URO Parts WHT005184 Fuel Pump O-Ring

Worked as it should

Good quality and it does work with the Audi S4, S5, A6, A7, Q7, etc 3.0 supercharged engine's fuel pump.

this fits as it should on the gas pump, but not sure why the part (cams follower) itself does not come with this o-ring.

I've purchased this o-ring before from reputable parts stores that wouldn't sell anything of low quality, but it is extremely easy to ruin this product. I've installed and oiled the o-ring prior to reinstall the high pressure fuel pump on a 2010 (b8) audi a4 w/ CAEB engine, tightened the mounting bolts evenly, and this STILL gets caught on the edge and tears. after replacement of the HPFP - ALWAYS have extra of these around. any time that pump comes off, a new o ring should go on. i've had one on for less than 1000 miles and besides being torn from install (rough idle results), it was also hard as a rock when i tried to replace it. the replacement (from amazon) began to tear as soon as it was installed, after being liberally oiled. time will tell if this works, but i wrapped the oring in place w/ PTFE tape so that it wouldn't get caught on the lip of the vac pump cam follower housing. the idle definitely sounded better than when i had the torn oring in there.

This is the exact fit I needed! Works great for b7 Audi a4

Perfect fit

Perfect fit replacement for 2007 Audi A4 (B7)

Worked as expected!