2005-2006 Audi A8 Axle Differential / Diff Rear 01R500046K
OEM Part #: 01R-500-046-K (01R500046K)
Actual photo
The exact part you’ll receive — not a stock photo.
$427.00
Side: Rear
Used
Donor2005 Audi A8 · 6.0L
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Genuine OEM Used
SKU: 681733
Donor Vehicle: 2005 Audi A8 · 6.0L
4 photos
$427.00
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Audi rear axle differential, OEM part number 01R500046K – a used genuine unit from a donor vehicle. This diff (also replaces 01R500046F and 01R500044Q) is designed for the 6.0L W12 in the Audi A8 Quattro. The rear differential distributes torque between the rear wheels while allowing them to turn at different speeds; a failing unit may produce a whining noise or cause vibration during turns.
Specifications
| Fits Vehicle Model | A8 |
| Fits Vehicle Make | Audi |
| OEM Part No | 01R-500-046-K (01R500046K) |
| Compatible OEM Part No | 01R-500-046-F, 01R-500-044-Q |
| Side | Rear |
| Category | Differential |
Compatible Vehicles
Fits 2 vehicle configurations across 1 make, 2005-2006.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 2 vehicle configurations — 2 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2005 | Audi | A8 | Quattro L Sedan | 6.0L W12 | For Vehicles with Differential Code(s) HCL, HWA |
| 2006 | Audi | A8 | Quattro L Sedan | 6.0L W12 | For Vehicles Where Last 6 Digits of VIN Number are Less Than 009300; For Vehicles with Differential Code(s) HCL, HWA |