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9050B Hydraulic Boom Cylinder for CASE Excavator Spare Parts 173782A1 Aftermarket High Quality

Place of Origin:China
Brand Name:Belparts
Certification:CE
Model Number:9050B
Minimum Order Quantity:1 PCS
Price:Negotiation
Payment Terms:L/C,D/A,D/P,T/T,TRADE ASSURANCE,WEST UNION,PAYPAL
Supply Ability:100 PCS / Months
Product Details
Highlight:

9050B hydraulic boom cylinder

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CASE excavator spare parts

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aftermarket hydraulic cylinder assy

Model: 9050B
Part Number: 173782A1
Part Name: Hydraulic Boom Cylinder
Application: Excavator
Condition: New
Quality: Aftermarket High Quality
Warranty: 1 Year
Shipment: DHL FEDEX TNT EMS UPS / Ses / Air
Emission Standards: Stage V
Product Description
CASE 9050B Hydraulic Boom Cylinder | PN:173782A1 | Premium Aftermarket Replacement
1. Basic Product Info

This heavy-duty aftermarket hydraulic boom cylinder is precision manufactured as a direct OEM replacement for CASE 9050B medium excavators. As the core hydraulic power component of the front working attachment, it controls boom lifting and lowering to handle excavation, bulk material lifting, land leveling and loading operations. Widely used in municipal renovation, highway construction, stone quarries and medium-scale earthmoving projects.

All cylinders are strictly produced in accordance with CASE original technical specifications, with consistent mounting dimensions, pin hole spacing and hydraulic port layout. Direct bolt-on installation without cutting, welding or any on-site secondary modification.


Item Specification
Product Name Hydraulic Boom Cylinder
Applicable Model CASE 9050B Excavator
OEM Part Number 173782A1
Product Grade Brand New High-Quality Aftermarket
Warranty 12 months against manufacturing defects
MOQ 1 unit, sufficient stock for fast delivery
QC Standard ISO9001 certified, full hydraulic pressure & cyclic fatigue testing before shipment
2. Core Technical Parameters

Spec Item Data
Bore Diameter 124mm
Piston Rod Diameter 81mm
Working Stroke 1310mm
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 & anti-deformation performance
Matching Seal Kit PN 173782A1K
Working Temperature -25℃ ~ +85℃
Structure Double ear lugs with quenched copper wear bushings, built-in buffer device to reduce impact during reciprocating movement
3. Product Advantages
  1. 100% OEM Exact Interchange Fitment
    All assembly sizes, lug spacing and oil port positions fully match original 173782A1 cylinder. Perfectly connects boom linkages and hydraulic hoses to maintain stable continuous medium-heavy load operation.
  2. Reinforced Medium-Heavy Load Structure
    Thickened cylinder tube and connection lugs are optimized for quarry and construction harsh working conditions, resisting long-term cyclic loads and accidental collisions to extend service life greatly.
  3. Multi-Round Strict Pre-Delivery Inspection
    Each finished cylinder undergoes full-stroke reciprocating cycle test and high-pressure airtight leak detection, completely eliminating internal & external oil leakage hidden hazards.
  4. High Cost Performance
    Delivers the same stability and service life as genuine CASE OEM spare parts, effectively cutting repeated procurement costs for repair shops and spare parts wholesalers.
  5. Flexible Global Logistics Support
    In-stock items can be dispatched within 3 working days. Air freight for urgent breakdown orders; sea freight for low-cost bulk wholesale shipments to Africa, Southeast Asia, Middle East and Latin America.
4. Supplier Brief

Our factory has over 10 years of professional experience in developing and manufacturing hydraulic cylinders for CASE excavator series, covering classic models like 9050B, CX series and older B series machines. We supply complete boom, arm and bucket cylinder assemblies with mature production craft and full-process strict quality control. Our aftermarket hydraulic cylinders are exported to global aftermarket markets year-round, winning long-term trust and consistent positive feedback from worldwide spare parts dealers.

5. FAQ
Q1: Can this boom cylinder fit other CASE models such as 9060B or CX160B?
A: No. Each CASE excavator model uses exclusive OEM part numbers and unique structural dimensions without interchangeability. Please confirm your complete machine model before ordering.
Q2: Does the standard package include the matching seal repair kit?
A: The seal repair kit is not contained in standard delivery. You can purchase the dedicated supporting seal kit separately, and we will offer a competitive combined order quotation.
Q3: How is the product packed for long-distance ocean transportation?
A: Anti-rust oil is injected into cylinder inner cavity, anti-rust grease evenly coated on piston rod surface. The whole cylinder is wrapped with waterproof PE film and packed in reinforced export plywood cases to avoid collision, scratch and moisture damage during long sea transit.
Q4: Are there tiered volume discounts when purchasing a full set of boom + arm + bucket cylinders for 9050B?
A: Yes. Complete working device cylinder set orders enjoy graded volume discounts. Consolidated container shipment service is available to lower total logistics expenses.
Q5: What after-sales technical support is available if oil leakage occurs within the 12-month warranty period?
A: Please provide clear photos of the leakage position plus your excavator serial number. We will arrange free seal replacement and professional remote troubleshooting guidance promptly.
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