2003 Audi S6 bearing, hub & seal reference
Look up 21 BCA catalogue entries for 2003 Audi S6. Compare full part references, component roles and recorded restrictions; confirm current vehicle-specific requirements before use.
Filter by vehicle and component
What this lookup establishes—and what it does not
Source: BCA 2021 Wheel Hub Assembly, Bearing and Seal Catalog. The loaded entries cover listed model years from 1995 through 2020. This is a historical catalogue reference, not a live VIN decoder or a guarantee for every trim, market or production date.
BCA is an NTN-owned product line. The numbers below remain BCA part references; they are not silently converted into NTN, SKF or another brand's part numbers. Confirm current OEM/service requirements before use.
Which bearing or hub reference applies?
The catalogue contains 21 reference entries for 2003 Audi S6. Select the year and component, then read the full condition and footnote fields. There is no single universal bearing number for every support in this vehicle.
Reference records
1–21 of 21“Bearing”, “hub assembly”, “seal” and “repair sleeve” describe different components. The source description, rather than the catalogue title, determines the role of each number.
On a phone, each record is shown as a complete card with its restrictions. These records do not supply tightening torques or certify a replacement.
| BCA part reference | Component / position | Source model years | Recorded conditions & restrictions | Source trace |
|---|---|---|---|---|
| NB107BCA catalogue reference | Automatic Transmission | 2002–2003Subject to the conditions in this row | Output Shaft Bearing - Left - Automatic Trans.; 5 Speed Trans
| 2021 catalogue Page 18Entry b18550d3 |
| NB32010XBCA catalogue reference | Automatic Transmission | 2002–2003Subject to the conditions in this row | Output Shaft Bearing - Right - 01L Trans.; Automatic Trans.; 5 Speed Trans
| 2021 catalogue Page 18Entry a6ce1c70 |
| NBA5BCA catalogue reference | Automatic Transmission | 2002–2003Subject to the conditions in this row | Idler Gear Bearing - 01L Trans.; Automatic Trans.; 5 Speed Trans
| 2021 catalogue Page 17Entry f7361f21 |
| NBLM300811BCA catalogue reference | Automatic Transmission | 2002–2003Subject to the conditions in this row | Race - Right - Automatic Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 18Entry 73ef47cd |
| NBLM300849BCA catalogue reference | Automatic Transmission | 2002–2003Subject to the conditions in this row | Bearing - Right - Automatic Trans.; 5 Speed Trans
| 2021 catalogue Page 18Entry ff95b84b |
| NBLM806610BCA catalogue reference | Automatic Transmission | 2002–2003Subject to the conditions in this row | Race - Left - Automatic Trans.; 5 Speed Trans
| 2021 catalogue Page 18Entry e9a3df92 |
| NBLM806649BCA catalogue reference | Automatic Transmission | 2002–2003Subject to the conditions in this row | Bearing - Left - 01L Trans.; Automatic Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 18Entry 012a90e2 |
| NBLM806649BCA catalogue reference | Automatic Transmission | 2002–2003Subject to the conditions in this row | Bearing - Left - Automatic Trans.; 5 Speed Trans
| 2021 catalogue Page 18Entry 007b3b5c |
| NBA35BCA catalogue reference | Axle | 2002–2003Subject to the conditions in this row | Bearing - Rear Right
| 2021 catalogue Page 20Entry 1c8e2cc2 |
| NBLM300811BCA catalogue reference | Axle | 2002–2003Subject to the conditions in this row | Differential Bearing Race - Rear Left
| 2021 catalogue Page 20Entry 1583b372 |
| NBLM300849BCA catalogue reference | Axle | 2002–2003Subject to the conditions in this row | Bearing - Rear Left
| 2021 catalogue Page 20Entry 8e76fb6a |
| NS99177BCA catalogue reference | Axle | 2002–2003Subject to the conditions in this row | Differential Repair Sleeve - Rear Right
| 2021 catalogue Page 20Entry abcf41f1 |
| NBBR52BCA catalogue reference | Differential | 2002–2003Subject to the conditions in this row | Pinion Bearing Set - Rear Outer
| 2021 catalogue Page 21Entry 5f5aca13 |
