4KQ Hubs: Front vs. Rears and bearing sizes

spectrum specproto at yahoo.com
Thu Dec 18 04:22:27 PST 2008

There are a few differences aside from the bearings.
The front rotos are slightly larger diameter and vented, the rears smaller and solid. 
Also, the offset of the rotor is different.
The front hubs are unique to the 4k quattro and non quattro. The rear hubs interchange with the 80q/90q/Cq and I _think_ the 100q
What is it that you are trying to swap?

--- On Wed, 12/17/08, L DC <ldc007usa at yahoo.com> wrote:

From: L DC <ldc007usa at yahoo.com>
Subject: Re: 4KQ Hubs: Front vs. Rears and bearing sizes
To: quattro at audifans.com, specproto at yahoo.com
Date: Wednesday, December 17, 2008, 6:20 PM

Thank you all for your responses.

For Todd:

spectrum <specproto at yahoo.com> wrote:

> The info below for the fronts is correct.

Todd, do you mean the front and rear rotors are the same but the wheel bearings
are different size due to their respective housings in the strut?

> The rear bearing is a 75mm bearing. The part number however
> doesn't look familiar.

Are the front bearings 68mm?

> Either way, they won't interchange.

Meaning front hubs are different than rear hubs or simply the bearings are
different size?

> todd

Louis DC <ldc007usa at yahoo.com> wrote:

Hi all,
Are the rear hubs and wheel bearings on the Audi 4KQ the same as the
A search on AutohausAZ.com for the 4KQ's front wheel bearings revealed a
68mm size with part #s 321498625D and 823407625B.
As for the rear wheel bearing, it showed a part # 33411130617.

Thank you in advance
Louis DC

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