1912645 Coupling Fits Caterpillar Models
1912645 Coupling Fits Caterpillar Models
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One New Aftermarket Replacement Coupling for Caterpillar (Cat) Excavators
This coupling is used in the final drive assembly of Caterpillar (Cat) medium and large excavators. It connects the hydraulic motor shaft to the planetary gear assembly, transmitting torque and power to drive the tracks. The coupling also compensates for axial, radial, and angular displacement caused by manufacturing tolerances, thermal expansion, and mechanical vibration, helping protect the final drive from premature wear.
Compatible Models
Caterpillar Excavators: 325C, 328D LCR, 330C, 330C FM, 330C L, 330C MH, 330D, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 336D2, 336D2 L, 336E, 336E H, 336E HVG, 336E L, 336E LH, 336E LN, 336F L, 340D L, 340D2 L
Caterpillar Mobile Hydraulic Power Units: 330D, 336D L, 336E HVG
Replaces Part Number(s):
1912645, 191-2645
New aftermarket replacement part - not remanufactured, not used.



