2004 BMW 645Ci bearing, hub & seal reference
Look up 13 BCA catalogue entries for 2004 BMW 645Ci. 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 13 reference entries for 2004 BMW 645Ci. 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
1–13 of 13“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 | 2004–2005Subject 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 33c589c0 |
| WE61445BCA catalogue reference | Automatic Transmission | 2004Subject to the conditions in this row | Output Shaft Bearing - A6HP26Z Trans.; Automatic Trans.; 6 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 33Entry 3aa6ad5e |
| NBJLM104910BCA catalogue reference | Axle | 2004–2005Subject to the conditions in this row | Differential Bearing Race - Rear
| 2021 catalogue Page 35Entry cc4609d0 |
| NBJLM104948BCA catalogue reference | Axle | 2004–2005Subject to the conditions in this row | Bearing - Rear
| 2021 catalogue Page 35Entry bdc0b7df |
| NBJLM1049481BCA catalogue reference | Axle | 2004–2005Subject to the conditions in this row | Bearing - Rear
| 2021 catalogue Page 35Entry 77a0fa75 |
| NBHM803110BCA catalogue reference | Differential | 2004–2005Subject to the conditions in this row | Pinion Race - Rear Inner
| 2021 catalogue Page 39Entry b8c45165 |
| NBHM803149BCA catalogue reference | Differential | 2004–2005Subject to the conditions in this row | Pinion Bearing - Rear Inner
| 2021 catalogue Page 39Entry caec3d69 |
| NS223520BCA catalogue reference | Differential | 2004–2005Subject to the conditions in this row | Pinion Seal - Rear Outer
| 2021 catalogue Page 39Entry 16cab343 |
| NS99139BCA catalogue reference | Differential | 2004–2005Subject to the conditions in this row | Pinion Repair Sleeve - Rear Outer
| 2021 catalogue Page 39Entry 4655758f |
| NB106CCBCA catalogue reference | Drive Shaft | 2004–2005Subject to the conditions in this row | Center Support Bearing
| 2021 catalogue Page 40Entry 8e1e909e |
| NS231003BCA catalogue reference | Engine | 2004–2005Subject to the conditions in this row | Crankshaft Seal - Rear - 4.4L 4398cc V8No additional numbered footnote is attached to this source row. | 2021 catalogue Page 43Entry 43295c28 |
| WE60642BCA catalogue reference | Wheel-Front | 2004–2005Subject to the conditions in this row | Bearing and Hub AssemblyNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 49Entry 89c730da |
| WE60910BCA catalogue reference | Wheel-Rear | 2004–2005Subject to the conditions in this row | Bearing Assembly
| 2021 catalogue Page 51Entry 190cfb13 |
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.