehicle, you must check that your original part displays the manufacturer part number JX7B-13B221-DC. This reference number is typically stamped or printed onto the rear plastic housing or the mounting bracket of the unit. Matching this exact number is the only way to guarantee correct fitment and electrical compatibility, so do not rely solely on vehicle models or production years.

A fog lamp is usually replaced due to stone chip damage, a cracked lens, water ingress, or impact damage to the mounting tabs. When fitting a replacement unit, you often require the correct light bulb if one is not included, along with any mounting screws or trim clips that secure the assembly into the front bumper aperture.

About this kind of part: fog lamps

A fog lamp is a small sealed unit set into the lower corner of a front bumper, below the main headlamp. Its beam is wide and flat and cut off sharply at the top, which is what stops it reflecting back off fog, and that pattern is why it cannot be substituted with any other kind of lamp. On many cars the same housing also provides the cornering light that illuminates the direction the wheels are turned, and on some it is a daytime running light as well.

Why people replace one

  • A stone has broken the lens, which is almost inevitable on a lamp mounted this low and this far forward.
  • The housing has cracked or the mounting tabs have snapped in a light knock, because the fog lamp sits exactly where a bumper takes a kerb or a post.
  • Water has got into the unit through a failed seal and the lens mists up or the lamp has corroded internally.
  • The lens has clouded and yellowed from stone blasting and road salt.
  • The lamp has been removed for a bumper repair and the tabs were broken getting it out.

Fitting it

  • Most fog lamps are reached from behind the bumper cover, sometimes through the wheel arch liner and sometimes only with the bumper off.
  • They are held by two or three screws into a carrier, or clipped into a surround that is itself screwed to the bumper.
  • The aim is adjustable on most units and is set low and level. A fog lamp aimed upwards defeats its own purpose and dazzles.
  • The surround or finisher around the lamp is usually a separate part, and it is often what was broken rather than the lamp itself.

Making sure it is the right one

  • Match the part number. Within one model there are commonly a plain fog lamp, one that also provides a cornering light, and a diode version, and they are not interchangeable.
  • Count the connector pins and compare the block with your own lamp. A lamp with extra functions has extra wires.
  • Check the lens marking against your own. It records the approval and the beam type, and a lamp of the wrong type is not a legal substitute.
  • Compare the mounting arrangement: some clip into a surround and some screw to a carrier, and the two cannot be swapped.

What to look for in the photographs

A Part number — On a label or moulded into the back of the housing.
B Lens marking — Etched into the lens: the approval and the beam type. Compare it with the marking on your own lamp.
C Connector — Count the pins. A plain fog lamp, one with a cornering light and a diode unit all differ here.
D Mounting tabs — The tabs or screw bosses that hold the lamp. These snap easily and are the most common hidden fault.
E Lens surface — Look across the lens at an angle. Stone pitting on a lamp this low shows in a raking light and disappears in a flat one.
F Seal and housing — The joint where the lens meets the housing, and the back cover. Water enters where these have been disturbed.

This section describes fog lamps parts in general. The numbers and the photographs above are this part.

Free next-day delivery in the United Kingdom Sent with DPD on a tracked, next-day service. Most mainland addresses are next day; the Highlands and Islands, Northern Ireland, the Channel Islands and the Isle of Man can take a day longer.

Returns Thirty days to change your mind, and we pay the return postage in the United Kingdom and Germany.

Trade and VAT C.E.J Haime Group Limited is VAT registered in England and Wales, and every order comes with a full VAT invoice.

Not sure it is the right part? Send us your registration or VIN and we will check this part number against your own vehicle before you buy.

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