Mazda B4000 Automatic & manual transmission bearing reference
Look up 23 BCA catalogue entries for Mazda B4000 — Automatic & manual transmission. 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 23 reference entries for Mazda B4000 in Automatic & manual transmission. 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
1–23 of 23“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 |
|---|---|---|---|---|
| NS2655BCA catalogue reference | Automatic Transmission | 1995–1996Subject to the conditions in this row | Extension Housing Seal - 4R55E Trans.; Automatic Trans.; 4 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 412Entry ec1b261c |
| NS2655BCA catalogue reference | Automatic Transmission | 1995Subject to the conditions in this row | Extension Housing Seal - A4LD Trans.; Automatic Trans.; 4 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 412Entry 7313e600 |
| NS2655BCA catalogue reference | Automatic Transmission | 1997–2003Subject to the conditions in this row | Extension Housing Seal - 5R55E Trans.; Automatic Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 413Entry f718506a |
| NS2655BCA catalogue reference | Automatic Transmission | 2005–2010Subject to the conditions in this row | Extension Housing Seal - 5R55E Trans.; Automatic Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 413Entry c3da30e5 |
| NS2658VBCA catalogue reference | Automatic Transmission | 1995Subject to the conditions in this row | Oil Pump Seal - Front - A4LD Trans.; Automatic Trans.; 4 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 412Entry 1d7c48fa |
| NS2658VBCA catalogue reference | Automatic Transmission | 1996Subject to the conditions in this row | Oil Pump Seal - Front - 4R55E Trans.; Automatic Trans.; 4 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 412Entry afe716eb |
| NS710535BCA catalogue reference | Automatic Transmission | 1997–2003Subject to the conditions in this row | Oil Pump Seal - Front - 5R55E Trans.; Automatic Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 413Entry d86a3ed6 |
| NS710535BCA catalogue reference | Automatic Transmission | 2005–2010Subject to the conditions in this row | Oil Pump Seal - Front - 5R55E Trans.; Automatic Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 413Entry d46e1845 |
| NS7929SBCA catalogue reference | Automatic Transmission | 1995Subject to the conditions in this row | Shift Shaft Seal - A4LD Trans.; Automatic Trans.; 4 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 412Entry 2d8aaf80 |
| NS7929SBCA catalogue reference | Automatic Transmission | 1997Subject to the conditions in this row | Shift Shaft Seal - 5R55E Trans.; Automatic Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 412Entry acb7f381 |
| NS7929SBCA catalogue reference | Automatic Transmission | 1999–2003Subject to the conditions in this row | Shift Shaft Seal - 5R55E Trans.; Automatic Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 413Entry 34fe7209 |
| NS7929SBCA catalogue reference | Automatic Transmission | 2006–2008Subject to the conditions in this row | Shift Shaft Seal - 5R55E Trans.; Automatic Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 413Entry fbcfbaf1 |
| NB304BCA catalogue reference | Manual Transmission | 1995–2002Subject to the conditions in this row | Countershaft Bearing - Rear - M5R1 Trans.; Manual Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 420Entry 01ad9ffd |
| NB304BCA catalogue reference | Manual Transmission | 2003Subject to the conditions in this row | Countershaft Bearing - Rear - M5R1HD Trans.; Manual Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 421Entry adaf987a |
| NB304BCA catalogue reference | Manual Transmission | 2004–2005Subject to the conditions in this row | Countershaft Bearing - Rear - Manual Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 421Entry 26828a75 |
| NB304BCA catalogue reference | Manual Transmission | 2006–2009Subject to the conditions in this row | Countershaft Bearing - Rear - M5R1HD Trans.; Manual Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 421Entry fba085b1 |
| NS1981BCA catalogue reference | Manual Transmission | 1995–2002Subject to the conditions in this row | Output Shaft Seal - M5R1 Trans.; Manual Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 420Entry 3a9cae7f |
| NS1981BCA catalogue reference | Manual Transmission | 2003Subject to the conditions in this row | Output Shaft Seal - M5R1HD Trans.; Manual Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 421Entry 77a1c54e |
| NS1981BCA catalogue reference | Manual Transmission | 2006–2009Subject to the conditions in this row | Output Shaft Seal - M5R1HD Trans.; Manual Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 421Entry 278cf3a3 |
| NS1990BCA catalogue reference | Manual Transmission | 1995–2002Subject to the conditions in this row | Input Shaft Seal - M5R1 Trans.; Manual Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 420Entry c927b691 |
| NS1990BCA catalogue reference | Manual Transmission | 2003Subject to the conditions in this row | Input Shaft Seal - M5R1HD Trans.; Manual Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 421Entry 559acdbd |
| NS1990BCA catalogue reference | Manual Transmission | 2004–2005Subject to the conditions in this row | Input Shaft Seal - Manual Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 421Entry 8c2e5b73 |
| NS1990BCA catalogue reference | Manual Transmission | 2006–2009Subject to the conditions in this row | Input Shaft Seal - M5R1HD Trans.; Manual Trans.; 5 Speed TransNo additional numbered footnote is attached to this source row. | 2021 catalogue Page 421Entry 0af6a5a1 |
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.