1B3918 Cup Fits Caterpillar Models
1B3918 Cup Fits Caterpillar Models
Couldn't load pickup availability
One New Aftermarket Replacement Tapered Roller Bearing Cup for Caterpillar (Cat) Equipment
This aftermarket replacement tapered roller bearing cup (outer ring) replaces Caterpillar (Cat) OEM part number 1B3918. The cup is the outer ring component of a tapered roller bearing assembly, designed to handle combined radial and thrust loads in heavy construction equipment applications. This part also cross-references to NTN/Bower bearing number BCU-7120 and is interchangeable across multiple equipment brands.
Compatible Models
Caterpillar (Cat): Verify fitment by serial number using part number 1B3918 / 1B-3918 in the Cat parts system.
Replaces Part Number(s):
1B3918, 1B-3918, 1B3918T, 509554, 1B3919
Aftermarket Interchange Numbers
NTN/Bower BCU-7120; Case 40463, A26640; Eaton 1008912, 7414, 28057; Ford C5TZ-1217A, C5TA-1217A, EOADKN-4618
New aftermarket replacement part - not remanufactured, not used.
