1241670 Coupling A Fits Caterpillar Models
1241670 Coupling A Fits Caterpillar Models
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One New Aftermarket Replacement Coupling for Caterpillar (Cat) Excavators
This aftermarket replacement Coupling (also listed as Coupling AS) is a hydraulic pump coupling used on Caterpillar (Cat) excavators. It connects the engine to the hydraulic pump drive assembly, maintaining reliable power transfer within the hydraulic system. Replaces Caterpillar OEM part number 1241670.
Compatible Models
Caterpillar Excavators: 315, 315B L, 311D, 312D, 315D, 320, 320B, 320B L, 320C
Caterpillar Engine: 3066
Note: Core fitment confirmed for 320B, 320B L, and 3066. Fitment for 311D, 312D, 315, 315B L, 315D, 320, and 320C is sourced from aftermarket listings - verify compatibility with your serial number before ordering.
Replaces Part Number(s):
1241670, 124-1670
Aftermarket Interchange Numbers
1241669, 1102543, 110-2543
New aftermarket replacement part - not remanufactured, not used.



