N2120281X Center Support Bearing For CHEVROLET GMC

The DUHUI Bearing N2120281X center support bearing is a direct-fit OE replacement designed for Chevrolet and GMC truck applications. This 1330 series driveshaft support bearing reduces vibration and maintains driveline stability during high-speed rotation. Manufactured to match original equipment specifications including N2120281X, 88934865, and HB88540, this center support bearing delivers reliable performance for compatible General Motors vehicles.
Technical Specifications
| Specification | Value / Detail |
|---|---|
| DH Code | |
| Part Number | N2120281X |
| Product Type | Center Support Bearing |
| Application | Driveshaft / Propeller Shaft |
| Series | 1330 |
| Style | 17 |
| Bearing ID | 40.00 mm (1.574 inch) |
| Bracket Width (C) | 38.10 mm (1.500 inch) |
| C-L to Mounting (B) | 57.15 mm (2.250 inch) |
| C-L to C-L (D) | 168.15 mm (6.620 inch) |
| Stud Thread Size | M10 x 1.5 |
| Vehicle Application | Chevrolet, GMC |
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:
OE Numbers:
N2120281X, 88934865, HB88540
Reference Numbers (Interchange):
SKF: HB88540
Timken: HB88540
MOOG: 2120281X
Vehicle Fitment
CHEVROLET: Compatible with select Chevrolet truck models equipped with 1330 series center support bearings.
GMC: Compatible with select GMC truck models equipped with 1330 series center support bearings.
Please verify OE number, dimensions and vehicle configuration before ordering.
Product Features
- Direct OE replacement for Chevrolet and GMC driveline applications. Matches OEM specifications N2120281X, 88934865, and HB88540.
- 40.00 mm bearing ID and 1330 series design provide exact fitment for the driveshaft assembly.
- Style 17 bracket configuration ensures proper alignment and secure mounting.
- M10 x 1.5 stud thread size matches factory specifications for straightforward installation.
- Heavy-duty construction supports radial and axial loads while absorbing vibration and reducing noise.
Installation Notes
- Verify the 40.00 mm bearing ID matches your driveshaft before installation.
- Confirm the bracket mounting holes align with the chassis using the C-L to C-L dimension of 168.15 mm.
- Check that the M10 x 1.5 stud threads are clean and undamaged before installation.
- Torque all mounting hardware to GM manufacturer specifications.
- After installation, check for smooth rotation and ensure the rubber support is properly seated.
About DUHUI Bearing
Manufactured by DUHUI Bearing – an automotive bearing supplier established in Zhejiang, China, in 2003. DUHUI produces center support bearings to OE specifications. Contact us

