K3V112 Hydraulic Pump Spare Parts

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

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Product details

Kobelco SK200‑8 K3V112 Hydraulic Pump – Components & Spare Parts

（For Kobelco SK200‑8 / SK210‑8 / SK250‑8, Kawasaki K3V112DTP piston pump）

1. Basic Info

- Brand: Kawasaki

- Model: K3V112DTP‑YT0K / YT2K

- Application: Kobelco SK200‑8, SK210‑8, SK250‑8

- OEM No.: YN10V00036F1 / YN10V00036F2

- Type: Tandem variable piston pump + gear pilot pump (load sensing, electronic control)

2. Main Specifications

- Displacement: 112 mL/r × 2 (twin pump)

- Rated Pressure: 31.4 MPa (peak 34.3 MPa)

- Rated Speed: 2,200 rpm

- System: Load Sensing (LS) + electronic flow control

- Drive: Engine direct drive (J05E engine)

3. Core Components

① Main Pump Housing Assembly

- Front/rear housing, intermediate body

- Main drive shaft

- Bearing set (main shaft & support bearings)

- Oil seals (main shaft & end cover seals)

② Piston Pump Core (Wear Parts)

- Cylinder block: 11‑bore piston cavity

- Piston & shoe assembly: 11 sets

- Valve plate: Inlet/outlet porting

- Retainer plate

- Ball joint

- Springs: Cylinder block & retainer plate springs

③ Pilot Gear Pump

- Model: K5V80 (integrated at pump rear)

- Function: Supplies pilot pressure (3.5–4.0 MPa)

- OEM No.: YN10V00043F1

④ Regulator (Displacement Controller)

- Electronic regulator

- LS‑EPC solenoid valve (24V proportional)

- Servo piston, fork & linkage

- OEM No.: YN10V01006F1 / YN10V01009F2

⑤ Valve Blocks & Control Elements

- LS pressure sensor

- Relief valves (main & pilot relief)

- Check valves, orifices

- Accumulator (damper)

4. Common Spare Parts & Repair Kits

① Overhaul Kit

- Full seals (oil seals, O‑rings, dust seals)

- Piston & shoe seals

- Wear plates for valve plate & retainer plate

- OEM No.: YN10V00043F1 / YN10V00036F3

② Piston Assembly (11 sets)

- Piston + shoe assemblies

- Wear rings, thrust plates

③ Valve Plate

- High‑alloy steel, prone to wear/scoring

④ Bearings & Oil Seals

- Main bearing (e.g., 22310E)

- Skeleton oil seals (TC/VC type)

⑤ Solenoid Valve

- LS‑EPC valve (24V proportional)

- OEM No.: YN10V01009F1

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

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