Vio55 TB153 SY60 PSVD2-27E 172163-73010 KYB PSVD2-27E Hydraulic Main Pump Repair Kit Compatible with Yanmar Takeuchi Sany
1. Product Overview & Wholesale Price Range
The KYB PSVD2-27E Hydraulic Main Pump Repair Kit (OEM Part # 172163-73010 / PSVD2-27E / PSVD2-27) includes the complete internal rotary group: cylinder block, piston shoes with bimetallic bronze slippers, distributor valve plate (RH/LH), retainer plate, ball guide, swash plate, and drive shaft engineered for 5.5-to-6.5-ton mini excavators undergoing main pump overhauls.
- Factory Wholesale Price: $300 – $720 USD (Direct manufacturer pricing — Save up to 50% vs regional dealer markups)
- Included Spare Parts: Cylinder Block (1pc) + Piston Shoes (9pcs) + Valve Plate (1pc) + Retainer Plate (1pc) + Ball Guide (1pc) + Swash Plate (1pc) + Drive Shaft (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 dispatch)
- Warranty: 12 Months full replacement warranty with high-lead bimetallic copper durability guarantee
2. Application Worksite Checklist (施工场景清单)
Precision-ground surface finishes engineered to restore full hydraulic pressure under continuous high-intensity field work:
- Urban Pipe Trenching & Utility Installation: Restores fine hydraulic control and smooth boom movement during ditch digging with Yanmar Vio55 excavators.
- Residential Infrastructure & Foundation Digging: High thermal resistance prevents speed drop during long continuous operating hours on Takeuchi TB153 excavators.
- Agricultural Drainage & Landscaping: Lapped distribution faces ensure zero internal oil bypass during fast bucket loading and grading cycles.
- Demolition & Concrete Breaker Work: High-tensile forged alloy steel piston shoes absorb heavy hydraulic pressure shockwaves.
3. Hydraulic Pump Overhaul & Fault Diagnostic Guide (维修包常见故障排查)
If your 5.5–6.5 ton excavator main pump is exhibiting hydraulic pressure 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 distributor valve plate surface causing internal high-pressure thermal oil bypass.
Solution: Replace the worn rotary group with our precision lapped PSVD2-27E cylinder block and valve plate kit (OEM 172163-73010). - Fault 2: Engine Stalls or Lacks Digging Force Under Heavy Load (憋车熄火/无力)
Root Cause: Scoring on piston shoe bronze slippers or sticking in the swashplate cradle pivot.
Solution: Install new PSVD2-27E high-lead bronze piston shoes and swashplate group to restore smooth stroke response. - Fault 3: Black Copper Debris Found in Hydraulic Return Oil Filter (油箱内有黑粉铜屑)
Root Cause: Friction galling and thermal melting of the bimetallic bronze layer on the piston slippers.
Solution: Flush the entire hydraulic oil circuit, clean control valves, and rebuild pump with a new PSVD2-27E 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 contact 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:
| Category (品类) | Machine Model (适用型号) | OEM Part Number (零件号) | Compatibility (适配品牌) |
|---|---|---|---|
| Hydraulic Pump Repair Kit | Yanmar Vio55 / Takeuchi TB153 | 172163-73010 / PSVD2-27E | Compatible with Yanmar Takeuchi |
| Hydraulic Pump Repair Kit | CAT 320C / 320D / 320E | 200-3269 / SBS120 | Compatible with Cat-erpillar |
| Travel Motor Repair Kit | SK30SR / KX121-3 | 1910-22100 / TM09 | Compatible with Kobelco Kubota |
| Hydraulic Motor Repair Kit | SK330-8 / SK350-8 | YN15V00018F1 / MSF340VP | Compatible with Kobelco |
| Hydraulic Pump Repair Kit | Sumitomo SH75 / Yanmar Vio75 | 18251-10000 / PVC80 | Compatible with Sumitomo Yanmar |
| Hydraulic Pump Repair Kit | PC60-5 / PC60-6 / PC60-7 | 708-1W-00030 / HPV35 | Compatible with Komatsu |
| Diesel Engine Assembly | PC400-7 / PC450-7 | 6251-11-1001 / SAA6D125E-3 | Compatible with Komatsu |
5. Frequently Asked Questions & Technical Support (QA 问答专区)
Q1: How do I verify if this PSVD2-27E repair kit fits my Yanmar Vio55 excavator main pump?
A: Check your original pump nameplate for OEM part numbers 172163-73010, PSVD2-27E, or PSVD2-27 stamp. You can also send us clear photos of your old cylinder block and piston slippers for instant verification.
Q2: What is the material specification of the PSVD2-27E cylinder block and valve plate?
A: Our PSVD2-27E cylinder blocks are manufactured from high-density alloy steel with bimetallic copper-alloy distributor faces, heat-treated for continuous 320 Bar working pressure.
Q3: Is this PSVD2-27E repair kit a complete drop-in solution for hydraulic pump rebuilds?
A: Yes, the kit includes all primary internal wear components (cylinder block, 9 pistons, valve plate, retainer plate, ball guide, swashplate, and drive shaft) needed for a complete pump overhaul.
