Ford S-Max Titanium Rear Bumper Diffuser E1GJ-17E956-A Genuine

Part number E1GJ-17E956-A. 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 E1GJ-17E956-A

A rear bumper diffuser is an exterior trim panel fitted to the underside of the rear bumper. As part of the vehicle bodywork, it sits between the lower edge of the bumper and the underbody structure, helping to tidy the appearance of the rear end and manage airflow as it exits underneath the car. When it is fitted correctly and undamaged, the driver will notice a clean, complete rear profile with no loose trim panels hanging down or rattling while driving.

To confirm that this part is correct for your vehicle, you must check that the part number stamped into your original unit matches E1GJ-17E956-A exactly. On plastic trim sections like this, the manufacturer code is typically moulded directly into the plastic on the inner or rear surface, which is hidden from view once installed. Matching this specific reference is the only way to guarantee correct fitment, as minor shape variations exist across different vehicle specifications.

These lower trim panels are usually replaced after sustaining impact damage from high kerbs, road debris, or low-speed rear collisions. When replacing this component, you will commonly need fresh plastic mounting clips or retaining screws to secure it firmly to the main bumper assembly, as the original fasteners often snap or corrode during removal.

About this kind of part: bumper trims and diffusers

A bumper trim is one of the separate strips and panels that clip or screw onto a bumper cover rather than forming part of it: a lower blade, a diffuser insert at the rear, a corner section, a splitter under the front edge, or the finisher around a fog lamp. They are usually gloss black, textured black or a bright finish, and they carry most of the model's styling, so they change between trim levels and across a facelift while the bumper cover underneath them stays the same part.

Why people replace one

  • The trim has grounded on a kerb, a ramp or a speed hump, which is what happens to anything mounted below the bumper line.
  • A clip has snapped and the trim now stands away from the bumper at one end.
  • The gloss black finish has gone grey and dull, or the bright finish has lifted, and it cannot be brought back.
  • Stone chipping along the leading edge has broken through the finish.
  • The bumper cover has been replaced and the original trim was broken getting it off.

Fitting it

  • Most clip to the bumper cover from the front and are then secured by screws or plastic nuts reached from behind or underneath.
  • The clips are usually separate parts and are worth replacing rather than reusing, because they stretch once they have been off.
  • Work along the trim from one end rather than pulling in the middle, which is where a cold strip cracks.
  • Where the trim surrounds a fog lamp or a sensor, check the aperture lines up before everything is tightened.

Making sure it is the right one

  • Match the part number on the back. These parts carry the styling, so a trim from a different version of the same model will often clip on and still look wrong.
  • Check whether yours has openings for parking sensors. A trim with no openings cannot be used on a car that has them.
  • Compare the finish as well as the shape. The same trim is made in gloss black, in textured black and in a bright finish, and each is a separate number.
  • Count the clip positions and the screw points, and compare their spacing with the part you are taking off.

What to look for in the photographs

A Part number — Moulded into the back face, usually towards one end.
B Sensor openings — Openings for parking sensors, where the trim sits across a sensor line. Their presence or absence decides whether it fits your car.
C Clips and screw points — The clip seats and threaded points along the back. Count them and look for any that are broken out.
D Lower edge — The bottom face, which grounds on kerbs and ramps. Look along it rather than at it, because this is what a straight-on photograph flatters most.
E Finish — Gloss black, textured black or a bright finish. The finish is part of what you are matching, not a detail.
F End profile — The shape where the trim meets the bumper and the arch. This is what tells one side from the other and a facelift from the version before it.

This section describes bumper trims and diffusers 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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