2003 GMC C7500 Topkick All wheel positions bearing reference
Look up 31 BCA catalogue entries for 2003 GMC C7500 Topkick — All wheel positions. 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 31 reference entries for 2003 GMC C7500 Topkick in All wheel positions. 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 31“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 |
|---|---|---|---|---|
| NB6420BCA catalogue reference | Wheel-Front Inner | 1997–2003Subject to the conditions in this row | Bearing Race
| 2021 catalogue Page 298Entry be2d3b9c |
| NB6461ABCA catalogue reference | Wheel-Front Inner | 1997–2003Subject to the conditions in this row | Bearing
| 2021 catalogue Page 298Entry b3441dbe |
| NBJM207010BCA catalogue reference | Wheel-Front Inner | 2003–2009Subject to the conditions in this row | Bearing Race
| 2021 catalogue Page 299Entry 248f81fd |
| NBJM207049ABCA catalogue reference | Wheel-Front Inner | 2003–2009Subject to the conditions in this row | Bearing
| 2021 catalogue Page 299Entry 22caca1d |
| NBSET413BCA catalogue reference | Wheel-Front Inner | 2003–2007Subject to the conditions in this row | Bearing and Race Set - 4 X 2
| 2021 catalogue Page 298Entry 2dcdd86c |
| NS370001ABCA catalogue reference | Wheel-Front Inner | 2003–2009Subject to the conditions in this row | Seal
| 2021 catalogue Page 299Entry 3a819c6f |
| NS370150ABCA catalogue reference | Wheel-Front Inner | 2003–2009Subject to the conditions in this row | Seal
| 2021 catalogue Page 299Entry 76185420 |
| NB25820BCA catalogue reference | Wheel-Front Outer | 2003Subject to the conditions in this row | Bearing Race
| 2021 catalogue Page 300Entry 2a795bb9 |
| NB25877BCA catalogue reference | Wheel-Front Outer | 2003Subject to the conditions in this row | Bearing
| 2021 catalogue Page 300Entry 0f941e34 |
| NB3720BCA catalogue reference | Wheel-Front Outer | 2003Subject to the conditions in this row | Bearing Race
| 2021 catalogue Page 300Entry fb57a6bb |
| NB3782BCA catalogue reference | Wheel-Front Outer | 2003Subject to the conditions in this row | Bearing
| 2021 catalogue Page 300Entry 1a567aea |
| NB552ABCA catalogue reference | Wheel-Front Outer | 1997–2003Subject to the conditions in this row | Bearing Race
| 2021 catalogue Page 300Entry 09970430 |
| NB557SBCA catalogue reference | Wheel-Front Outer | 1997–2003Subject to the conditions in this row | Bearing
| 2021 catalogue Page 300Entry d111fe02 |
| NBHD205BCA catalogue reference | Wheel-Front Outer | 2003Subject to the conditions in this row | Bearing and Race Set - 4 X 2
| 2021 catalogue Page 300Entry d9c6118b |
| NBSET321BCA catalogue reference | Wheel-Front Outer | 2003–2007Subject to the conditions in this row | Bearing and Race Set - 4 X 2
| 2021 catalogue Page 301Entry e219ed44 |
| NBSET406BCA catalogue reference | Wheel-Front Outer | 2003–2009Subject to the conditions in this row | Bearing and Race Set - 4 X 2
| 2021 catalogue Page 301Entry fa1f7d82 |
| NB47620BCA catalogue reference | Wheel-Rear Inner | 1997–2003Subject to the conditions in this row | Bearing Race
| 2021 catalogue Page 305Entry 4d287e73 |
| NB47686BCA catalogue reference | Wheel-Rear Inner | 1997–2003Subject to the conditions in this row | Bearing
| 2021 catalogue Page 305Entry 2ff1e705 |
| NB594ABCA catalogue reference | Wheel-Rear Inner | 1997–2003Subject to the conditions in this row | Bearing
| 2021 catalogue Page 305Entry 0d4a77a5 |
| NBHD203BCA catalogue reference | Wheel-Rear Inner | 2003Subject to the conditions in this row | Bearing and Race Set - 4 X 2
| 2021 catalogue Page 305Entry 4ce65872 |
| NBHD209BCA catalogue reference | Wheel-Rear Inner | 2003Subject to the conditions in this row | Bearing and Race Set - 4 X 2
| 2021 catalogue Page 305Entry bbab5e0a |
| NBSET411BCA catalogue reference | Wheel-Rear Inner | 2003Subject to the conditions in this row | Bearing and Race Set - 4 X 2
| 2021 catalogue Page 305Entry 05e631fd |
| NS370023ABCA catalogue reference | Wheel-Rear Inner | 1997–2009Subject to the conditions in this row | Seal
| 2021 catalogue Page 306Entry 36114364 |
| NB3920BCA catalogue reference | Wheel-Rear Outer | 1998–2009Subject to the conditions in this row | Bearing Race
| 2021 catalogue Page 308Entry 8f6f7685 |
| NB39520BCA catalogue reference | Wheel-Rear Outer | 1997–2003Subject to the conditions in this row | Bearing Race
| 2021 catalogue Page 308Entry ca385271 |
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.