| Certifiion | CE |
| Part name | Hydraulic Bucket Cylinder |
| Part number | 21K-70-73120 |
| Delivery Time | 3-7 Day |
| Condition | New |
| Emission standards | Stage V |
| Payment Terms | L/C,D/A,D/P,T/T,TRADE ASSURANCE,WEST UNION,PAYPAL |
| Warranty | 1 Year |
| Quality | Aftermarket High Quality |
| Supply Ability | 100 PCS / Months |
| Shipment | DHL FEDEX TNT EMS UPS / Ses / Air |
| Model | PC160LC-7 PC160-7 |
| Packaging Details | Wooden Case Packing |
| Appliion | Excavator |
| Model Number | PC160LC-7 PC160-7 |
| Brand Name | Belparts |
| Place of Origin | China |
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Product Specification
| Certifiion | CE | Part name | Hydraulic Bucket Cylinder |
| Part number | 21K-70-73120 | Delivery Time | 3-7 Day |
| Condition | New | Emission standards | Stage V |
| Payment Terms | L/C,D/A,D/P,T/T,TRADE ASSURANCE,WEST UNION,PAYPAL | Warranty | 1 Year |
| Quality | Aftermarket High Quality | Supply Ability | 100 PCS / Months |
| Shipment | DHL FEDEX TNT EMS UPS / Ses / Air | Model | PC160LC-7 PC160-7 |
| Packaging Details | Wooden Case Packing | Appliion | Excavator |
| Model Number | PC160LC-7 PC160-7 | Brand Name | Belparts |
| Place of Origin | China | ||
| High Light | Komatsu excavator hydraulic bucket cylinder ,PC160LC-7 hydraulic cylinder spare part ,aftermarket Komatsu bucket cylinder | ||
This high-strength aftermarket hydraulic bucket cylinder is precision manufactured as a direct OEM replacement for Komatsu PC160-7 standard track and PC160LC-7 long-track medium excavators. As the core hydraulic actuator of front working attachment, it drives bucket digging, soil grabbing, stone loading and material dumping. Widely applied in municipal renovation, road construction, landscaping, pipeline engineering and small quarry earthmoving projects.
All cylinders are strictly produced following Komatsu original technical drawings and OEM standards, with fully consistent mounting dimensions, pin hole spacing and hydraulic port layout. Direct bolt-on installation without cutting, welding or any on-site secondary modifiion.
| Item | Specifiion |
|---|---|
| Product Name | Hydraulic Bucket Cylinder |
| Applicable Model | Komatsu PC160-7, PC160LC-7 Excavator |
| OEM Part Number | 21K-70-73120 |
| Product Grade | Brand New High-Quality Aftermarket |
| Warranty | 12 months against manufacturing defects |
| MOQ | 1 unit, sufficient stock for immediate shipment |
| QC Standard | ISO9001 certified, full hydraulic pressure & cyclic fatigue testing before delivery |
| # | Part No. | Description | Qty |
|---|---|---|---|
| 1 | 21K-70-73110 | LINK,L.H | 1 |
| 2 | 21K-70-72240 | Bushing | 1 |
| 3 | 20Y-70-32361 | Bushing | 2 |
| 4 | 20Y-70-23220 | SEAL,DUST (KIT) | 4 |
| 5 | 21K-70-73120 | LINK,R.H | 1 |
| 6 | 21K-70-72240 | Bushing | 1 |
| 7 | 20Y-70-32361 | Bushing | 2 |
| 8 | 20Y-70-23220 | SEAL,DUST (KIT) | 4 |
| 9 | 07020-00000 | FITTING, GREASE - UPPER HINGE PIN | 4 |
| 10 | 21K-70-23130 | Spacer | 1 |
| 11 | 21K-70-23210 | LINK | 1 |
| 12 | 21K-70-73130 | LINK,R.H | 1 |
| 13 | 21K-70-23191 | Pin | 1 |
| 13 | 21K-70-23190 | Pin | 1 |
| 14 | 01019-11640 | Bolt | 1 |
| 15 | 01580-11613 | NUT,(FOR ADJUSTABLE ROD) | 2 |
| 16 | 21K-70-71440 | Spacer | 4 |
| 17 | 21K-70-71490 | Spacer | 2 |
| 18 | 21K-70-23140 | Pin | 1 |
| 19 | 01011-81660 | Bolt | 1 |
| 20 | 01580-11613 | NUT,(FOR ADJUSTABLE ROD) | 2 |
| 21 | 21K-70-23140 | Pin | 1 |
| 22 | 01011-81690 | Bolt | 1 |
| 23 | 01580-11613 | NUT,(FOR ADJUSTABLE ROD) | 2 |
| 24 | 21K-70-23220 | Pin | 1 |
| 25 | 01019-11640 | Bolt | 1 |
