Wheel Hub 512221
The 512221 wheel hub assembly from DUHUI Bearing provides a direct-fit replacement for the rear axle of select GM W-body and U-body vehicles manufactured between 2000 and 2005, including Buick Century/Regal, Chevrolet Impala/Monte Carlo, and Pontiac Aztek/Grand Prix models with Non-ABS configuration and rear disc brakes where specified. This complete hub assembly is pre-assembled for simplified installation. This kit matches OE specifications including 12413029 and 512221, and interchanges with industry-standard references such as Timken 512221, SKF BR930295, and Moog RW8221.
Technical Specifications
| Specification | Value / Detail |
|---|---|
| DH Code | DWH1129 |
| Part Number | 512221 |
| Product Type | Wheel Hub Assembly |
| Installation Location | Rear Axle |
| Kit Contents | Hub × 1 |
| Flange Diameter | 150.60 mm (5.929 inch) |
| Bolt Circle Diameter | 115.00 mm (4.528 inch) |
| Wheel Pilot Diameter | 70.10 mm (2.760 inch) |
| Brake Pilot Diameter | 70.60 mm (2.780 inch) |
| Flange Offset | 65.00 mm (2.559 inch) |
| Hub Pilot Diameter | 71.90 mm (2.831 inch) |
| Hub Bolt Circle Diameter | 50.30 mm (1.980 inch) |
| Bolt Size | M12 × 1.5 |
| Wheel Stud Quantity | 5 |
| Bolt Hole MET | 11.94 mm |
| Flange Bolt Hole Quantity | 4 |
| Flange Shape | Rectangular |
| ABS Sensor | Without sensor (Non-ABS) |
| Number of Splines | N/A |
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:
DWH1129
OE Numbers:
12413029
Reference Numbers (Interchange):
Timken: 512221
SKF: BR930295
Moog: RW8221
Vehicle Fitment
BUICK CENTURY: 2004–2005 (Non-ABS)
BUICK REGAL: 2003–2004 (Non-ABS, Rear Disc Brakes for 2003)
CHEVROLET IMPALA: 2000–2005 (Non-ABS, Rear Disc Brakes for 2000–2001)
CHEVROLET MONTE CARLO: 2000–2005 (Non-ABS, Rear Disc Brakes for 2000–2001)
PONTIAC AZTEK: 2003–2005 (FWD, Non-ABS)
PONTIAC GRAND PRIX: 2003–2008 (Non-ABS)
All applications: Rear Axle, Non-ABS. Please verify OE number, dimensions and vehicle configuration before ordering.
Product Features
- Direct OE replacement for GM W-body and U-body platform applications with Non-ABS. Matches OE specification 12413029.
- Non-ABS configuration – designed for vehicles without rear ABS sensor.
- Rectangular flange with 4-bolt attachment provides secure installation.
- 5-bolt wheel mounting pattern provides secure attachment.
- Pre-set, pre-lubricated, and sealed – maintenance-free design.
- Fully assembled kit – no additional components required for installation.
Installation Notes
- Verify your vehicle does NOT have ABS before installation. This hub is Non-ABS configuration.
- Before installation, compare the flange diameter (150.60 mm) and bolt pattern against your original hub.
- Confirm the 5-bolt wheel pattern and 4-bolt rectangular flange match your vehicle.
- Torque the hub mounting bolts and wheel nuts to GM specification.
- This hub fits both rear driver and passenger sides. Sold individually.
About DUHUI Bearing
Manufactured by DUHUI Bearing – an automotive bearing supplier established in Zhejiang, China, in 2003. DUHUI produces wheel hub assemblies, center support bearings, and related components to OE specifications. Contact us
