1999 GMC Sierra 2500 bearing, hub & seal reference — page 2
Look up 70 BCA catalogue entries for 1999 GMC Sierra 2500. 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 70 reference entries for 1999 GMC Sierra 2500. 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
26–50 of 70“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 |
|---|---|---|---|---|
| NBHM903249BCA catalogue reference | Differential | 1999–2004Subject to the conditions in this row | Pinion Bearing - Rear Inner
| 2021 catalogue Page 271Entry 0ad883b2 |
| NBJLM506811BCA catalogue reference | Differential | 1999–2004Subject to the conditions in this row | Carrier Bearing Race - Rear
| 2021 catalogue Page 271Entry abbf9d38 |
| NBJLM506849ABCA catalogue reference | Differential | 1999–2001Subject to the conditions in this row | Carrier Bearing - Rear
| 2021 catalogue Page 270Entry 442b6f28 |
| NBM802011BCA catalogue reference | Differential | 1999–2003Subject to the conditions in this row | Pinion Race - Rear Outer
| 2021 catalogue Page 271Entry 3a3213b6 |
| NBM802048BCA catalogue reference | Differential | 1999–2003Subject to the conditions in this row | Pinion Bearing - Rear Outer
| 2021 catalogue Page 271Entry 8f8ab72f |
| NBR1581TVBCA catalogue reference | Differential | 1999–2004Subject to the conditions in this row | Pinion Pilot Bearing - Rear
| 2021 catalogue Page 271Entry bf2bacda |
| NS710507BCA catalogue reference | Differential | 1999–2004Subject to the conditions in this row | Pinion Seal - Rear Outer
| 2021 catalogue Page 271Entry 940222ad |
| NS710508BCA catalogue reference | Differential | 1999–2004Subject to the conditions in this row | Pinion Seal - Rear Outer
| 2021 catalogue Page 271Entry 580d5a18 |
| NS710536BCA catalogue reference | Differential | 1999–2004Subject to the conditions in this row | Pinion Seal - Front Outer
| 2021 catalogue Page 271Entry c126af40 |
| NBB2410BCA catalogue reference | Drive Axle | 1999–2004Subject to the conditions in this row | Shaft Bearing - Front Outer
| 2021 catalogue Page 278Entry bd9c7efd |
| NBB2610BCA catalogue reference | Drive Axle | 1999–2004Subject to the conditions in this row | Shaft Bearing - Front Inner
| 2021 catalogue Page 278Entry 8467a5c4 |
| NBRP1561GMBCA catalogue reference | Drive Axle | 1999–2004Subject to the conditions in this row | Shaft Repair Bearing - RearNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 278Entry 48ee5bb0 |
| NBSCH78BCA catalogue reference | Drive Axle | 1999–2004Subject to the conditions in this row | Shaft Pilot Bearing - Front
| 2021 catalogue Page 278Entry 4e7735ff |
| NS710497BCA catalogue reference | Drive Axle | 1999–2004Subject to the conditions in this row | Shaft Seal - Front Inner
| 2021 catalogue Page 278Entry d4c87cb0 |
| NB88107BCA catalogue reference | Drive Shaft | 1999–2004Subject to the conditions in this row | Center Support Bearing
| 2021 catalogue Page 280Entry 7ae00b90 |
| NBHB88107ABCA catalogue reference | Drive Shaft | 1999–2004Subject to the conditions in this row | Center Support Bearing
| 2021 catalogue Page 280Entry ed1969d0 |
| NBHB88107EBCA catalogue reference | Drive Shaft | 1999–2004Subject to the conditions in this row | Center Support Bearing
| 2021 catalogue Page 280Entry b6813e94 |
| NBHB88508ABBCA catalogue reference | Drive Shaft | 1999–2000Subject to the conditions in this row | Center Support Bearing
| 2021 catalogue Page 280Entry 4a6566e4 |
| NBHB88515BCA catalogue reference | Drive Shaft | 1999–2004Subject to the conditions in this row | Center Support Bearing
| 2021 catalogue Page 280Entry e87052f2 |
| NBHB88540BCA catalogue reference | Drive Shaft | 1999–2004Subject to the conditions in this row | Center Support Bearing
| 2021 catalogue Page 280Entry a5202135 |
| NS100085BCA catalogue reference | Engine | 1999–2004Subject 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 283Entry 5c02ec46 |
| NS100470BCA catalogue reference | Engine | 1999–2004Subject 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 283Entry 90b551ef |
| NBA35BCA catalogue reference | Manual Transmission | 1999–2003Subject to the conditions in this row | Countershaft Bearing - Rear - NV4500/MW3 Trans.; Manual Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 287Entry 5ddcf4df |
| NBB5020BCA catalogue reference | Manual Transmission | 1999–2004Subject to the conditions in this row | Extension Housing Bearing - RWD; Manual Trans.; 5 Speed Trans
| 2021 catalogue Page 287Entry befcb671 |
| NBLM102910BCA catalogue reference | Manual Transmission | 1999–2003Subject to the conditions in this row | Countershaft Race - Front - NV4500/MW3 Trans.; Manual Trans.; 5 Speed Trans
| 2021 catalogue Page 287Entry 9a7444e2 |
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.