| 26 | 01580-11613 | NUT,(FOR ADJUSTABLE ROD) | 2 |
| 27 | 20Y-70-31380 | SPACER? 1.0MM | 2 |
| 28 | 20Y-70-31390 | SPACER? 2.0MM | 1 |
| 29 | 07020-00000 | FITTING, GREASE - UPPER HINGE PIN | 1 |
| Spec Item | Data |
|---|---|
| Bore Diameter | 118mm |
| Piston Rod Diameter | 77mm |
| Working Stroke | 1250mm |
| Rated Working Pressure | 31.4MPa |
| Factory Test Pressure | 47.1MPa (1.5 times rated working pressure) |
| Barrel Material | High-tensile seamless alloy steel with precision inner honing |
| Piston Rod | 40CrMo heat-treated steel, 28~32μm hard chrome plating, HRC68–72, excellent wear resistance & anti-bending performance |
| Matching Seal Kit PN | 21K-70-73120K |
| Working Temperature | -25℃ ~ +85℃ |
| Structure Feature | Double reinforced ear lugs with quenched copper wear bushings, built-in buffer device to reduce reciproing impact noise and shock load |
Our factory has over 10 years of mature experience in R&D and mass production of hydraulic cylinders for classic Komatsu PC medium excavator series including PC160-7/PC160LC-7. We supply complete boom, arm and bucket cylinder assemblies with mature forging, honing and heat treatment craft, plus full-process strict quality control. Our aftermarket hydraulic cylinders are exported worldwide all year round, winning long-term trust and consistent positive feedback from global machinery spare parts dealers.
Q1: Can this bucket cylinder fit Komatsu PC160-6 or PC180-7 excavators?
A: No. Different Komatsu excavator generations and models adopt exclusive part numbers and unique structural dimensions without interchangeability. Please confirm your complete machine model before placing orders.
Q2: Does the standard package include the matching seal repair kit?
A: Seal repair kit is not included in standard delivery. You can purchase the dedied supporting seal kit separately, and we will offer a competitive combined order quotation.
Q3: How is the cylinder packed for long-distance ocean transportation?
A: Anti-rust oil filled into cylinder inner cavity, anti-rust grease evenly coated on piston rod surface. The whole cylinder wrapped with thick waterproof PE film and packed in reinforced export plywood cases to avoid scratch, collision and moisture damage during long sea transit.
Q4: Are there tiered volume discounts for purchasing a full set of boom + arm + bucket cylinders for PC160-7 series?
A: Yes. Complete working device cylinder set orders enjoy graded volume discounts. Consolidated FCL container shipment service is available to reduce total logistics expenditure.
Q5: What after-sales technical support if oil leakage occurs within the 12-month warranty period?
A: Please provide clear photos of leakage position plus your excavator serial number. We will arrange free seal replacement and professional remote troubleshooting guidance promptly.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2013
Total Annual:
$28000000-$41660000
Employee Number:
1200~1300
Ecer Certification:
Verified Supplier
Since 2013 Excavator Hydraulic Parts Manufacturer & Global Supplier Since 2013 Belparts Machinery Limited — Your Trusted Partner in Excavator Hydraulic Parts Who We Are Founded in September 2013 and headquartered in Guangzhou, China's premier engineering machinery hub, Belparts ha... Since 2013 Excavator Hydraulic Parts Manufacturer & Global Supplier Since 2013 Belparts Machinery Limited — Your Trusted Partner in Excavator Hydraulic Parts Who We Are Founded in September 2013 and headquartered in Guangzhou, China's premier engineering machinery hub, Belparts ha...
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