K3V112DTP‑9Y14 Hydraulic Pump for Sumitomo SH210‑5 excavator spare parts

Short Description:

The Kawasaki K3V112DTP‑9Y14 is an original positive‑flow dual‑piston main pump specially matched for Sumitomo SH210‑5 excavator. Tuned with exclusive internal calibration parameters, it perfectly fits the engine power curve and torque output features of SH210‑5. Derived from mature K3‑series variable‑displacement pump platform, this component serves as the core power source of the machine‑mounted hydraulic system, supplying dual‑circuit hydraulic energy for boom, arm, bucket, travel and slew actuators. Optimized for earth‑moving works, quarry excavation and long‑hour continuous site operation, it delivers fast response, well‑coordinated multi‑action performance, steady pressure output and restrained thermal drift, securing stable working efficiency under varied site conditions.

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Product Detail

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description

K3V112DTP‑9Y14 adopts positive‑flow dynamic matching control logic. Its dedicated 9Y14 valve assembly captures operator input signals and real‑time load variation, adjusts pump displacement dynamically and syncs flow output with main control valve, achieving fine pump‑valve coordination. Such design cuts down redundant power loss, lifts energy‑utilization ratio and improves manipulation smoothness. The pump body adopts high‑rigidity cast‑steel integral casting, fitted with high‑precision plunger sets and wear‑resistant hardened valve plate, paired with upgraded high‑temperature‑resistant composite sealing assemblies. Every finished unit goes through durability, impact and harsh‑environment simulation tests, adapting to construction sites featured with heavy vibration, dust and high ambient temperature. Compared with generic non‑calibrated replacement pumps, the 9Y14 variant has model‑specific parameter tuning, quicker dynamic feedback and smoother compound movements, effectively relieving typical faults such as weak digging capacity, sluggish response, system overheating and power waste caused by mismatched parameters.

product parameters

Brand: Kawasaki (Genuine Original)

Model: K3V112DTP‑9Y14

Product Name: Positive‑Flow Controlled Dual‑Variable‑Piston Main Hydraulic Pump Assembly

Applicable Equipment: Sumitomo SH210‑5 excavator

Structural Type: Axial Variable‑Displacement Dual‑Piston Pump (Positive‑Flow Control)

Core Structure: Custom‑made 9Y14 control valve group, real‑time positive‑flow sensing module, dual‑pump swash‑plate variable mechanism, high‑precision plunger assembly, wear‑resistant alloy valve plate, built‑in overload pressure‑protection valve, multi‑layer composite high‑pressure sealing system, integral rigid cast‑steel pump housing

Main Material: High‑strength cast‑steel housing, wear‑resistant alloy plunger pairs, impact‑proof thickened valve plate, high‑temperature anti‑aging sealing parts, precision hydraulic control elements

Core Function: Dual‑independent‑loop hydraulic power output, positive‑flow intelligent dynamic regulation, engine‑power adaptive matching, delivering balanced power support for full‑range hydraulic actuators to realize well‑coordinated multi‑action operation

Working Characteristics: Agile flow dynamic response, accurate proportional‑flow distribution, low no‑load power consumption, moderate heat generation, reliable pressure‑holding capability, limited incremental internal leakage, outstanding structural anti‑fatigue property

Working Condition Adaptation: Suitable for heavy‑duty excavation, rock breaking, frequent start‑stop cycles, impact‑loaded operation and high‑temperature dusty open‑air construction scenarios

Matching Parts: Main control valve assembly, travel & slew hydraulic motor, hydraulic oil tank, return‑oil filter, high‑pressure hydraulic hoses, engine flywheel connecting interface

advantages

• Fitted with original 9Y14 dedicated control valve group and positive‑flow dynamic matching logic, realizing fine pump‑valve synchronization and improving manipulation accuracy for Sumitomo SH210‑5.

• Dynamic flow allocation adjusts output according to real‑time load variation, lowering power loss under idling and light‑load conditions and boosting overall fuel‑saving performance.

• Dual‑pump independent variable architecture enables seamless compound movements of digging, lifting, traveling and slewing without jitter, lag or motion stagnation.

• Built‑in multi‑stage pressure‑buffer protection absorbs transient peak impact pressure, shielding internal precision components against overload damage and prolonging pump service lifespan.

• Overall hardening‑wear‑resistant treatment for core inner parts mitigates performance decay under long‑term cyclic heavy‑duty operation and sustains stable power delivery.

• Optimized composite sealing assembly possesses great resistance against high‑temperature hydraulic‑oil corrosion and aging, lowering occurrence risk of external oil seepage and system pressure‑relief malfunction.

• Adopts OEM standard mounting dimensions, supporting on‑site direct non‑destructive replacement without secondary modification, cutting equipment downtime and maintenance expenses.

maintenance & replacement tips

• Perform routine visual and physical inspection for pump housing, sealing mating faces and high‑pressure pipe joints to rule out oil‑seepage risks triggered by long‑time running vibration and mechanical shock.

• Carry out hydraulic‑oil and filter‑element replacement following Sumitomo SH210‑5 official maintenance schedule, prevent solid impurities from scratching precision friction pairs and keep internal hydraulic‑circuit cleanliness.

• Maintain hydraulic‑oil quality and cleanliness, avoid valve‑group sticking, signal deviation and positive‑flow control failure induced by oil degradation and contamination.

• Periodically check tightening torque of flywheel coupling bolts, avoid anomalous vibration, operational noise and shaft‑surface wear caused by insufficient fastening.

• Refrain from extended extreme‑overload operation and repetitive impact‑type digging, to prevent premature fatigue failure of the inner variable mechanism.

• Once continuous pressure drop, weak digging force, severe internal leakage and awkward compound‑action symptoms emerge, install genuine K3V112DTP‑9Y14 hydraulic pump promptly to restore full hydraulic performance of SH210‑5.

warehouse

We have built four spare parts warehouses in Xuzhou, Jining, Kunshan and Changsha to provide customers from all over the world with a variety of high-quality spare parts. We can basically ship self-provided spare parts within three days after confirming the order. If the spare parts need to be adjusted or processed, they will be shipped within 7-30 days.