BMW X3 bearing, hub & seal reference
Look up 42 BCA catalogue entries for BMW X3. 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 42 reference entries for BMW X3. 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
1–25 of 42“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 | 2007Subject to the conditions in this row | Oil Pump Seal - Front - GA6-L45R Trans.; Automatic Trans.; 6 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 33Entry afc6e521 |
| NS224510BCA catalogue reference | Automatic Transmission | 2008Subject to the conditions in this row | Oil Pump Seal - Front - 6L45 Trans.; Automatic Trans.; 6 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 33Entry 81a995e5 |
| NS224510BCA catalogue reference | Automatic Transmission | 2009–2010Subject to the conditions in this row | Oil Pump Seal - Front - GA6-L45R Trans.; Automatic Trans.; 6 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 34Entry d0f7072e |
| NS224510BCA catalogue reference | Automatic Transmission | 2010Subject to the conditions in this row | Oil Pump Seal - Front - 6L45 Trans.; Automatic Trans.; 6 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 34Entry cb445a76 |
| NBLM503310BCA catalogue reference | Axle | 2004–2009Subject to the conditions in this row | Differential Bearing Race - Rear
| 2021 catalogue Page 36Entry 359309cb |
| NBLM503349ABCA catalogue reference | Axle | 2004–2009Subject to the conditions in this row | Bearing - Rear
| 2021 catalogue Page 36Entry d91f9228 |
| NS473823BCA catalogue reference | Axle | 2004–2009Subject to the conditions in this row | Differential Seal - Rear
| 2021 catalogue Page 36Entry 9c44eaa9 |
| NS99139BCA catalogue reference | Axle | 2004–2009Subject to the conditions in this row | Differential Repair Sleeve - Rear
| 2021 catalogue Page 36Entry 2c2e925f |
| NBHM88510BCA catalogue reference | Differential | 2004–2009Subject to the conditions in this row | Pinion Race - Rear Outer
| 2021 catalogue Page 39Entry c8bab990 |
| NBHM88542BCA catalogue reference | Differential | 2004–2009Subject to the conditions in this row | Pinion Bearing - Rear Outer
| 2021 catalogue Page 39Entry f0af9931 |
| NBHM89410BCA catalogue reference | Differential | 2004–2009Subject to the conditions in this row | Pinion Race - Rear Inner
| 2021 catalogue Page 39Entry e9ca0c1b |
| NBHM89449BCA catalogue reference | Differential | 2004–2009Subject to the conditions in this row | Pinion Bearing - Rear Inner
| 2021 catalogue Page 39Entry 82fb0ac8 |
| NS1979BCA catalogue reference | Differential | 2004–2009Subject to the conditions in this row | Pinion Seal - Rear Outer
| 2021 catalogue Page 39Entry b0b04546 |
| NS99177BCA catalogue reference | Differential | 2004–2009Subject to the conditions in this row | Pinion Repair Sleeve - Rear Outer
| 2021 catalogue Page 39Entry 36dc452b |
| NB106CCBCA catalogue reference | Drive Shaft | 2004–2016Subject to the conditions in this row | Center Support Bearing
| 2021 catalogue Page 41Entry 37d8d746 |
| NB106CCBCA catalogue reference | Drive Shaft | 2017Subject to the conditions in this row | Center Support Bearing
| 2021 catalogue Page 41Entry 7130c48e |
| NS223802BCA catalogue reference | Engine | 2004–2005Subject to the conditions in this row | Auxiliary Shaft Seal - 2.5L 2494cc 152cid L6No additional numbered footnote is attached to this source row. | 2021 catalogue Page 43Entry 5d44281e |
| NS223802BCA catalogue reference | Engine | 2004–2006Subject to the conditions in this row | Auxiliary Shaft Seal - 3.0L 2979cc L6No additional numbered footnote is attached to this source row. | 2021 catalogue Page 43Entry acdded35 |
| NS229005BCA catalogue reference | Engine | 2004–2009Subject to the conditions in this row | Crankshaft Seal - Rear - 2.5L 2494cc 152cid L6No additional numbered footnote is attached to this source row. | 2021 catalogue Page 44Entry 27c40e70 |
| NS229005BCA catalogue reference | Engine | 2004–2006Subject to the conditions in this row | Crankshaft Seal - Rear - 3.0L 2979cc L6No additional numbered footnote is attached to this source row. | 2021 catalogue Page 43Entry b77123f3 |
| NS99353BCA catalogue reference | Engine | 2004–2009Subject to the conditions in this row | Crankshaft Repair Sleeve - RearNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 44Entry a9b4f46b |
| NS99353BCA catalogue reference | Engine | 2010–2011Subject to the conditions in this row | Crankshaft Repair Sleeve - Rear - 3.0L 2996cc L6No additional numbered footnote is attached to this source row. | 2021 catalogue Page 44Entry 6500b5d8 |
| NS99353BCA catalogue reference | Engine | 2011–2017Subject to the conditions in this row | Crankshaft Repair Sleeve - Rear - 3.0L 2979cc L6No additional numbered footnote is attached to this source row. | 2021 catalogue Page 45Entry 8346bdf5 |
| NS99353BCA catalogue reference | Engine | 2012Subject to the conditions in this row | Crankshaft Repair Sleeve - Rear - 3.0L 2996cc L6, N52B30A EngNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 44Entry 8c4de41c |
| NS99353BCA catalogue reference | Engine | 2013–2017Subject to the conditions in this row | Crankshaft Repair Sleeve - Rear - 2.0L 1997cc 122cid L4No additional numbered footnote is attached to this source row. | 2021 catalogue Page 45Entry a4eca7cd |
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.