VKBA3778 Wheel Bearing Kits For MAZDA
The DUHUI Bearing VKBA3778 wheel bearing kit is a front axle hub assembly designed for Mazda MX-5 I (NA), MX-5 II (NB), and Mazda 121 II (DB) models. This comprehensive kit includes a pre-assembled hub unit with integrated ABS sensor ring and securing nut, providing a complete solution for front wheel bearing replacement. It matches OE specifications including NA233304XA, with cross-references to SKF VKBA3778, SNR R170.33, and BLUE PRINT ADM58216.
Technical Specifications
| Specification | Value / Detail |
|---|---|
| DH Code | DBK516 |
| Part Number | VKBA3778 |
| Product Type | Wheel Bearing Kit – Hub Assembly |
| Fitting Position | Front Axle (Left/Right) |
| Kit Contents | 1 Hub Unit with Bearing, 1 Nut |
| Inner Diameter | 32.00 mm (1.260 inch) |
| Outer Diameter | 52.00 mm (2.047 inch) |
| Width | 64.00 mm (2.520 inch) |
| Flange Diameter | 126.00 mm (4.961 inch) |
| Bolt Circle Diameter | 100.00 mm (3.937 inch) |
| Wheel Stud Quantity | 4 |
| ABS Sensor Ring | Integrated |
| Weight | 1.80 kg (3.97 lb) |
Note: Dimensional data is based on SKF and aftermarket manufacturer specifications. Please verify measurements against your original bearing before ordering.
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: DBK516
OE Numbers:
NA233304XA, NA23-33-04XA
Reference Numbers (Interchange):
SKF: VKBA3778
SNR: R170.33
BLUE PRINT: ADM58216
NIPPARTS: J4703016
FAG: 713615690
Vehicle Fitment
MAZDA 121 II (DB): 1.1 1990-1993
MAZDA MX-5 I (NA): 1.6 (NA6C) 1995-1998
MAZDA MX-5 II (NB): 1.6 16V (NB6C) 1998-2005
Please verify OE number, dimensions and vehicle configuration before ordering.
Product Features
- Complete front wheel bearing kit includes a pre-assembled hub unit with bearing and securing nut – all components needed for a full hub replacement on compatible Mazda models.
- Designed specifically for Mazda MX-5 (NA, NB) and 121 II (DB) front axle applications – verified fitment for 1990-2005 model years.
- Integrated ABS sensor ring ensures proper speed signal transmission for vehicles equipped with anti-lock braking systems.
- 4-bolt flange configuration with 126 mm flange diameter and 100 mm bolt circle matches OE specifications for direct fitment.
- Pre-greased and pre-assembled hub unit simplifies installation, requiring no shims or complex adjustments.
- Cross-referenced with SKF VKBA3778, SNR R170.33, and BLUE PRINT ADM58216 – confirmed interchange available.
Installation Notes
- Verify the kit contents match your original bearing before installation – confirm inner diameter (32.00 mm) and outer diameter (52.00 mm).
- This kit is designed for front axle fitment on compatible Mazda models – confirm placement before ordering.
- The hub assembly is pre-assembled with integrated bearing and ABS sensor ring – handle with care to avoid contamination or damage to the bearing surfaces.
- For vehicles with ABS, ensure the integrated sensor ring is correctly positioned during installation.
- Torque the securing nut and wheel bolts to Mazda service manual specifications for the DB/NA/NB chassis.
About DUHUI Bearing
Manufactured by DUHUI Bearing – an automotive bearing supplier established in Zhejiang, China, in 2003. DUHUI produces wheel bearing kits and automotive components to OE specifications. Contact us
