2003 Chevrolet Silverado 1500 bearing, hub & seal reference — page 4
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
76–100 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 |
|---|---|---|---|---|
| NB111BCA catalogue reference | Transfer Case | 1999–2007Subject to the conditions in this row | Output Shaft Bearing - Rear
| 2021 catalogue Page 119Entry 23b543be |
| NB208BCA catalogue reference | Transfer Case | 1999–2007Subject to the conditions in this row | Output Shaft Bearing - Rear
| 2021 catalogue Page 119Entry 96dc91d1 |
| NBB2110BCA catalogue reference | Transfer Case | 1999–2007Subject to the conditions in this row | Input Shaft Pilot Bearing - 4WD
| 2021 catalogue Page 119Entry 7ab2139a |
| NBB2110BCA catalogue reference | Transfer Case | 2003–2005Subject to the conditions in this row | Input Shaft Pilot Bearing - AWD
| 2021 catalogue Page 117Entry b31e8f3d |
| NBB5020BCA catalogue reference | Transfer Case | 1999–2007Subject to the conditions in this row | Output Shaft Pilot Bearing - Rear
| 2021 catalogue Page 119Entry 6c1a6ae4 |
| NBB5020BCA catalogue reference | Transfer Case | 1999–2007Subject to the conditions in this row | Output Shaft Pilot Bearing - Rear - 4WD
| 2021 catalogue Page 119Entry 6e897ae4 |
| NBB5020BCA catalogue reference | Transfer Case | 2003–2007Subject to the conditions in this row | Output Shaft Pilot Bearing - Rear - 4WD
| 2021 catalogue Page 119Entry 14498f1a |
| NBB5020BCA catalogue reference | Transfer Case | 2003–2005Subject to the conditions in this row | Output Shaft Pilot Bearing - Rear - AWD
| 2021 catalogue Page 117Entry 6835daa7 |
| NBB5020BCA catalogue reference | Transfer Case | 2003–2005Subject to the conditions in this row | Output Shaft Pilot Bearing - Rear - AWD
| 2021 catalogue Page 117Entry f160ecde |
| NBJ2416BCA catalogue reference | Transfer Case | 1999–2007Subject to the conditions in this row | Output Shaft Pilot Bearing - Front
| 2021 catalogue Page 119Entry dfe0f1e6 |
| NBN5210KLBBCA catalogue reference | Transfer Case | 2003–2007Subject to the conditions in this row | Output Shaft Bearing - Rear - 4WD
| 2021 catalogue Page 119Entry 8250b676 |
| NBN5210KLBBCA catalogue reference | Transfer Case | 2003–2005Subject to the conditions in this row | Output Shaft Bearing - Rear - AWD
| 2021 catalogue Page 117Entry abcb8d1b |
| NS341022BCA catalogue reference | Transfer Case | 1999–2007Subject to the conditions in this row | Oil Pump Housing Seal - 4WD
| 2021 catalogue Page 119Entry 1798870d |
| NS341022BCA catalogue reference | Transfer Case | 2003–2005Subject to the conditions in this row | Oil Pump Housing Seal - AWD
| 2021 catalogue Page 117Entry fea42f2a |
| NS710495BCA catalogue reference | Transfer Case | 1999–2007Subject to the conditions in this row | Output Shaft Seal - Front
| 2021 catalogue Page 119Entry c8be8c2b |
| NS710495BCA catalogue reference | Transfer Case | 2003–2007Subject to the conditions in this row | Output Shaft Seal - Front
| 2021 catalogue Page 119Entry 6a9f4b71 |
| NS710496BCA catalogue reference | Transfer Case | 2003–2007Subject to the conditions in this row | Output Shaft Seal - Rear
| 2021 catalogue Page 119Entry cebabc46 |
| NS710597BCA catalogue reference | Transfer Case | 1999–2007Subject to the conditions in this row | Shift Shaft Seal
| 2021 catalogue Page 119Entry 2a3e34d8 |
| NS710597BCA catalogue reference | Transfer Case | 1999–2007Subject to the conditions in this row | Shift Shaft Seal
| 2021 catalogue Page 119Entry 35b6248f |
| NS710597BCA catalogue reference | Transfer Case | 2003–2007Subject to the conditions in this row | Shift Shaft Seal
| 2021 catalogue Page 119Entry 942e5096 |
| NS99139BCA catalogue reference | Transfer Case | 1999–2007Subject to the conditions in this row | Output Shaft Repair Sleeve - Front
| 2021 catalogue Page 119Entry 47f8470a |
| NS99225BCA catalogue reference | Transfer Case | 1999–2007Subject to the conditions in this row | Oil Pump Housing Repair Sleeve - 4WD
| 2021 catalogue Page 119Entry 99357220 |
| NS99225BCA catalogue reference | Transfer Case | 2003–2005Subject to the conditions in this row | Oil Pump Housing Repair Sleeve - AWD
| 2021 catalogue Page 117Entry 640bf4b8 |
| WE60826BCA catalogue reference | Wheel-Front | 2003–2006Subject to the conditions in this row | Bearing and Hub Assembly - 4WD
| 2021 catalogue Page 123Entry 20f2eebf |
| WE60884BCA catalogue reference | Wheel-Front | 2003–2006Subject to the conditions in this row | Bearing and Hub Assembly - 4WD
| 2021 catalogue Page 123Entry 0151f399 |
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.