One New Aftermarket Replacement Tapered Roller Bearing Cup Fits Caterpillar Backhoe Loaders and Universal Tractor Applications
This tapered roller bearing cup (outer race) is a direct replacement Fits Caterpillar (Fits CAT) OEM part number 3N6408, cross-referenced as HM803110. The cup pairs with a matching cone (compatible cones: HM803145, HM803146, HM803149) and is designed to support heavy radial and axial loads in wheel, axle, and drivetrain applications on Fits Caterpillar backhoe loaders and a wide range of agricultural and construction equipment.
Specifications
- Type: Tapered Roller Bearing Cup (Outer Race)
- Outside Diameter: 3.500 in (88.9 mm)
- Width: 0.906 in (23.0 mm)
- Material: Chrome Steel
- Configuration: Single Cup, Non-Flanged
- Compatible Cones: HM803145, HM803146, HM803149
Compatible Models
Fits Caterpillar Backhoe Loaders: 416B, 416C, 416D, 420D, 424D, 426C, 428B, 428C, 428D, 430D
Also fits a wide range of universal agricultural tractor applications across multiple makes and models – confirm fitment via your parts manual or serial number before ordering.
Replaces Part Number(s):
HM803110, 3N6408
Aftermarket Interchange Numbers
Timken: HM803110 | NTN: HM803110PX1 | Koyo: HM803110 | Spicer: 585944, 706861X | Fits Case: R10277 | Fits John Deere: JD8236 | Fits International Harvester (Fits International Harvester): 943915C1, 943917C91 | Fits Allis Chalmers: 711600445, 8007525 | Fits JCB: 907/09000 | National/Chicago Rawhide: HM803110
New aftermarket replacement part – not remanufactured, not used.








