Hydraulic Pump 708 3S 00130 Fits for Komatsu Excavator PC40MR 1 PC45MR 1 PC45MRX 1 da7c922f 4489 48c0 88db 8d43d8c16b93.jpg

708-3S-00130 Hydraulic Pump for Komatsu PC40MR-1 PC45MR-1 Excavator

Part 708-1W-00042 is a hydraulic pump covering Komatsu PC60, PC70, BR100J and BR100JG. In service it feeds pressurized oil to the cylinders and motors so the machine can dig, lift and travel. It also cross-references 708-1W-0104 and 7081W0104.

Category: Hydraulic Pump Assembly

Description
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708-1W-00042 Hydraulic Pump is a replacement hydraulic pump for Komatsu, including PC60, PC70, BR100J, BR100JG, BR100R. The main hydraulic pump converts engine power into pressurized oil flow. Supplied by LIONKITS as remanufactured.

708-1W-00042 Hydraulic Pump Specifications

Product Type: Hydraulic Pump
Part Number: 708-1W-00042, 708-1W-01042, 708-1W-0104, 7081W00042, 7081W0104
Compatible Brand: Komatsu
Condition: Remanufactured
Country of Origin: China

Komatsu Models Compatible with the 708-1W-00042 Hydraulic Pump

Komatsu Excavators: PC60, PC70 Fits Komatsu Mobile Crushers And Recyclers: BR100J, BR100JG, BR100R, BR100RG
Details: BR100J-1 S/N 1002-UP MOBILE CRUSHERS AND RECYCLERS BR100JG-1 S/N 1002-UP MOBILE CRUSHERS AND RECYCLERS BR100R-1 S/N 1002-UP MOBILE CRUSHERS AND RECYCLERS BR100RG-1 S/N 1002-UP MOBILE CRUSHERS AND RECYCLERS PC60-7 S/N 45001-UP (With Front Blade Spec.) EXCAVATORS PC60-7 S/N 45001-UP EXCAVATORS PC60-7-B S/N 45001-UP EXCAVATORS PC60-7E S/N 45001-UP EXCAVATORS PC60-7E-B S/N 45001-UP EXCAVATORS PC60-7S S/N 45001-UP EXCAVATORS PC60-7S-B S/N 45001-UP EXCAVATORS PC70-7 S/N 45001-UP EXCAVATORS PC70-7-B S/N 45001-UP EXCAVATORS PC70-7E S/N 45001-UP EXCAVATORS PC70-7E-B S/N 45001-UP EXCAVATORS

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 708-1W-00042 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 708-1W-00042 Hydraulic Pump?

The 708-1W-00042 Hydraulic Pump is a replacement hydraulic pump for Komatsu , supplied as remanufactured under part numbers 708-1W-00042, 708-1W-01042, 708-1W-0104, 7081W00042.

Which Komatsu models does the 708-1W-00042 Hydraulic Pump fit?

It is listed for PC60, PC70, BR100J, BR100JG, BR100R, R100RG and other models in the compatibility list above. 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.