K3VL80B Kawasaki K3VL80 Hydraulic Pump Repair Kit Compatible with Kawasaki

1. Product Overview & Wholesale Price Range

The Kawasaki K3VL80 / K3VL80/B Hydraulic Pump Repair Kit (OEM Part # K3VL80 / K3VL80/B) includes the complete internal rotary group overhaul set: cylinder block, piston shoes with bronze slippers, distributor valve plate, retainer plate, ball guide, swash plate cradle, and drive shaft designed for variable displacement piston pumps undergoing complete overhauls.

• Factory Wholesale Price: $320 – $680 USD (Direct manufacturer pricing — Save up to 50% vs regional dealer markups)
• Included Core Spare Parts: Cylinder Block (1pc) + Piston Shoes (9pcs) + Valve Plate (1pc) + Retainer Plate (1pc) + Ball Guide (1pc) + Swash Plate Cradle (1pc)
• MOQ & Bulk Discount: 1 Set (Tiered wholesale discounts available for hydraulic repair shop batch orders)
• Lead Time: 1–3 business days (Large factory stock ready for immediate worldwide dispatch)
• Warranty: 12 Months full replacement warranty with high-lead bimetallic bronze durability guarantee

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

Engineered to restore original hydraulic working pressure across demanding industrial and mobile equipment jobsites:

• Heavy Construction & Mobile Excavators: Restores maximum hydraulic flow under continuous 320 Bar pressure during trenching and earthmoving operations.
• Foundation Drilling & Piling Rigs: High thermal resistance bimetallic plates prevent power loss during long-hour heavy torque drilling.
• Industrial Hydraulic Power Units: Micro-lapped cylinder faces ensure zero internal oil bypass during continuous factory operations.
• Forestry & Demolition Equipment: Case-hardened steel pistons withstand continuous high hydraulic pressure spikes from heavy attachments.

3. Hydraulic Pump Overhaul & Fault Diagnostic Guide (维修包常见故障排查)

If your Kawasaki K3VL80 hydraulic pump is exhibiting performance degradation, check the wear symptoms below:

• Fault 1: Thermal Pressure Loss & Machine Slowdown After 1 Hour (热车掉压发慢/内泄)
  Root Cause: Wear gap between the cylinder block face and valve plate surface causing internal high-pressure thermal oil bypass.
  Solution: Replace the worn rotary group with our precision lapped K3VL80 cylinder block and valve plate kit.
• Fault 2: System Pressure Drops Under Heavy Load (重载掉压无力)
  Root Cause: Scoring on piston shoe brass slippers or stickiness in the swashplate cradle pivot.
  Solution: Install new K3VL80 copper-coated piston shoes and swashplate group to restore smooth stroke control.
• Fault 3: Black Copper Filings Found in Hydraulic Return Oil Filter (油箱内有黑粉铜屑)
  Root Cause: Friction galling and thermal melting of the bronze layer on the piston slippers under high pressure.
  Solution: Flush the entire hydraulic oil circuit, clean control valves, and rebuild pump with a new K3VL80 repair kit.
• Fault 4: Abnormal Pulsation Noise & Chattering From Pump Housing (泵体异响/震动)
  Root Cause: Broken retainer plate spring, worn ball guide, or pitted swashplate surface.
  Solution: Replace ball guide, retainer plate, and swashplate assembly to eliminate mechanical chatter.

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 K3VL80 repair kit fits my Kawasaki K3VL80 hydraulic pump?
A: Check your original pump nameplate for model stamp K3VL80 or K3VL80/B. You can also send us clear photos of your old cylinder block and piston slippers for instant fitment verification.

Q2: What is the material composition of the K3VL80 cylinder block and piston slippers?
A: Our K3VL80 cylinder blocks are made of high-density forged alloy steel with bimetallic copper-alloy distribution faces, and the piston shoes feature high-lead bronze slippers rated for continuous 320 Bar working pressure.

Q3: Is this K3VL80 repair kit a complete overhaul solution for hydraulic pump rebuilds?
A: Yes, it includes all major internal wear components (cylinder block, 9 pistons, valve plate, retainer plate, ball guide, and swashplate) required for a complete pump rebuild.