BMW 550i bearing, hub & seal reference
Look up 18 BCA catalogue entries for BMW 550i. 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 18 reference entries for BMW 550i. 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
1–18 of 18“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 |
|---|---|---|---|---|
| NS224510BCA catalogue reference | Automatic Transmission | 2006–2007Subject to the conditions in this row | Oil Pump Seal - Front - A6HP26Z Trans.; Automatic Trans.; 6 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 33Entry 57fb95c4 |
| NS224510BCA catalogue reference | Automatic Transmission | 2008–2010Subject to the conditions in this row | Oil Pump Seal - Front - GA6HP26Z Trans.; Automatic Trans.; 6 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 34Entry fda1b5c5 |
| WE61445BCA catalogue reference | Automatic Transmission | 2006–2010Subject to the conditions in this row | Output Shaft Bearing - Automatic Trans.; 6 Speed Trans
| 2021 catalogue Page 34Entry 1eee1425 |
| NBJLM104910BCA catalogue reference | Axle | 2006–2009Subject to the conditions in this row | Differential Bearing Race - Rear
| 2021 catalogue Page 36Entry 5614049f |
| NBJLM104948BCA catalogue reference | Axle | 2006–2009Subject to the conditions in this row | Bearing - Rear
| 2021 catalogue Page 36Entry a14b9942 |
| NBJLM1049481BCA catalogue reference | Axle | 2006–2009Subject to the conditions in this row | Bearing - Rear
| 2021 catalogue Page 36Entry a183d285 |
| NBHM803110BCA catalogue reference | Differential | 2006–2009Subject to the conditions in this row | Pinion Race - Rear Inner
| 2021 catalogue Page 39Entry ae88f742 |
| NBHM803149BCA catalogue reference | Differential | 2006–2009Subject to the conditions in this row | Pinion Bearing - Rear Inner
| 2021 catalogue Page 39Entry 9bb353af |
| NS223520BCA catalogue reference | Differential | 2006–2009Subject to the conditions in this row | Pinion Seal - Rear Outer
| 2021 catalogue Page 39Entry 378bda4f |
| NS99139BCA catalogue reference | Differential | 2006–2009Subject to the conditions in this row | Pinion Repair Sleeve - Rear Outer
| 2021 catalogue Page 39Entry 62dc0b46 |
| NB106CCBCA catalogue reference | Drive Shaft | 2006–2016Subject to the conditions in this row | Center Support Bearing
| 2021 catalogue Page 41Entry 69ae31cd |
| NS231003BCA catalogue reference | Engine | 2006–2009Subject to the conditions in this row | Crankshaft Seal - Rear - 4.8L 4799cc V8No additional numbered footnote is attached to this source row. | 2021 catalogue Page 44Entry 43c9be6c |
| NS231003BCA catalogue reference | Engine | 2006–2010Subject to the conditions in this row | Crankshaft Seal - Rear - 4.8L 4837cc V8No additional numbered footnote is attached to this source row. | 2021 catalogue Page 44Entry bb59837e |
| NS231003BCA catalogue reference | Engine | 2010Subject to the conditions in this row | Crankshaft Seal - Rear - 4.8L 4799cc 293cid V8No additional numbered footnote is attached to this source row. | 2021 catalogue Page 44Entry 6c82533f |
| WE60642BCA catalogue reference | Wheel-Front | 2006–2010Subject to the conditions in this row | Bearing and Hub AssemblyNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 49Entry 27c45f94 |
| WE60828BCA catalogue reference | Wheel-Rear | 2006–2010Subject to the conditions in this row | Bearing Assembly
| 2021 catalogue Page 51Entry be14aa58 |
| WE61271BCA catalogue reference | Wheel-Rear | 2011–2015Subject to the conditions in this row | Bearing Assembly
| 2021 catalogue Page 52Entry 667c0917 |
| WE61271BCA catalogue reference | Wheel-Rear | 2016Subject to the conditions in this row | Bearing AssemblyNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 52Entry 921c3f05 |
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.