DH360LC-V or R335-7 losing main circuit pressure under combined load? The large-displacement K3V180DT pump develops bypass faster than smaller pumps due to the higher piston load per cycle. RITO supplies this axial piston pump rated to K3V180DT specifications, restoring the sustained high-pressure high-flow output that large Doosan and Kawasaki machines require.
Item NO.:
K3V180DTH1POR-YYB-OTOrder(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In StockK3V180DTH1P0R (YYB) Hydraulic Main Pump for Doosan DH360LC-V, R335-7 and R375-7 excavators. The K3V180DT is a high-displacement variable pump designed for 30-40 tonne excavators. The YYB regulator variant is matched to the DH360LC-V / R335-7 electronic control signal for correct power-limit response. Precision rotating group restores rated displacement and fast pressure build-up.
| Part Number | K3V180DTH1P0R (YYB) |
|---|---|
| Part Name | Hydraulic Main Pump |
| Compatible Brand | Kawasaki (for Doosan) |
| Applicable Models | DH360LC-V, R335-7, R375-7 Excavator |
| Application | High-displacement variable axial piston main pump for 30-40t excavator hydraulic system |
| Material | Precision alloy steel rotating group, high-pressure pump housing |
| Product Color | Industrial finish |
| Working Temperature | -25°C~+60°C |
| Key Function | Generates high-flow high-pressure output for simultaneous multi-function operation on large excavators |
| Condition | 100% New Aftermarket OEM Quality |
| Packaging | Wooden Case Reinforced Carton Neutral Packing Customized Box |
Regulator YYB variant matches the Doosan DH360LC-V / R335-7 ECU power-limit signal frequency and range, preventing hunting and ECU fault codes from regulator mismatch.
K3V180DT displacement rating provides the flow volume required for simultaneous boom, swing and arm operation on 30-40 tonne duty cycles.
Housing wall thickness and bolt flange geometry designed for K3V180DT maximum operating pressure without housing distortion under sustained heavy-load operation.
Single pump model covers DH360LC-V, R335-7 and R375-7, simplifying inventory for Doosan multi-model fleet maintenance operations.
FAQ
Q: Why is the YYB regulator variant critical for DH360LC-V?
A: The Doosan ECU sends a specific electrical signal to the YYB regulator for electronic power limiting. Installing a non-YYB regulator causes the pump to either over-deliver (engine overload) or under-deliver (slow actuators) across the full duty range.
Q: How do I know the K3V180DT pump on my R335-7 is the cause of system pressure loss?
A: Perform an individual section case-drain flow test at rated speed. If both section case-drain flows exceed OEM specification simultaneously, the pump rotating group is worn. Isolated high drain from one section may indicate a valve or circuit fault.
Q: What oil specification applies to K3V180DT on R335-7?
A: Doosan R335-7 typically specifies ISO VG 46 anti-wear hydraulic oil. Verify with the machine service manual for your operating climate and replace all filter elements before starting up after pump installation.
Q: How to confirm K3V180DTH1P0R-YYB fits my DH360LC-V or R335-7?
A: Verify the existing pump model and regulator label match K3V180DTH1P0R-YYB. Match SAE port sizes and engine flange bolt circle. Provide machine serial number for cross-reference.
Q: What quality options are available?
A: We provide original, OEM and high-quality aftermarket versions with stable supply capability.
Q:Why Choose RITO?
A:Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies
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