CAT 336D 330D 322-8733 295-9674 Kawasaki Hydraulic Main Pump Assembly Compatible with Cater.pillar
Place of Origin:China
Brand Name:HanRui
Model Number:K5V160/CAT336D
Minimum Order Quantity:1 pc
Payment Terms:D/A,L/C,D/P,T/T,Western Union
Supply Ability:10000 pcs
Product Details
Product Type:
Hydraulic Main Piston Pump Assembly
Application:
Small & Medium Heavy Excavator Construction Machinery
Condition:
Brand New Aftermarket Replacement Spare Parts
Warranty:
12 Months Factory Warranty
MOQ:
1 Piece
Usage Scenario:
Mining, Quarry, Road & Infrastructure Construction
Solved Problems:
Oil Leakage, Low Torque, Equipment Vibration & Swing Failure
Product Description
"Welcome to LongYing hydraulic supply. We specialize in providing the complete CAT 336D 330D excavator Kawasaki K5V160 hydraulic main pump assembly (OEM 322-8733 / 295-9674), precision-manufactured as a heavy-duty aftermarket replacement part compatible with Cater.pillar engineering machinery equipment."
1. Overview & Price Range
The Kawasaki K5V160DT / K5V160DTP Hydraulic Main Pump (OEM Part # 322-8733 / 295-9674 / 266-7954) is specifically designed for Cater.pillar CAT 336D, 336D L, and 330D heavy excavators operating under high-intensity mining and rock breaking conditions.
- Price Range: $7,800 – $12,500 USD (Depending on pump configuration & regulator options)
- Lead Time: 1–3 business days (Ready to ship)
- Warranty: 12 Months full replacement warranty
2. Selection Guide: Complete Assembly vs Rotary Group Repair Kit
| Feature / Metric | Complete Drop-In K5V160 Pump Assembly | Rotary Group Overhaul Kit |
|---|---|---|
| Price Range | $7,800 – $12,500 USD | $1,500 – $2,800 USD |
| Included Components | Dual Main Pump + Gear Pilot Pump + Swashplate Regulators | Cylinder Block, Piston Shoes, Valve Plate, Swash Plate |
| Downtime Impact | Ultra-short (2–4 hours plug & play) | Moderate (12–24 hours complete disassembly & rebuild) |
| Core Problem Solved | Total hydraulic failure / Housing internal erosion | Pressure drop / Slight internal oil bypass |
3. 5-Step OEM Factory Quality Control Process
- Precision Bench Testing: Dynamic flow rate and working pressure tested up to 350 Bar.
- Volumetric Efficiency Check: Maintained strictly above 95% under maximum hydraulic load.
- Shaft Seal & Leakage Test: High-pressure tightness verification on main shaft seals.
- Regulator Valve Calibration: Dual negative flow control valves presetted to original Cater.pillar factory curve.
- Heavy-Duty Packaging: VCI anti-rust sealed bag + reinforced export wooden pallet crate.
4. Troubleshooting & Diagnostic Guide
- Issue 1: Machine slow & engine stalls when under heavy loading
Root Cause: Main pump regulator spool sticking or incorrect power control valve presetting.
Solution: Recalibrate K5V160 regulator valves or replace complete pump assembly. - Issue 2: Hydraulic fluid overheating and pressure drop after 1 hour operation
Root Cause: Severe clearance wear on piston cylinder block and valve plate surface.
Solution: Replace worn rotary group kit or install new complete main pump. - Issue 3: Oil leaking from the front drive shaft seal area
Root Cause: Excessive casing internal pressure caused by clogged drain line or shaft seal wear.
Solution: Clean pump casing drain line and replace front drive shaft seal group. - Issue 4: Abnormal cavitation noise from pump housing
Root Cause: Air suction at inlet pipe or damaged shaft support bearings.
Solution: Inspect hydraulic oil inlet seal ring and replace drive shaft bearings.
5. Frequently Asked Questions (FAQ)
Q1: How can I verify if this K5V160 pump fits my CAT 336D excavator?
A: Verify your original pump tag for OEM part numbers 322-8733, 295-9674, or 266-7954. You can also provide your Cater.pillar machine serial number (e.g., KKT, PRF, C9 engine) for instant confirmation.
Q2: Is this pump compatible with original Cater.pillar hydraulic systems?
A: Yes, all flange dimensions, drive shaft splines, oil port bolt patterns, and regulator connections are 100% plug and play matching original OEM specs.
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