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BELPARTS MACHINERY LIMITED

  • China,Guangzhou
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China PC160LC-7 PC160-7 Hydraulic Bucket Cylinder for komatsu Excavator Spare Parts
China PC160LC-7 PC160-7 Hydraulic Bucket Cylinder for komatsu Excavator Spare Parts

  1. China PC160LC-7 PC160-7 Hydraulic Bucket Cylinder for komatsu Excavator Spare Parts
  2. China PC160LC-7 PC160-7 Hydraulic Bucket Cylinder for komatsu Excavator Spare Parts
  3. China PC160LC-7 PC160-7 Hydraulic Bucket Cylinder for komatsu Excavator Spare Parts

PC160LC-7 PC160-7 Hydraulic Bucket Cylinder for komatsu Excavator Spare Parts

  1. MOQ: 1 PCS
  2. Price: Negotiation
  3. Get Latest Price
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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  1. Product Details
  2. Company Details

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 cylinderPC160LC-7 hydraulic cylinder spare partaftermarket Komatsu bucket cylinder
Komatsu PC160-7 / PC160LC-7 Hydraulic Bucket Cylinder | PN:21K-70-73120 | Premium Aftermarket Replacement
1. Basic Product Info

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
2. Core Technical Parameters

# 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
3. Product Advantages
  1. Dual Model Universal Fitment
    Perfectly compatible with both standard-track PC160-7 and long-track PC160LC-7. All assembly sizes, lug spacing and oil port positions fully match original PN 21K-70-73120 cylinder, seamlessly connecting bucket linkages and hydraulic pipelines for stable continuous medium-load construction operation.
  2. Medium-Load Reinforced Optimized Structure
    Thickened cylinder barrel and joint lugs are upgraded for frequent daily construction scenarios, resisting long-term cyclic loads and minor collision abrasion to extend overall service life effectively.
  3. Multi-Round Strict Pre-Delivery Inspection
    Each finished cylinder undergoes full-stroke reciproing cycle test and high-pressure airtight leak detection, completely eliminating hidden internal and external oil leakage risks.
  4. Excellent Cost Performance
    Delivers the same stability and service lifespan as genuine Komatsu OEM spare parts, greatly cutting repeated procurement costs for repair shops, equipment rental companies and global spare parts wholesalers.
  5. Flexible Global Logistics Support
    In-stock items can be dispatched within 3 working days. Air freight handles urgent breakdown rush orders; sea freight offers cost-effective bulk wholesale shipping to Africa, Southeast Asia, Middle East and Latin American markets.
4. Supplier Brief

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.

5. FAQ

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

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • 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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Get in touch with us

  • Reach Us
  • BELPARTS MACHINERY LIMITED
  • 429-432,No.268 Zhongshan Avenue East,Huangpu District,Guangzhou
  • https://www.hydraulic-excavatorparts.com/

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