PVC80RC11 Hydraulic Pump 296 3867 Fits for Mitsubishi Engine 4M40 Caterpillar CAT Excavator 307D 308D 308D CR 6b8bf4a6 fcc8 4927 b795 4d24b221b561.jpg

Hydraulic Pump PVC80RC11 296-3867 for Mitsubishi 4M40 Engine Excavator

Made for Doosan Daewoo DX80R, DX85R-3, E80 and E85 excavators, this main hydraulic pump (401-00327) feeds pressurized oil to the cylinders and motors so the machine can dig, lift and travel.

Category: Hydraulic Pump Assembly

Description
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401-00327 Main Hydraulic Pump is a replacement main hydraulic pump for Doosan Daewoo excavators, including DX80R, DX85R-3, E80, E85, Solar. The main hydraulic pump converts engine power into pressurized oil flow. Supplied by LIONKITS.

401-00327 Main Hydraulic Pump Specifications

Product Type: Main Hydraulic Pump
Part Number: 401-00327, 40100327
Compatible Brand: Doosan Daewoo
Machine Type: Excavator
Country of Origin: China

Doosan Daewoo Models Compatible with the 401-00327 Main Hydraulic Pump

Doosan Daewoo Excavator: DX80R, DX85R-3, E80, E85, Solar 75-V

Your model is not listed? Contact LIONKITS via live chat or email with your machine model and nameplate photo, and we will confirm compatibility.

What Does a Hydraulic Pump Do?

The main hydraulic pump converts engine power into pressurized oil flow. That oil moves the boom, arm, bucket, swing and travel functions, so every machine movement depends on it. Because it takes the most punishment, it is usually the first major hydraulic component to wear out.

Signs the Part Needs Replacing

Slow or weak movement on all functions: when everything is slow at once, not just one circuit, the pump is the most likely source.
Whining, knocking or grinding noise: internal wear or cavitation, especially on start-up or when the oil is cold.
Hydraulic oil running hot: internal bypass leakage turns pressure into heat.
Metal particles in the filter or case drain: a failing pump sheds metal and pushes out more case drain flow.
Erratic or spongy movement, foamy oil: air entering the suction line, or aeration, upsets pump flow.

These symptoms overlap with clogged filters, low oil, air in the suction line and worn valves, so check the filters and oil level before replacing the part.

How to Order and Install the 401-00327 Main Hydraulic Pump

Confirm your machine model, the part number and the pump model on your existing pump before ordering.
Send a photo of the old pump or the nameplate if you are not sure; LIONKITS will confirm fitment for you.
Change the hydraulic oil and the return filters before fitting the new pump; a new pump installed in contaminated oil will fail early.
If the old pump failed internally and shed metal, flush the tank, hoses and oil cooler and inspect the control valve and motors for contamination.
Fill the pump case with clean hydraulic oil and prime the pump as the service manual specifies before the first start.
Check the suction line, strainer and fittings for air leaks, and tighten bolts to the specified torque.
Run the machine at low speed first, then check pressure, noise and leaks.

Frequently Asked Questions

What is the 401-00327 Main Hydraulic Pump?

The 401-00327 Main Hydraulic Pump is a replacement main hydraulic pump for Doosan Daewoo excavators under part numbers 401-00327, 40100327.

Which Doosan Daewoo models does the 401-00327 Main Hydraulic Pump fit?

It is listed for DX80R, DX85R-3, E80, E85, Solar, 75-V. If you are unsure, send your machine nameplate to LIONKITS for confirmation.

How do I know my hydraulic pump is failing?

Typical signs are slow or weak movement on all functions, whining or knocking noise, hot hydraulic oil, metal particles in the filter or case drain and erratic or spongy movement.