1P3934 Cup-Bearing Fits Caterpillar Models
1P3934 Cup-Bearing Fits Caterpillar Models
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One New Aftermarket Replacement Tapered Roller Bearing Cup for Caterpillar (Cat) Construction Equipment
This aftermarket replacement tapered roller bearing cup replaces Caterpillar (Cat) OEM part number 1P-3934. The bearing cup (outer ring) is the stationary outer race of a tapered roller bearing assembly, designed to support both radial and axial loads in high-demand applications such as axle systems, drivetrains, and rotating shaft assemblies found across Caterpillar construction and compaction equipment.
Specifications
- Type: Tapered Roller Bearing Cup (outer ring only)
- Outer Diameter: 5.118 in (130.00 mm)
- Cup Width: 0.9449 in (24.00 mm)
- Bore / Inner Diameter Reference: 145.00 mm (as listed by Cat Parts Store)
- Series: M716600
- Material: High-alloy steel
- Note: Cup (outer ring) only - cone/inner ring assembly sold separately
Compatible Models
Caterpillar: Fits various Caterpillar construction and compaction equipment models. Verify fitment by serial number and application before ordering. This part is associated with Caterpillar compactor and asphalt roller applications.
Replaces Part Number(s):
1P3934, 1P-3934
Aftermarket Interchange Numbers
Timken JM716610; NTN JM716610
New aftermarket replacement part - not remanufactured, not used.



