BELPARTS MACHINERY LIMITED
| Certifiion | CE |
| Part name | Hydraulic Arm Cylinder |
| Part number | 22U-63-02623 |
| Quality | Aftermarket High Quality |
| Supply Ability | 100 PCS / Months |
| Shipment | DHL FEDEX TNT EMS UPS / Ses / Air |
| 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 |
| Model | PC228USLC-3 PC228US-3 |
| Packaging Details | Wooden Case Packing |
| Appliion | Excavator |
| Model Number | PC228USLC-3 PC228US-3 |
| Brand Name | Belparts |
| Place of Origin | China |
View Detail Information
Explore similar products
EC290 EC290NLC Hydraulic Boom Cylinder for Excavator Spare Parts VOE14530664
350L 375 375L Hydraulic Boom Cylinder for Excavator Spare Parts 1140596
SK210-8 Hydraulic Boom Cylinder for Kobelco Excavator Spare Parts YN01V00151F2
ZX200-3 Hydraulic Boom Cylinder for Hitachi Excavator Spare Parts 9272808
Product Specification
| Certifiion | CE | Part name | Hydraulic Arm Cylinder |
| Part number | 22U-63-02623 | Quality | Aftermarket High Quality |
| Supply Ability | 100 PCS / Months | Shipment | DHL FEDEX TNT EMS UPS / Ses / Air |
| 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 | Model | PC228USLC-3 PC228US-3 |
| Packaging Details | Wooden Case Packing | Appliion | Excavator |
| Model Number | PC228USLC-3 PC228US-3 | Brand Name | Belparts |
| Place of Origin | China | ||
| High Light | Komatsu excavator hydraulic cylinder ，aftermarket hydraulic arm cylinder ，PC228US-3 excavator spare parts | ||
This heavy-duty aftermarket hydraulic stick cylinder is precision manufactured as a direct OEM replacement for Komatsu PC228US-3 standard short-tail excavator and PC228USLC-3 long-track zero-swing excavator. As the core hydraulic driving component of front working equipment, it controls arm extension and retraction to complete excavation, rock grabbing, material loading and site leveling tasks. It is widely used in urban narrow-site construction, municipal renovation, pipeline laying and medium-sized quarry earthmoving projects.
All cylinders are strictly produced in accordance with 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 Arm (Stick) Cylinder |
| Applicable Model | Komatsu PC228US-3, PC228USLC-3 Zero Tail Excavator |
| OEM Part Number | 22U-63-02623 |
| 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 |
|---|---|---|---|
| G-1 | (22U-63-X9320) | CYLINDER GROUP,(NATURAL YELLOW) | 1 |
| ---- | ==================== | ||
| 1 | 22U-63-02623 | CYLINDER ASS'Y | 1 |
| 1 | 22U-63-62742 | Cylinder | 1 |
| 2 | 20Y-70-21360 | Bushing | 2 |
| 3 | 07145-00080 | SEAL,DUST (KIT) | 4 |
| 4 | 22U-63-62721 | ROD,PISTON | 1 |
| 5 | 707-27-13961 | HEAD,CYLINDER | 1 |
| 6 | 07179-13109 | RING, SNAP | 1 |
| 7 | 707-56-95510 | SEAL,DUST (KIT) | 1 |
| 8 | 707-52-90720 | Bushing | 1 |
| 9 | 707-51-95030 | PACKING,ROD (KIT) | 1 |
| 10 | 07000-15125 | O-RING, TRANSFER GEAR | 1 |
| 11 | 707-35-91370 | RING,BACK-UP (KIT) | 1 |
| 12 | 707-51-95640 | RING,BUFFER (KIT) | 1 |
| 13 | 01010-81875 | BOLT (KIT) | 12 |
| 14 | 707-41-11840 | Washer | 12 |
| 15 | 707-36-13731 | Piston | 1 |
| 16 | 707-44-13280 | RING,PISTON (KIT) | 1 |
| 17 | 707-39-13510 | RING,WEAR (KIT) | 2 |
| 18 | 707-44-13920 | Ring | 2 |
| 19 | 707-71-61040 | PLUNGER | 1 |
| 20 | 07000-15085 | O-RING,(F5350-63A0 -4 ) | 1 |
| 21 | 707-35-90960 | RING,BACK-UP (KIT) | 2 |
| 22 | 01310-01216 | SCREW,NYLON | 1 |
| 23 | 707-71-70250 | PLUNGER | 1 |
| 24 | 07020-00000 | FITTING, GREASE - UPPER HINGE PIN | 1 |
