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322BL Hydraulic Boom Cylinder | PN:118-4116 / 1184116 | Premium Aftermarket Replacement
1. Basic Product Info
This heavy-duty aftermarket hydraulic boom cylinder is precisely produced as a direct interchangeable replacement part for erpillar 322BL excavators. As the core hydraulic power component of the front working assembly, it controls the lifting and lowering of the boom to finish heavy excavation, bulk material hoisting, site leveling and loading tasks. Widely used in stone quarries, municipal upgrading, highway construction and medium-large earthmoving projects.
All products are manufactured strictly in accordance with erpillar OEM technical standards, with fully consistent mounting dimensions, pin hole spacing and hydraulic port layout. Direct bolt-on installation can be completed on site without cutting, welding or any secondary modifi ion work.
| Item |
Specifi ion |
| Product Name |
Hydraulic Boom Cylinder |
| Applicable Model |
erpillar 322BL Excavator |
| OEM Part Number |
118-4116, 1184116 (two codes correspond to one cylinder) |
| 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 and cyclic fatigue tests before delivery |
2. Core Technical Parameters
| # |
Part No. |
Description |
Qty |
| All |
1184116 |
CYLINDER & SEAL GROUP-BOOM |
1 |
| 1 |
7X4803 |
SEAL (ID=90.00mm); (OD=106.15mm) |
4 |
| 2 |
1184166 |
CYLINDER GROUP-BOOM |
1 |
| 3 |
3B8489 |
FITTING-GREASE; (FAN AND ALTERNATOR DRIVE) |
1 |
|
---- |
SEPARATE ILLUSTRATION |
|
| Spec Item |
Data |
| Bore Diameter |
132mm |
| Piston Rod Diameter |
86mm |
| 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 and anti-deformation performance |
| Matching Seal Kit PN |
118-4116K |
| Working Temperature |
-25℃ ~ +85℃ |
| Structure |
Double ear lugs with quenched copper wear bushings, built-in buffer device to reduce impact during recipro ing operation |
3. Product Advantages
- Dual Part Number Universal Fitment
118-4116 and 1184116 are interchangeable part numbers for the same boom cylinder. All assembly dimensions fully match original parts, connecting seamlessly with boom linkages and hydraulic pipelines to ensure stable continuous heavy-load operation.
- Medium-Heavy Load Reinforced Structure
Thickened cylinder barrel and connecting lugs are optimized for harsh quarry and construction environments, resisting long-term cyclic loads and accidental collisions to significantly extend service life.
- Multi-Round Strict Pre-Delivery Inspection
Each finished cylinder undergoes repeated full-stroke cycle tests and high-pressure airtight leak detection, completely eliminating hidden internal and external oil leakage hazards.
- High Cost Performance
It owns the same stability and service life as genuine spare parts, effectively cutting repeated procurement costs for repair shops and spare parts wholesalers.
- 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 choice for bulk wholesale orders.
4. Supplier Brief
Our factory has more than ten years of mature experience in R&D and manufacturing hydraulic cylinders for classic excavator series including 322BL. We supply complete boom, arm and bucket cylinder assemblies with sophisti ed production craftsmanship and full-process strict quality control systems. Our products are exported to aftermarket markets across Africa, Southeast Asia and the Middle East all year round, winning long-term trust and consistent favorable feedback from global partners.
5. FAQ
Q1: Can this boom cylinder fit 320BL or 325BL excavators?
A: No. Different excavator models adopt exclusive part numbers and unique structural dimensions without interchangeability. Please confirm your complete excavator model before placing orders.
Q2: Does the standard package include the matching seal repair kit?
A: The seal repair kit is not included in standard delivery. You can purchase the dedi ed supporting seal kit separately, and we will offer a competitive combined order quotation.
Q3: What packaging is used for long-distance overseas sea transportation?
A: Anti-rust oil is injected into the cylinder inner cavity, anti-rust grease 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 ocean transit.
Q4: Are there tiered volume discounts for purchasing a full set of boom + arm + bucket cylinders?
A: Yes. Complete cylinder set orders enjoy graded preferential pricing. Consolidated container shipment service is also available to lower total logistics expenses.
Q5: What after-sales technical support can be provided if oil leakage occurs within the warranty period?
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 promptly.
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