2003 Chevrolet Silverado 1500 bearing, hub & seal reference — page 3
Look up 108 BCA catalogue entries for 2003 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 108 reference entries for 2003 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
51–75 of 108“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 |
|---|---|---|---|---|
| NBHB88508ABCA catalogue reference | Drive Shaft | 2001–2006Subject to the conditions in this row | Center Support Bearing
| 2021 catalogue Page 98Entry 7315f097 |
| NBHB88515BCA catalogue reference | Drive Shaft | 1999–2007Subject to the conditions in this row | Center Support Bearing
| 2021 catalogue Page 98Entry 14e312ad |
| NBHB88532BCA catalogue reference | Drive Shaft | 1999–2007Subject to the conditions in this row | Center Support Bearing
| 2021 catalogue Page 98Entry f88fae17 |
| NBHB88540BCA catalogue reference | Drive Shaft | 1999–2007Subject to the conditions in this row | Center Support Bearing
| 2021 catalogue Page 98Entry f3690659 |
| NS100085BCA catalogue reference | Engine | 1999–2013Subject to the conditions in this row | Crankshaft Seal - Rear - 4.8L 294cid V8No additional numbered footnote is attached to this source row. | 2021 catalogue Page 105Entry ff3a6ee7 |
| NS100085BCA catalogue reference | Engine | 2003–2013Subject to the conditions in this row | Crankshaft Seal - Rear - 6.0L 5967cc 364cid V8No additional numbered footnote is attached to this source row. | 2021 catalogue Page 105Entry 58b4b6ad |
| NS100470BCA catalogue reference | Engine | 1999–2012Subject to the conditions in this row | Crankshaft Seal - Front - 4.8L 294cid V8No additional numbered footnote is attached to this source row. | 2021 catalogue Page 105Entry ffd32b40 |
| NS100470BCA catalogue reference | Engine | 2003–2012Subject to the conditions in this row | Crankshaft Seal - Front - 6.0L 5967cc 364cid V8No additional numbered footnote is attached to this source row. | 2021 catalogue Page 105Entry 069b5e54 |
| NS5512BCA catalogue reference | Engine | 1999–2016Subject to the conditions in this row | Crankshaft Seal - Rear - 4.3L 262cid V6
| 2021 catalogue Page 106Entry afc77aa1 |
| NB307FFL5BCA catalogue reference | Manual Transmission | 1999–2003Subject to the conditions in this row | Input Shaft Bearing - NV3500/MG5 Trans.; Manual Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 109Entry e8357c78 |
| NBA35BCA catalogue reference | Manual Transmission | 2002–2006Subject to the conditions in this row | Countershaft Bearing - Rear - Manual Trans.; 5 Speed Trans
| 2021 catalogue Page 110Entry 2f10911a |
| NBB5020BCA catalogue reference | Manual Transmission | 2002–2006Subject to the conditions in this row | Extension Housing Bearing - RWD; Manual Trans.; 5 Speed Trans
| 2021 catalogue Page 110Entry 5eac8b41 |
| NBLM102910BCA catalogue reference | Manual Transmission | 2002–2003Subject to the conditions in this row | Countershaft Race - Front - NV3500/MG5 Trans.; Manual Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 110Entry 8588910c |
| NBLM102949BCA catalogue reference | Manual Transmission | 2002–2003Subject to the conditions in this row | Countershaft Bearing - Front - NV3500/MG5 Trans.; Manual Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 110Entry b6fd5df8 |
| NBM804010BCA catalogue reference | Manual Transmission | 2002–2006Subject to the conditions in this row | Output Shaft Race - Manual Trans.; 5 Speed Trans
| 2021 catalogue Page 110Entry bdd3596c |
| NBM804049BCA catalogue reference | Manual Transmission | 2002–2003Subject to the conditions in this row | Output Shaft Bearing - NV3500/MG5 Trans.; Manual Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 110Entry a7543e3b |
| NS4528NBCA catalogue reference | Manual Transmission | 1999–2006Subject to the conditions in this row | Output Shaft Seal - RWD; Manual Trans.; 5 Speed Trans
| 2021 catalogue Page 110Entry abbb1613 |
| NS4529NBCA catalogue reference | Manual Transmission | 1999–2006Subject to the conditions in this row | Input Shaft Seal - Manual Trans.; 5 Speed Trans
| 2021 catalogue Page 110Entry d22c8de1 |
| NS4532NBCA catalogue reference | Manual Transmission | 1999–2006Subject to the conditions in this row | Output Shaft Seal - 4WD; Manual Trans.; 5 Speed Trans
| 2021 catalogue Page 110Entry 1263a8a0 |
| NS4638NBCA catalogue reference | Manual Transmission | 2002–2006Subject to the conditions in this row | Input Shaft Seal - Manual Trans.; 5 Speed Trans
| 2021 catalogue Page 110Entry da7a3b32 |
| NB110BCA catalogue reference | Transfer Case | 1999–2007Subject to the conditions in this row | Output Shaft Bearing - Front
| 2021 catalogue Page 119Entry 095a1015 |
| NB110BCA catalogue reference | Transfer Case | 1999–2007Subject to the conditions in this row | Output Shaft Bearing - Front
| 2021 catalogue Page 119Entry e866177c |
| NB110BCA catalogue reference | Transfer Case | 2003–2007Subject to the conditions in this row | Input Shaft Bearing
| 2021 catalogue Page 119Entry 2c2aeb6c |
| NB110BCA catalogue reference | Transfer Case | 2003–2007Subject to the conditions in this row | Output Shaft Bearing - Front
| 2021 catalogue Page 119Entry c8788d13 |
| NB110LBCA catalogue reference | Transfer Case | 1999–2007Subject to the conditions in this row | Input Shaft Bearing
| 2021 catalogue Page 119Entry 2a7a843c |
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.