GMC Sierra 2500 HD bearing, hub & seal reference
Look up 135 BCA catalogue entries for GMC Sierra 2500 HD. Compare full part references, component roles and recorded restrictions; confirm current vehicle-specific requirements before use.
Filter by vehicle and component
Searching a vehicle family rather than an exact variant?
Compare the catalogue variants without assuming that their wheel-bearing or hub references are interchangeable. Filter the recorded year and wheel position, then retain the conditions beside each part number.
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 135 reference entries for GMC Sierra 2500 HD. 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 135“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 | 2001–2002Subject to the conditions in this row | Clutch Bearing
| 2021 catalogue Page 257Entry b5fed892 |
| NS2457BCA catalogue reference | Automatic Transmission | 2001–2006Subject to the conditions in this row | Extension Housing Seal - 4L80-E Trans.; Automatic Trans.; 4 Speed Trans
| 2021 catalogue Page 260Entry 8005f328 |
| NS4333NBCA catalogue reference | Automatic Transmission | 2001–2006Subject to the conditions in this row | Extension Housing Seal - 4L80-E Trans.; Automatic Trans.; 4 Speed Trans
| 2021 catalogue Page 260Entry 90cffb09 |
| NS710533BCA catalogue reference | Automatic Transmission | 2007–2014Subject to the conditions in this row | Extension Housing Seal - RWD; 6L90 Trans.; Automatic Trans.; 6 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 260Entry d030468a |
| NS710623BCA catalogue reference | Automatic Transmission | 2001–2003Subject to the conditions in this row | Oil Pump Seal - Front - 1000/M74 Trans.; Automatic Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 259Entry c50cf130 |
| NS710623BCA catalogue reference | Automatic Transmission | 2004–2006Subject to the conditions in this row | Oil Pump Seal - Front - 1000 Trans.; Automatic Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 260Entry 5bbc4ea9 |
| NS710623BCA catalogue reference | Automatic Transmission | 2006–2017Subject to the conditions in this row | Oil Pump Seal - Front - 1000 Trans.; Automatic Trans.; 6 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 260Entry e9ad32d9 |
| NS8792SBCA catalogue reference | Automatic Transmission | 2001–2003Subject to the conditions in this row | Shift Shaft Seal - 1000/M74 Trans.; Automatic Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 259Entry e8a99f6f |
| NS9449BCA catalogue reference | Automatic Transmission | 2001–2003Subject to the conditions in this row | Extension Housing Seal - 4L80-E Trans.; Automatic Trans.; 4 Speed Trans
| 2021 catalogue Page 259Entry eb23ce40 |
| NB382ABCA catalogue reference | Axle | 2001–2018Subject to the conditions in this row | Differential Bearing Race - Rear
| 2021 catalogue Page 265Entry 60878cf7 |
| NB387ASBCA catalogue reference | Axle | 2001–2018Subject to the conditions in this row | Bearing - Rear
| 2021 catalogue Page 265Entry 57b3bd69 |
| NBA42BCA catalogue reference | Axle | 2001–2004Subject to the conditions in this row | Bearing - Front
| 2021 catalogue Page 262Entry 656a6424 |
| NBA42BCA catalogue reference | Axle | 2001–2004Subject to the conditions in this row | Bearing - Rear
| 2021 catalogue Page 262Entry 5c246c6b |
| NBA42BCA catalogue reference | Axle | 2005–2016Subject to the conditions in this row | Bearing - Front
| 2021 catalogue Page 265Entry 69b6d6e0 |
| NBDRK324DBCA catalogue reference | Axle | 2011–2016Subject to the conditions in this row | Differential Bearing and Seal Kit - Front
| 2021 catalogue Page 265Entry d14f0618 |
| NBDRK324DMKBCA catalogue reference | Axle | 2011–2017Subject to the conditions in this row | Differential Bearing and Seal Kit - Front
| 2021 catalogue Page 265Entry 96a4d893 |
| NBDRK327ABCA catalogue reference | Axle | 2011–2016Subject to the conditions in this row | Differential Bearing and Seal Kit - Rear
| 2021 catalogue Page 265Entry 22b1aa4c |
| NBDRK327ABCA catalogue reference | Axle | 2017Subject to the conditions in this row | Differential Bearing and Seal Kit - Rear
| 2021 catalogue Page 265Entry 88bc2baf |
| NBDRK327AMKBCA catalogue reference | Axle | 2011–2016Subject to the conditions in this row | Differential Bearing and Seal Kit - Rear
| 2021 catalogue Page 265Entry 236d3cfd |
| NBDRK327AMKBCA catalogue reference | Axle | 2017Subject to the conditions in this row | Differential Bearing and Seal Kit - Rear
| 2021 catalogue Page 265Entry 98d7ae1a |
| NBDRK327MKBCA catalogue reference | Axle | 2001–2011Subject to the conditions in this row | Differential Bearing and Seal Kit - Rear
| 2021 catalogue Page 264Entry b7e9947e |
| NBRA324BBCA catalogue reference | Axle | 2001–2013Subject to the conditions in this row | Differential Bearing and Seal Kit - Rear
| 2021 catalogue Page 264Entry e5514b0f |
| NBRA324BMKBCA catalogue reference | Axle | 2001–2013Subject to the conditions in this row | Differential Bearing and Seal Kit - Rear
| 2021 catalogue Page 264Entry 1534aea0 |
| NBRA325BBCA catalogue reference | Axle | 2001–2016Subject to the conditions in this row | Differential Bearing and Seal Kit - Rear
| 2021 catalogue Page 265Entry 5c97a786 |
| NBRA325BMKBCA catalogue reference | Axle | 2001–2016Subject to the conditions in this row | Differential Bearing and Seal Kit - Rear
| 2021 catalogue Page 265Entry 4df6dae3 |
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.