HB4019A Center Support Bearing For CHEVROLET GMC
This HB4019A center support bearing (also known as a carrier bearing or hanger bearing) provides a direct-fit replacement for the driveshaft of select Chevrolet and GMC trucks and vans. It supports the driveshaft at the center point, reduces driveline vibration, and protects universal joints from premature wear. This bearing matches OE specifications including GM part number 88936353.
Technical Specifications
| Specification | Value / Detail |
|---|---|
| DH Code | |
| Part Number | HB4019A |
| Bearing Type | Center Support Bearing |
| Bore (Inside Diameter) | 1.575″ / 40.00 mm |
| Centerline Height | 2.230″ / 56.64 mm |
| Hole Spacing (Center to Center) | 6.610″ / 167.89 mm |
| Bolt Hole | 0.50″ X 0.57″ |
| Mount Type | w/ cushion retainer |
| Package Dimensions | 6.32 x 2.57 x 9.57 inches |
| Package Weight | 2.04 lb / 0.93 kg |
| UPC | 053893776521 |
The bearing bore of 1.575 inches (40.00 mm) is the critical fitment spec for this bearing—this determines whether the bearing seats properly on your driveshaft. The hole spacing of 6.610 inches (167.89 mm) determines whether the bracket aligns with your vehicle’s chassis mounting points. This bearing is supplied with a cushion retainer and includes one gasket for installation.
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 Number & Reference Numbers
DH Code:
OE Numbers:
HB4019A, 88936353, HB88505, HB108D
Reference Numbers (Interchange):
Timken: HB4019A
SKF: HB88505
National: HB-88505
GM: 88936353
Vehicle Fitment
CHEVROLET: 2000–2006
GMC: 2000–2006
Fitment note: This bearing fits select 2000-2006 Chevrolet and GMC models. Please verify OE number, dimensions and vehicle configuration before ordering.
Product Features
- Direct OE replacement. This bearing matches GM OE specification 88936353 for select Chevrolet and GMC vehicles.
- With cushion retainer. Includes a cushion retainer for proper bearing positioning and secure installation.
- Precision-engineered fitment. Features a 1.575″ bore diameter and 6.610″ hole spacing for exact vehicle compatibility.
- Gasket included. Supplied with one gasket for a complete installation.
- Driveline support. Supports the driveshaft to ensure stability and reduce vibration during high-speed rotation.
- Universal joint protection. Helps protect the universal joint and extend its service life.
Installation Notes
- Verify fitment. Confirm this bearing matches your original bearing specifications before installation.
- Check your vehicle configuration. This bearing is designed for select 2000-2006 Chevrolet and GMC models. Verify your specific model and drivetrain before ordering.
- Verify the bore diameter. This bearing is designed for a 1.575″ (40.00 mm) bearing opening. If your vehicle has a different size, this part won’t fit.
- Check mounting dimensions. Verify the centerline height (2.230″) and hole spacing (6.610″) against your original bearing before installation.
- Gasket included. The gasket is included for installation. Ensure proper placement during assembly.
- Professional installation recommended. Proper alignment during installation is critical to prevent premature wear and driveline vibration issues.
About DUHUI Bearing
Manufactured by DUHUI Bearing – an automotive bearing supplier established in Zhejiang, China, in 2003. DUHUI produces center support bearings, wheel hub bearings, and related components to OE specifications. Contact us
For fitment questions, compare your old part number against the OE numbers listed above.
