Porsche 911 bearing, hub & seal reference — page 2
Look up 87 BCA catalogue entries for Porsche 911. 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 87 reference entries for Porsche 911. 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
26–50 of 87“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 |
|---|---|---|---|---|
| NS99177BCA catalogue reference | Automatic Transmission | 1999–2003Subject to the conditions in this row | Torque Converter Repair Sleeve - 5HP19HL TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 516Entry 6c71f7a9 |
| NB30210BCA catalogue reference | Axle | 1995–2005Subject to the conditions in this row | Bearing - Front Left
| 2021 catalogue Page 517Entry 299a837a |
| NB32010XBCA catalogue reference | Axle | 1995–2005Subject to the conditions in this row | Bearing - Front Right - AWD
| 2021 catalogue Page 517Entry 885771b1 |
| NBBR52BCA catalogue reference | Differential | 1995–2003Subject to the conditions in this row | Pinion Bearing Set - Front Inner
| 2021 catalogue Page 517Entry 1854061d |
| NBBR52BCA catalogue reference | Differential | 2004–2005Subject to the conditions in this row | Pinion Bearing Set - Front Inner - AWD
| 2021 catalogue Page 517Entry a16be1ed |
| NBHM89410BCA catalogue reference | Differential | 1995–2003Subject to the conditions in this row | Pinion Race - Front Outer
| 2021 catalogue Page 517Entry 3830668d |
| NBHM89410BCA catalogue reference | Differential | 2004–2005Subject to the conditions in this row | Pinion Race - Front Outer - AWD
| 2021 catalogue Page 517Entry 307b393f |
| NBHM89449BCA catalogue reference | Differential | 1995–2005Subject to the conditions in this row | Pinion Bearing - Front Outer
| 2021 catalogue Page 517Entry a42246eb |
| NBM88010BCA catalogue reference | Differential | 1995–2003Subject to the conditions in this row | Pinion Race - Front Inner
| 2021 catalogue Page 517Entry 183d0df2 |
| NBM88010BCA catalogue reference | Differential | 2004–2005Subject to the conditions in this row | Pinion Race - Front Inner - AWD
| 2021 catalogue Page 517Entry ee7b312e |
| NBM88048BCA catalogue reference | Differential | 1995–2003Subject to the conditions in this row | Pinion Bearing - Front Inner
| 2021 catalogue Page 517Entry 235172b2 |
| NBM88048BCA catalogue reference | Differential | 2004–2005Subject to the conditions in this row | Pinion Bearing - Front Inner - AWD
| 2021 catalogue Page 517Entry ca8dc3e2 |
| NS223050BCA catalogue reference | Engine | 1995Subject to the conditions in this row | Crankshaft Seal - Front - 3.6L 3606cc H6
| 2021 catalogue Page 517Entry 1a1f666c |
| NS223050BCA catalogue reference | Engine | 1996–1997Subject to the conditions in this row | Crankshaft Seal - Front - 3.6L 3606cc H6, VIN “C”
| 2021 catalogue Page 517Entry 9ad9768c |
| NS223050BCA catalogue reference | Engine | 1998Subject to the conditions in this row | Crankshaft Seal - Front - 3.6L 3606cc H6No additional numbered footnote is attached to this source row. | 2021 catalogue Page 517Entry a930cf4b |
| NS223050BCA catalogue reference | Engine | 2001–2005Subject to the conditions in this row | Crankshaft Seal - Front - 3.6L 3606cc H6
| 2021 catalogue Page 517Entry 6f977cc2 |
| NS223050BCA catalogue reference | Engine | 2002–2005Subject to the conditions in this row | Crankshaft Seal - Front - 3.6L 3596cc H6
| 2021 catalogue Page 517Entry 39d7e38b |
| NS223050BCA catalogue reference | Engine | 2003Subject to the conditions in this row | Crankshaft Seal - Front - 3.6L 3596cc 219cid H6
| 2021 catalogue Page 517Entry 5a2abc2e |
| NS223050BCA catalogue reference | Engine | 2005Subject to the conditions in this row | Crankshaft Seal - Front - 3.8L 3824cc H6
| 2021 catalogue Page 517Entry b45baabb |
| NS229005BCA catalogue reference | Engine | 1995–1998Subject to the conditions in this row | Crankshaft Seal - Rear - 3.6L 3606cc H6No additional numbered footnote is attached to this source row. | 2021 catalogue Page 517Entry 958bf41c |
| NS229005BCA catalogue reference | Engine | 2001–2005Subject to the conditions in this row | Crankshaft Seal - Rear - 3.6L 3606cc H6No additional numbered footnote is attached to this source row. | 2021 catalogue Page 517Entry fd25e6b4 |
| NS99353BCA catalogue reference | Engine | 1995–1997Subject to the conditions in this row | Crankshaft Repair Sleeve - RearNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 517Entry 27678233 |
| NS99353BCA catalogue reference | Engine | 1998Subject to the conditions in this row | Crankshaft Repair Sleeve - Rear - 3.6L 3606cc H6No additional numbered footnote is attached to this source row. | 2021 catalogue Page 517Entry 8f5a5645 |
| NS99353BCA catalogue reference | Engine | 2001–2005Subject to the conditions in this row | Crankshaft Repair Sleeve - Rear - 3.6L 3606cc H6No additional numbered footnote is attached to this source row. | 2021 catalogue Page 517Entry 1cea8d75 |
| NS99353BCA catalogue reference | Engine | 2003Subject to the conditions in this row | Crankshaft Repair Sleeve - Rear - 3.6L 3596cc 219cid H6No additional numbered footnote is attached to this source row. | 2021 catalogue Page 517Entry c5198873 |
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.