Engine Undertray

4.2 V8 32v FSI - 444 bhp
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BryRS4
Neutral
Posts: 1
Joined: Tue Feb 03, 2026 7:57 am

Engine Undertray

Post by BryRS4 » Tue Feb 03, 2026 8:38 am

Hi everyone c:

Recently my front plastic belly tray partially came off on the motorway and has disintegrated while it was dragging on the ground.

I can't seem to find the part number for a replacement as all the google searches come up with the A4/S4 trays without the ducting which goes into the brakes.

Or does anyone have an image of their whole tray intact that I can see so I can get an idea on how feasible it is to fabricate one out of aluminium or stainless steel.

Thanks c:
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JamesBaby
3rd Gear
Posts: 299
Joined: Tue Jan 29, 2019 5:26 pm

Re: Engine Undertray

Post by JamesBaby » Wed Feb 11, 2026 11:20 am

According to LL Parts The part number is 8K2863821E for the front section, and 8K2863822Q for the rear section.

Other associated parts can be seen on this link to LLL Parts:
https://www.lllparts.co.uk/catalogs/aud ... 863/863025

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