Cat Excavator Hydraulic Pump Couplers

Cat Excavator Hydraulic Pump Couplers parts list
Fits Model	Description	Details	Part #	Price	Product Details
See Details	311C, 312C, 313B, 314C, 910G	Hydraulic Pump Coupler	0	099-0149	$155.00	View Info
See Details	311D, 312D, 314D, 314DLCR	Hydraulic Pump Coupler	7Y1901	$155.00	View Info
See Details	320D	Hydraulic Pump Coupler	7Y0463	$180.00	View Info
See Details	330D, 336D	Hydraulic Pump Coupler	0	3244230	$350.00	View Info

Hydraulic pump couplers for Caterpillar excavators, covering a wide range of compact and full-size machines from the 311C through the 336D. These couplers connect the engine to the hydraulic pump and are critical to maintaining proper hydraulic system function — worn or failed couplers lead to pump slippage, vibration, and loss of hydraulic pressure.

Fits Models At A Glance

300C Series: 311C, 312C, 313B, 314C
300D Series: 311D, 312D, 314D, 314DLCR, 320D, 330D, 336D

Key Notes

Application: Connects engine flywheel to hydraulic pump drive; critical for pump engagement and pressure output
Part Numbers: Covers Cat part numbers 099-0149, 7Y1901, 7Y0463, and 3244230
Fitment Range: Spans compact excavators through large production excavators
Condition: New replacement couplers available for all listed models

Why Choose Broken Tractor

✅ Accurate fitment data matched to Cat model and serial range
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