307SSR Hydraulic Bucket Cylinder for Excavator Spare Parts 105-6459 1056459 Aftermarket High Quality

| Hydraulic Parts | Hydraulic Pump | Final Drive | Travel Reduction |
| Swing Motor | Swing Reduction | Control Valve | Gear Parts |
| Slew Bearing | Engine Assembly | Hydraulic Cylinder | ECU |
This reliable aftermarket hydraulic bucket cylinder is custom manufactured as a direct interchangeable replacement for 307SSR mini excavators. As the key hydraulic execution component of the front working attachment, it drives the bucket to complete digging, material grabbing and dumping operations efficiently. It is widely applied in urban municipal renovation, landscaping, pipeline laying, small foundation construction and light earthmoving projects.
All products are strictly produced according to CAT original OEM technical standards, with fully consistent installation dimensions, pin hole spacing and hydraulic port layout. Direct bolt-on installation can be finished on site without cutting, welding or any secondary modification work.
| Item | Specification |
|---|---|
| Product Name | Hydraulic Bucket Cylinder |
| Applicable Model | CAT 307SSR Mini Excavator |
| OEM Part Number | 105-6459, 1056459 |
| Product Grade | Brand New High-Quality Aftermarket |
| Warranty | 12 months against manufacturing defects |
| MOQ | 1 unit, ample stock for immediate delivery |
| QC Standard | ISO9001 certified, full hydraulic pressure and cyclic fatigue tests before shipment |

| # | Part No. | Description | Qty |
|---|---|---|---|
| All | 1704163 | LINKAGE GROUP | 1 |
| Spec Item | Data |
|---|---|
| Bore Diameter | 80mm |
| Piston Rod Diameter | 55mm |
| Working Stroke | 1040mm |
| 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 and anti-deformation performance |
| Matching Seal Kit PN | 105-6459K |
| Working Temperature | -25℃ ~ +85℃ |
| Structure | Double ear lugs with quenched copper wear bushings, built-in buffer device to reduce impact during reciprocating operation |
- Dual Part Number Interchangeable Fitment: 105-6459 and 1056459 represent the identical cylinder part, fully matching original assembly dimensions, seamlessly connected with bucket linkages and hydraulic pipelines to guarantee stable long-time continuous operation.
- Optimized Light-Medium Load Reinforced Structure: Thickened cylinder barrel and connecting lugs are tailored for mini excavator frequent working scenarios, resisting periodic loads and minor collisions on construction sites and extending service life effectively.
- Multi-Round Strict Pre-Delivery Inspection: Each finished cylinder undergoes repeated full-stroke cycle tests and high-pressure airtight leak detection, completely eliminating hidden risks of internal and external oil leakage.
- Outstanding Cost Performance: Delivers the same stability and durability as genuine CAT spare parts, greatly lowering repeated procurement costs for repair shops and spare parts distributors.
- Flexible Global Logistics Support: In-stock goods can be dispatched within 3 working days. Air freight meets urgent delivery demands, while sea freight is the most economical option for bulk wholesale orders.
Our factory has more than ten years of mature experience in R&D and manufacturing hydraulic cylinders for CAT mini excavator series. We supply complete boom, arm and bucket cylinders covering 307SSR and other mainstream CAT small excavator models. Supported by sophisticated production craftsmanship and full-process strict quality control systems, our products are exported to aftermarket markets across Africa, Southeast Asia and the Middle East year-round, gaining long-term trust and consistent favorable feedback from global partners.
A: No. Different CAT small excavator models adopt exclusive part numbers and unique structural dimensions, which cannot be interchanged. Please confirm your complete equipment model before placing orders.
A: The seal repair kit is not included in standard delivery. You can purchase the dedicated supporting seal kit separately, and we will offer a competitive combined order quotation.
A: Anti-rust oil is injected into the cylinder inner cavity, anti-rust grease is evenly coated on the piston rod surface; the whole cylinder is wrapped with waterproof PE film and packed in reinforced export plywood cases to avoid collision and moisture damage during long ocean transit.
A: Yes. Complete cylinder set orders enjoy graded preferential pricing. Consolidated container shipment service is also available to lower customers' total logistics expenses.
A: Please provide clear photos of the leakage position and the excavator serial number. We will arrange free seal replacement and professional remote troubleshooting guidance in a timely manner.
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