2004 Chevrolet Silverado 1500 bearing, hub & seal reference
Look up 125 BCA catalogue entries for 2004 Chevrolet Silverado 1500. 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 125 reference entries for 2004 Chevrolet Silverado 1500. 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 125“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 |
|---|---|---|---|---|
| NS4950BCA catalogue reference | Automatic Transmission | 1999–2013Subject 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 74Entry 5b9f1272 |
| NBA36BCA catalogue reference | Axle | 1999–2009Subject to the conditions in this row | Bearing - Rear
| 2021 catalogue Page 79Entry e02d104f |
| NBA42BCA catalogue reference | Axle | 2001–2016Subject to the conditions in this row | Bearing - Rear
| 2021 catalogue Page 80Entry b749904f |
| NBA50BCA catalogue reference | Axle | 2002–2005Subject to the conditions in this row | Bearing - Rear
| 2021 catalogue Page 78Entry 659d16bc |
| NBDRK321JBCA catalogue reference | Axle | 1999–2017Subject to the conditions in this row | Differential Bearing and Seal Kit - Front
| 2021 catalogue Page 81Entry 1e85008b |
| NBDRK321JMKBCA catalogue reference | Axle | 1999–2017Subject to the conditions in this row | Differential Bearing and Seal Kit - Front
| 2021 catalogue Page 81Entry 15c4ca48 |
| NBDRK321KBCA catalogue reference | Axle | 2000–2008Subject to the conditions in this row | Differential Bearing and Seal Kit - Rear
| 2021 catalogue Page 79Entry 682d3034 |
| NBLM501314BCA catalogue reference | Axle | 2004–2018Subject to the conditions in this row | Differential Bearing Race - Front - 4WD
| 2021 catalogue Page 81Entry 9e4697e7 |
| NBLM501314BCA catalogue reference | Axle | 2004–2005Subject to the conditions in this row | Differential Bearing Race - Front - AWD
| 2021 catalogue Page 78Entry e6d18a06 |
| NBLM501349BCA catalogue reference | Axle | 2004–2018Subject to the conditions in this row | Bearing - Front - 4WD
| 2021 catalogue Page 81Entry 551de424 |
| NBLM501349BCA catalogue reference | Axle | 2004–2005Subject to the conditions in this row | Bearing - Front - AWD
| 2021 catalogue Page 78Entry 22c5e0c9 |
| NBRA321CBCA catalogue reference | Axle | 2000–2008Subject to the conditions in this row | Differential Bearing and Seal Kit - Rear
| 2021 catalogue Page 79Entry bcd9464d |
| NBRA321CMKBCA catalogue reference | Axle | 2000–2008Subject to the conditions in this row | Differential Bearing and Seal Kit - Rear
| 2021 catalogue Page 79Entry 1e3ed1b5 |
| NBRA321TBCA catalogue reference | Axle | 1999–2017Subject to the conditions in this row | Differential Bearing and Seal Kit - Front
| 2021 catalogue Page 81Entry 31f813b6 |
| NBRA321TMKBCA catalogue reference | Axle | 1999–2017Subject to the conditions in this row | Differential Bearing and Seal Kit - Front
| 2021 catalogue Page 81Entry 776aa270 |
| NBRA324BBCA catalogue reference | Axle | 1999–2013Subject to the conditions in this row | Differential Bearing and Seal Kit - Rear
| 2021 catalogue Page 80Entry 312b4625 |
| NBRA324BMKBCA catalogue reference | Axle | 1999–2013Subject to the conditions in this row | Differential Bearing and Seal Kit - Rear
| 2021 catalogue Page 80Entry 5b740a7a |
| NB614174BCA catalogue reference | Clutch | 1999–2007Subject to the conditions in this row | Release Bearing - 4.3L 262cid V6
| 2021 catalogue Page 83Entry d7232d78 |
| NB614174BCA catalogue reference | Clutch | 1999–2007Subject to the conditions in this row | Release Bearing - 4.8L 294cid V8
| 2021 catalogue Page 83Entry 55dbfb08 |
| NBBR52BCA catalogue reference | Differential | 2004–2018Subject to the conditions in this row | Pinion Bearing Set - Front Outer - 4WD
| 2021 catalogue Page 93Entry a3a21fbe |
| NBBR52BCA catalogue reference | Differential | 2004–2005Subject to the conditions in this row | Pinion Bearing Set - Front Outer - AWD
| 2021 catalogue Page 89Entry 6c09399b |
| NBBR52BCA catalogue reference | Differential | 2004–2018Subject to the conditions in this row | Pinion Bearing Set - Rear Outer
| 2021 catalogue Page 93Entry 00183aaf |
| NBHM803110BCA catalogue reference | Differential | 2002–2005Subject to the conditions in this row | Pinion Race - Rear Inner
| 2021 catalogue Page 89Entry a89cc607 |
| NBHM803146BCA catalogue reference | Differential | 2002–2005Subject to the conditions in this row | Pinion Bearing - Rear Inner
| 2021 catalogue Page 89Entry d7f3b807 |
| NBHM804810BCA catalogue reference | Differential | 2001–2016Subject to the conditions in this row | Pinion Race - Rear Inner
| 2021 catalogue Page 93Entry d1edb4c5 |
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.