Wheel Hub B45A3304X

The DUHUI Bearing B45A3304X wheel hub is a direct OE-replacement assembly designed for Mazda 3 (BM, BN) models from 2013 through 2019 and Mazda CX-3 (DK) models from 2015 onward. This front wheel hub bearing matches OE references including B45A-33-04X, BJS7-33-04X, and BPM5-33-04XA. It features a Gen 3 hub unit design with 5 wheel studs, a 138.80 mm outer diameter, and an integrated magnetic ABS sensor ring, engineered for front axle applications on these compact car and crossover SUV platforms.
Specifications
| Parameter | Value |
|---|---|
| DH Code | DWH0516 |
| Part Number | B45A3304X |
| Position | Front Axle (Left, Right) |
| Bearing Generation | Gen 3 Hub Assembly |
| Bearing Type | Angular Ball Bearing |
| Inner Diameter | 29.00 mm (1.142 inch) |
| Outer Diameter | 138.80 mm (5.465 inch) |
| Outer Diameter 1 | 90.90 mm (3.579 inch) |
| Outer Diameter 2 | 67.90 mm (2.673 inch) |
| Width 2 | 42.70 mm (1.681 inch) |
| Flange Diameter | 139.00 mm (5.472 inch) |
| Rim Hole Number | 5 |
| ABS Sensor | Integrated Magnetic Sensor Ring |
| ABS Ring Teeth | 96 |
| Pre-Greased | Yes |
| Warranty | 2 years / 50,000km |
Important: All information on this page is for reference only. Please verify OE numbers, dimensions, and vehicle fitment against your original part before ordering. Contact us for fitment confirmation.
DH Code & OE Numbers & Reference Numbers
DH Code: DWH0516
OE Numbers: B45A-33-04X, BJS7-33-04X, BPM5-33-04XA, BKC6-33-04X
Reference Numbers (Interchange):
SKF: VKBA7705
FAG: 713615980
SNR: R170.68
FEBI BILSTEIN: 174780
BLUE PRINT: ADBP820033
HERTH+BUSS JAKOPARTS: J4703046
NIPPARTS: N4703047
MOOG: MDWB12885
TIMKEN: HA590523
BTA: H13036BTA
JAPANPARTS: KK13031
OPTIMAL: 911211
NK: 753232
METZGER: WM 7705
Dorman: 951-192
Vehicle Fitment
MAZDA: 3 (BM, BN) (2013-2019) 1.5, 1.6, 2.0, 2.2 D, including Hatchback and Saloon, 3 Box Body / Hatchback (BM) (2015-2016), CX-3 (DK) (2015-) 1.5 SKYACTIV-D, 2.0 SKYACTIV-G
Please verify OE number, dimensions and vehicle configuration before ordering.
Product Features
- Gen 3 hub assembly combines the bearing, flange, and magnetic ABS sensor ring into one pre-assembled unit for simplified front axle installation on Mazda 3 BM/BN and CX-3 DK platforms.
- Integrated magnetic sensor ring with 96 teeth provides accurate wheel speed data to the ABS system.
- 138.80 mm outer diameter and 29.00 mm inner diameter match the original bearing envelope on Mazda 3 and CX-3 front axles.
- 5-hole rim pattern and 139.00 mm flange diameter match the OEM wheel mounting configuration.
- Angular ball bearing design provides stable load distribution for front axle applications on these compact platforms.
- Pre-greased and sealed bearing unit requires no additional maintenance after installation.
- Cross-references to SKF VKBA7705, FAG 713615980, SNR R170.68, and FEBI BILSTEIN 174780 ensure accurate replacement sourcing.
Installation Notes
- This hub is for front axle applications on Mazda 3 (BM, BN) (2013-2019) and Mazda CX-3 (DK) (2015-) models with front ABS.
- Confirm the 5-hole rim pattern and 138.80 mm outer diameter match your vehicle mounting configuration.
- Clean the axle spindle and mounting surface thoroughly before installation.
- Torque the axle nut and wheel bolts to Mazda service manual specifications for the respective platform.
- Keep the hub away from strong magnetic sources before installation, as this hub includes an integrated magnetic encoder ring.
About DUHUI Bearing
Manufactured by DUHUI Bearing – an automotive bearing supplier established in Zhejiang, China, in 2003. DUHUI produces wheel hub bearings to OE specifications. Contact us

