LiuGong 952E 953E 11C1028 11C0840 K5V212DTP Kawasaki K5V212 Hydraulic Main Pump Assembly Compatible with LiuGong

1. Product Overview & Wholesale Price Range

The LiuGong 952E / 953E Kawasaki K5V212DTP Hydraulic Main Pump Assembly (OEM Part # 11C1028 / 11C0840 / K5V212DTP) is an ultra-high-capacity dual axial piston tandem variable displacement pump engineered for 50-to-53-ton heavy mining excavators working under continuous open-pit quarrying, rock ripping, and mass earthmoving environments.

• Factory Wholesale Price: $8,800 – $15,200 USD (Direct manufacturer pricing — Save up to 50% vs regional dealer markups)
• MOQ & Bulk Discount: 1 Unit (Tiered wholesale discounts available for batch container orders)
• Lead Time: 1–3 business days (Large factory stock ready for immediate worldwide dispatch)
• Warranty: 12 Months full replacement warranty with 100% bench pressure test video proof

2. Application Worksite Checklist (施工场景清单)

Engineered with high-strength alloy swashplates and heavy-duty roller bearings to handle continuous 380 Bar pressure peaks:

• Heavy Open-Pit Rock Mining & Quarrying: Massive continuous hydraulic flow output under extreme working pressure for rapid rock truck loading with LiuGong 952E excavators.
• Deep Mass Foundation Excavation: Dual-circuit hydraulic stability during simultaneous boom lifting, bucket curling, and swing cycles on LiuGong 953E excavators.
• Highway Infrastructure & Heavy Trenching: Precise electronically-controlled displacement for fuel-efficient long-hour earthmoving work.
• Demolition & Heavy Breaker Operations: Reinforced cast iron pump housing protects against continuous high hydraulic pressure shockwaves from heavy breaker attachments.

3. Hydraulic Main Pump Troubleshooting & Diagnostic Guide (液压泵常见故障排查)

If your LiuGong 50–53 ton heavy mining excavator is exhibiting hydraulic system failure, consult the diagnostic guide below:

• Fault 1: Cold Machine Operates Normally, But Machine Slows Down & Drops Pressure After 1 Hour (冷车正常,热车掉压发慢)
  Root Cause: Thermal expansion wear gap between the piston shoes, cylinder block, and distributor valve plate, causing internal high-pressure oil thermal bypass.
  Solution: Replace with a complete drop-in K5V212DTP main pump assembly (OEM 11C1028) or perform a complete rotary group overhaul.
• Fault 2: Engine Stalls or Overloads When Actuating Hydraulic Boom/Arm (憋车/发动机过载熄火)
  Root Cause: K5V212DTP pump regulator power-control spool jammed or hydraulic pilot regulator valve miscalibrated.
  Solution: Recalibrate K5V212DTP regulator pilot valve or replace the complete regulator assembly to restore engine horsepower matching.
• Fault 3: Hydraulic Oil Leakage From Drive Shaft Seal Area (主驱动轴封高压串油漏油)
  Root Cause: Clogged casing drain circuit line causing excessive internal housing backpressure, blowing out the drive shaft skeleton seal.
  Solution: Flush housing drain lines, replace front drive shaft seal, and check gear pilot pump relief pressure.
• Fault 4: Abnormal Cavitation Noise or Severe Vibration From Main Pump (泵体异响抖动/气蚀)
  Root Cause: Air suction at hydraulic inlet lines, contaminated oil suction filter, or worn drive shaft support bearings.
  Solution: Replace suction line seals, flush hydraulic fluid tank, and replace drive shaft roller bearings.
• Fault 5: Black Metallic Filings Found Inside Hydraulic Tank Filter (油箱内有黑粉或金属屑)
  Root Cause: Severe friction galling on swashplate shoe bronze layer or cylinder block face failure.
  Solution: Flush entire hydraulic piping system, clean main control valve, and install a new K5V212DTP main pump assembly.

4. Hot Machinery Replacement Parts Recommendation (5大品类热门推荐表)

Explore our factory-direct replacement hydraulic components compatible with major global excavator brands:

5. Frequently Asked Questions & Technical Support (QA 问答专区)

Q1: How do I verify if this K5V212DTP main pump fits my LiuGong 952E or 953E excavator?
A: Check your original pump nameplate for OEM numbers 11C1028, 11C0840, or K5V212DTP stamp. You can also send us your machine serial number for instant fitment verification.

Q2: My LiuGong 952E excavator stalls the engine when digging heavy granite. Will replacing the K5V212DTP pump solve it?
A: Yes, engine stalling is usually caused by a faulty K5V212DTP pump regulator valve failing to stroke down under load. Installing our pre-calibrated K5V212DTP pump restores correct engine power matching.

Q3: Is this LiuGong 952E K5V212DTP hydraulic main pump bench tested before shipment?
A: Yes, every single K5V212DTP pump undergoes a 5-step factory bench test, verifying pressure up to 380 Bar and volumetric efficiency above 95%. A live test video is provided before shipping.