| 25 | 707-71-32770 | COLLAR | 1 |
| 26 | 707-35-91370 | RING,BACK-UP (KIT) | 2 |
| 27 | 07000-15125 | O-RING, TRANSFER GEAR | 1 |
| 28 | 04260-00635 | BOWL, CHECK VALVE | 12 |
| 29 | 707-71-91270 | Cap | 1 |
| 29A | 707-83-13010 | Valve | 1 |
| 29B | 07750-01628 | Spring | 1 |
| 29C | 707-87-14070 | Plug | 1 |
| 29D | 07002-12034 | O-RING,(FOR WITHOUT BRAKE ASSISTOR) | 1 |
| 30 | 205-63-61171 | Tube | 4 |
| 31 | 20D-62-17860 | Elbow | 1 |
| 32 | 01435-01055 | BOLT, MOUNT DRYER TO BRACKET AND FRAME | 2 |
| 33 | 01435-01040 | BOLT,(SHIM 3-PIECE) | 2 |
| 34 | 07000-13030 | O-RING,BOOM (FOR 50 FEET LONG FRONT) | 1 |
| 35 | 01010-81080 | BOLT,(WITH CORROSION RESISTOR) | 4 |
| 36 | 01643-31032 | WASHER,(WITH AUTO EMERGENCY STEERING) | 4 |
| 37 | 07000-13035 | O-RING, UPPER COOLER INLET AND OUTLET PORTS | 1 |
| 38 | 22U-63-62791 | Bracket | 1 |
| 39 | 707-88-21260 | BAND | 1 |
| 40 | 01010-81035 | BOLT,(F4320-52A0 -5 ) | 2 |
| 41 | 01643-51032 | WASHER, (WITHOUT EMERGENCY STEERING) | 2 |
| 42 | 707-88-11560 | Plate | 1 |
| 43 | 07283-22738 | CLIP, SEAT | 2 |
| 44 | 01599-01011 | NUT,(WITH UNDER MIRROR) | 4 |
| 45 | 01643-31032 | WASHER,(WITH AUTO EMERGENCY STEERING) | 4 |
| ---- | ==================== | ||
| 46 | 707-99-57180 | SERVICE KIT | 1 |
| Spec Item | Data |
|---|---|
| Bore Diameter | 128mm |
| Piston Rod Diameter | 84mm |
| Working Stroke | 1380mm |
| 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 | 22U-63-02623K |
| Working Temperature | -25℃ ~ +85℃ |
| Structure Feature | Double reinforced ear lugs with quenched copper wear bushings, built-in buffer device to weaken reciproing impact and vibration noise during frequent narrow-space operation |
One cylinder fits both standard-track PC228US-3 and long-track PC228USLC-3 short-swing excavators. All assembly sizes, lug spacing and oil port positions fully match original PN 22U-63-02623 cylinder, seamlessly connecting arm linkages and hydraulic pipelines to ensure stable continuous medium-heavy load operation in compact construction environments.
Thickened cylinder tube and integrated lug plates are optimized for frequent narrow-site construction. It effectively resists long-term cyclic dynamic loads and accidental collisions with walls or stones, greatly extending service life.
Each finished cylinder undergoes repeated full-stroke reciproing cycle test and high-pressure airtight leak detection, completely eliminating hidden internal and external oil leakage faults.
It achieves the same stability, strength and service lifespan as genuine Komatsu OEM spare parts, effectively reducing repeated procurement costs for repair shops, urban construction equipment rental fleets and global spare parts wholesalers.
In-stock items can be dispatched within 3 working days. Air freight supports emergency breakdown rush orders; sea freight provides low-cost bulk wholesale shipping solutions for Africa, Southeast Asia and Middle Eastern construction markets.
Our factory has more than 10 years of mature experience in R&D and mass production of hydraulic cylinders for Komatsu US series zero-tail excavators including PC228US-3 / PC228USLC-3. We supply complete boom, arm and bucket cylinder assemblies with mature forging, precision honing and professional heat treatment craftsmanship, supported by 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.
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...
Get in touch with us
Leave a Message, we will call you back quickly!