Buick Roadmaster bearing, hub & seal reference
Look up 29 BCA catalogue entries for Buick Roadmaster. 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 29 reference entries for Buick Roadmaster. 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 29“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 |
|---|---|---|---|---|
| NB907257BCA catalogue reference | A/C Compressor | 1995–1996Subject to the conditions in this row | Clutch Bearing
| 2021 catalogue Page 52Entry a5b7a8d3 |
| NS4950BCA catalogue reference | Automatic Transmission | 1995–1996Subject to the conditions in this row | Oil Pump Seal - Front - 4L60-E Trans.; Automatic Trans.; 4 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 53Entry ad90b62f |
| NS8792SBCA catalogue reference | Automatic Transmission | 1995–1996Subject to the conditions in this row | Shift Shaft Seal - 4L60-E Trans.; Automatic Trans.; 4 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 53Entry a010f174 |
| NBLM501314BCA catalogue reference | Axle | 1995–1996Subject to the conditions in this row | Differential Bearing Race - Rear
| 2021 catalogue Page 55Entry b527a793 |
| NBLM501349BCA catalogue reference | Axle | 1995–1996Subject to the conditions in this row | Bearing - Rear
| 2021 catalogue Page 55Entry 75afc4ce |
| NBRA320BCA catalogue reference | Axle | 1995–1996Subject to the conditions in this row | Differential Bearing and Seal Kit - Rear
| 2021 catalogue Page 55Entry afcbab6d |
| NBRA320MKBCA catalogue reference | Axle | 1995–1996Subject to the conditions in this row | Differential Bearing and Seal Kit - Rear
| 2021 catalogue Page 55Entry 6f873893 |
| NBBR52BCA catalogue reference | Differential | 1995–1996Subject to the conditions in this row | Pinion Bearing Set - Rear Outer
| 2021 catalogue Page 55Entry 8d85d9bb |
| NBM802011BCA catalogue reference | Differential | 1995–1996Subject to the conditions in this row | Pinion Race - Rear Inner
| 2021 catalogue Page 55Entry eb12579b |
| NBM802048BCA catalogue reference | Differential | 1995–1996Subject to the conditions in this row | Pinion Bearing - Rear Inner
| 2021 catalogue Page 55Entry fce04756 |
| NBM88010BCA catalogue reference | Differential | 1995–1996Subject to the conditions in this row | Pinion Race - Rear Outer
| 2021 catalogue Page 55Entry 43e18830 |
| NBM88048BCA catalogue reference | Differential | 1995–1996Subject to the conditions in this row | Pinion Bearing - Rear Outer
| 2021 catalogue Page 55Entry 28c9ed85 |
| NS2043BCA catalogue reference | Differential | 1995–1996Subject to the conditions in this row | Pinion Seal - Rear Outer
| 2021 catalogue Page 55Entry 3dee3885 |
| NBRP5707BCA catalogue reference | Drive Axle | 1995–1996Subject to the conditions in this row | Shaft Repair Bearing - Rear - SedanNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 55Entry 4e63e9f5 |
| NBRP6408BCA catalogue reference | Drive Axle | 1995–1996Subject to the conditions in this row | Shaft Repair Bearing - Rear - WagonNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 55Entry 3ebfa4e1 |
| NS4359VBCA catalogue reference | Engine | 1995–1996Subject to the conditions in this row | Crankshaft Seal - Rear - 5.7L 350cid V8
| 2021 catalogue Page 56Entry 2f471185 |
| NS5000BCA catalogue reference | Engine | 1995–1996Subject to the conditions in this row | Timing Cover Harmonic Balancer Sleeve KitNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 56Entry 27193328 |
| NS9845BCA catalogue reference | Engine | 1995–1996Subject to the conditions in this row | Crankshaft Seal - Front - 5.7L 350cid V8No additional numbered footnote is attached to this source row. | 2021 catalogue Page 56Entry c574e691 |
| NS99364BCA catalogue reference | Engine | 1995–1996Subject to the conditions in this row | Crankshaft Repair Sleeve - RearNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 56Entry 963ea435 |
| NS100058BCA catalogue reference | Ignition | 1996Subject to the conditions in this row | Distributor Seal - 5.7L 350cid V8No additional numbered footnote is attached to this source row. | 2021 catalogue Page 57Entry 7e0b03ff |
| NS7013SBCA catalogue reference | Power Steering | 1995–1996Subject to the conditions in this row | Power Steering Pump Shaft SealNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 57Entry b4cfa9e6 |
| NS222025BCA catalogue reference | Steering | 1995–1996Subject to the conditions in this row | Gear Worm Shaft Seal - Power SteeringNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 57Entry 9be404e2 |
| NBA6BCA catalogue reference | Wheel-Front Inner | 1995–1996Subject to the conditions in this row | Bearing and Race SetNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 58Entry 163d05d7 |
| NS4739BCA catalogue reference | Wheel-Front Inner | 1995–1996Subject to the conditions in this row | SealNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 58Entry d8125bd1 |
| NBA3BCA catalogue reference | Wheel-Front Outer | 1995–1996Subject to the conditions in this row | Bearing and Race SetNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 58Entry 00703761 |
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.