black o-ring
for all Amarok 0C7 transfer cases/center differentials
for Touareg with 0BU, 0BV, transfer case/center differential
for Touareg and Q7 with 0AN, 0BP, 0BN rear axle drive - and 0BC (?)
for A1 with 0CN front axle drive
for Cayenne transfer case

it is possible that this o-ring is not requuired for all mentioned applications. This black o-ring does not replace the green o-ring which is used in some applications in the same location.

0C7, Amarok - output shaft to front axle/final drive
0BU, 0BV, transfer case/center differential - Touareg - output shaft to front axle/final drive
0AN, 0BP, 0BN rear axle drive - and 0BC (?), Q7, Touareg - propeller shaft/input shaft to rear axle drive
0CN front axle drive, A1 - input shaft
PL72 - main shaft, front (transfer case)

1

0C7, 0BU, 0BV transfer case / center differential
0CN, 0CP front axle drive
0AN, 0BP, rear axle drive - and 0BC (?)
P72ATC, PL72T
0DL
0F6, ML410