| NBHM801310BCA catalogue reference | Differential | 2002–2003Subject to the conditions in this row | Pinion Race - Rear Inner
| 2021 catalogue Page 21Entry 60aa5199 |
| NBHM801346XBCA catalogue reference | Differential | 2002–2003Subject to the conditions in this row | Pinion Bearing - Rear Inner
| 2021 catalogue Page 21Entry 82fcce60 |
| NBM88010BCA catalogue reference | Differential | 2002–2003Subject to the conditions in this row | Pinion Race - Rear Outer
| 2021 catalogue Page 21Entry 544626f4 |
| NBM88048BCA catalogue reference | Differential | 2002–2003Subject to the conditions in this row | Pinion Bearing - Rear Outer
| 2021 catalogue Page 21Entry 7ba80d3a |
| NS1108BCA catalogue reference | Engine | 2002–2003Subject to the conditions in this row | Crankshaft Seal - Front - 4.2L 4172cc V8No additional numbered footnote is attached to this source row. | 2021 catalogue Page 22Entry f3fe2624 |
| NS3476BCA catalogue reference | Engine | 2002–2003Subject to the conditions in this row | Camshaft Seal - 4.2L 4172cc V8No additional numbered footnote is attached to this source row. | 2021 catalogue Page 22Entry 24515955 |
| WE60673BCA catalogue reference | Wheel-Front | 2002–2003Subject to the conditions in this row | Bearing Kit
| 2021 catalogue Page 26Entry 499a3cc0 |
| WE60673BCA catalogue reference | Wheel-Rear | 2002–2003Subject to the conditions in this row | Bearing Kit
| 2021 catalogue Page 28Entry 0d187548 |
Checks before treating a reference as a replacement
Identify the complete vehicle
Match model year, engine, transmission, driven axle, body and production/VIN limits. A year and model name alone may leave several valid-looking entries.
Match the component role
Distinguish a loose bearing, complete hub, cup/cone, seal and repair sleeve. Check front/rear and inner/outer or left/right position exactly as recorded.
Preserve vehicle-specific interfaces
Confirm encoder/ABS arrangement, flange and spline interfaces, retention and the current service procedure. Do not transfer torque or installation force from an unrelated part.
How to use these results
Does a listed number guarantee fitment for my VIN?
No. These are source-listed catalogue references. Read every restriction and verify the current OEM and manufacturer information for the exact vehicle configuration. Missing VIN or production details remain unknown.
Can I replace a hub using a bearing with the same dimensions?
Not on dimensions alone. The complete assembly, encoder, retention, loading and installation interfaces must agree. The main bearing catalogue and cross-brand comparisons are separate dimensional references, not vehicle approvals.
Where are the axle-nut torque and installation instructions?
This application catalogue does not establish a universal torque or a complete installation sequence. Use the current vehicle-specific service procedure, including fastener reuse rules and staged tightening. Do not infer torque from the bearing number.
Does wheel noise prove that one of these parts has failed?
No. Bearing damage, tyres, brakes and driveline faults can produce overlapping symptoms. A reference lookup identifies candidates; it does not diagnose the cause or prove which side has failed.
Look up an exact source part number
Keep the BCA prefix and full marking. Similar numbers from other manufacturers are not automatically cross-references.
Continue the technical investigation
Source and interpretation limits
Factual reference basis: BCA 2021 Wheel Hub Assembly, Bearing and Seal Catalog, published by BCA Bearings, an NTN product line, with its linked numbered footnote reference. Each row retains its source page and restrictions. Vehicle names shared by one source entry remain associated with that entry; source counts are not quantities for sale.
BearingScope provides independently organized technical lookup and interpretation. It does not sell these parts, provide a repair service, certify current fitment, or claim that an absent result is unavailable from a manufacturer. Original public catalogue files and source fingerprints are retained in the site's verification records.