SHACMAN Front Leaf Spring DZ9X259521224
Searching for direct factory replacement SHACMAN Front Leaf Spring DZ9X259521224 assemblies to supply heavy commercial fleets, long-haul freight carriers, or regional automotive spare parts inventory? Engineered with premium high-tensile alloy spring steel, 3-leaf parabolic variable-thickness taper technology, and advanced thermal processing, our lightweight front suspension springs deliver superior vibration damping, maximum driver comfort, and extended service life under demanding highway and regional haulage routes. Certified under strict ISO/TS 16949 quality management systems with European CE compliance, Haishuo is a direct OEM factory manufacturer supplying truck parts importers, fleet operators, and distributors worldwide.
Product Overview
The SHACMAN Front Leaf Spring DZ9X259521224 is a high-performance lightweight parabolic front suspension component engineered specifically for SHACMAN heavy-duty commercial trucks. Positioned on the front steer axle, this 3-leaf tapered parabolic spring pack absorbs high-frequency road impacts, optimizes steering geometry, and reduces total vehicle kerb weight for enhanced fuel economy.
Forged from premium alloy spring steel, every SHACMAN Leaf Spring DZ9X259521224 manufactured by Haishuo features precision-engineered plain slipper ends to ensure smooth sliding friction against axle mounting brackets. Each leaf undergoes computerized quenching and tempering, precision center-hole alignment, and high-stress surface shot peening to eliminate internal metal fatigue, prevent leaf cracking, and maintain initial free arch height under continuous dynamic load conditions across Russia, Central Asia, Southeast Asia, Africa, and the Middle East. We offer direct wholesale bulk manufacturing as well as custom engineering based on client technical drawings or physical samples.
Applicable Models
Key Features & Product Highlights
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100% Direct OEM Fitment (DZ9X259521224): Precision-engineered dimensions matching original SHACMAN chassis brackets and front axle U-bolt hardware.
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Lightweight 3-Leaf Parabolic Design: Variable-thickness parabolic leaf taper minimizes inter-leaf friction, reduces chassis dead weight, and improves ride comfort.
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High-Tensile Forged Alloy Steel: Manufactured from premium alloy spring steel (51CrV4 / 60Si2Mn / SUP9) for maximum yield strength, impact toughness, and fracture resistance.
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Computerized Thermal Processing & Shot Peening: Advanced heat treatment and shot peening eliminate surface micro-cracks to maximize flexural cycle fatigue life.
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Precision Plain Slipper Ends: Smooth end contact surfaces ensure low wear and smooth axle articulation inside trunnion slide brackets.
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Anti-Corrosion E-Coating Finish: Protected with high-durability black electrophoretic paint (E-coating) to resist road salt, rain, mud, and harsh environmental corrosion.
Technical Specifications
| Item | Specification |
| Product Name | SHACMAN Front Leaf Spring DZ9X259521224 |
| Primary Keyword | SHACMAN Front Leaf Spring DZ9X259521224 |
| OEM Reference Number | DZ9X259521224 |
| Target Vehicle Brand | SHACMAN Truck |
| Suspension Location | Front Axle Suspension / Steer Axle Assembly |
| Structure Type | Tapered Parabolic 3-Leaf Assembly (Plain Ends) |
| Material Grade | Premium Alloy Spring Steel (51CrV4 / 60Si2Mn) |
| Manufacturing Process | CNC Shearing, Parabolic Taper Rolling, Heat Treatment, Shot Peening, E-Coating |
| Surface Finish | Matte Black Electrophoretic Coating (E-Coating) |
| Quality Certification | ISO/TS 16949 Certified, CE Compliance, SGS Tested |
Dedicated Vehicle Application & Model Compatibility
Our SHACMAN Front Leaf Spring DZ9X259521224 is engineered specifically for popular SHACMAN heavy-duty commercial tractor units and cargo trucks:
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SHACMAN Delong X5000 Series: High-end long-haul 4×2, 6×2, and 6×4 tractor trucks.
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SHACMAN Delong X3000 Series: Standard freight tractors, regional transport haulers, and cargo chassis.
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SHACMAN Delong M3000 / M3000 S Series: Highway logistics and regional distribution trucks.
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Cross-Reference OEM Part Numbers: DZ9X259521224, DZ9X259521224A.
(Because front parabolic spring pack specifications can vary depending on engine weight and axle capacity ratings, please verify your exact OEM part numbers or physical sample specs with our technical sales team.)
Common Signs Your SHACMAN Front Spring Needs Replacement
Routine inspection of front steer axle leaf springs is critical to ensure vehicle stability, precise steering control, and tire longevity. Replace your SHACMAN Front Leaf Spring DZ9X259521224 if you observe the following issues:
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Front End Sagging or Uneven Ride Height: The truck cab sits lower on one side due to lost arch elasticity in the parabolic blades.
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Harsh Cab Vibration & Bouncing: Increased cabin vibration and rough ride quality caused by a cracked or weakened parabolic spring leaf.
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Visible Blade Fractures or Cracks: Visible fracture lines near the center pin clamp area or along the tapered spring body.
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Unstable Steering & Front Wheel Shimmy: Vehicle wandering or uneven front steer tire tread wear caused by front axle misalignment.
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Metallic Clunking Sounds Over Bumps: Metallic knocking noises from the front suspension caused by shifted leaves or worn slide brackets.
Technical Inspection & Quality Control
Every SHACMAN Front Leaf Spring DZ9X259521224 undergoes strict multi-stage quality control checks matching original equipment manufacturer standards:
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3D Geometry & Arch Verification: Precision laser measurement of total length, free arch height, leaf thickness gradient, and center pin positioning.
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Hydraulic Load & Dynamic Recovery Testing: Tested on dynamic hydraulic presses to verify exact spring rate, load-deflection curve, and elastic recovery under max load.
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Metallurgical & Hardness Testing: Hardness testing verifies uniform heat treatment grain structure and dynamic tensile resilience across all stacked leaves.
Manufacturing Process
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Raw Steel Inspection: High-tensile alloy spring steel flat bars undergo chemical composition analysis and tensile strength testing.
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CNC Cutting & Taper Rolling: Precision shearing and CNC longitudinal parabolic taper rolling for optimized stress distribution.
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Quenching, Tempering & Shot Peening: Computerized thermal treatment maximizes structural toughness, followed by stress shot peening to eliminate surface micro-cracks.
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Coating & Center Assembly: Leaves receive a durable black E-coating finish before precision assembly with heavy-duty center hardware.
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Final Inspection & Packaging: 100% visual, dimensional, and dynamic load-deflection checks prior to export shipping.
Packaging & Export Shipping
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Anti-Rust Protection: Treated with rust-inhibiting coating and wrapped in heavy moisture-proof plastic film.
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Non-Fumigation Plywood Pallets: Secured on heavy-duty non-fumigation export pallets for rapid customs clearance at destination ports.
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High-Tensile Steel Strapping: Bound firmly with heavy steel bands and protective corner guards to guarantee zero shifting during ocean transit.
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Container Space Optimization: Customized packing plans to maximize loading capacity in 20ft and 40ft HQ containers.
OEM & Custom Wholesale Manufacturing Services
We provide comprehensive OEM/ODM production capabilities for spare parts importers, fleet managers, and SHACMAN service centers:
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Direct manufacturing matching part numbers DZ9X259521224 and DZ9X259521224A.
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Custom leaf thickness profile, arch height, and heavy-duty load ratings.
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Private labeling, laser OEM part number engraving, and customized export cartons.
Frequently Asked Questions (FAQ)
Q1: Is part number DZ9X259521224 suitable for SHACMAN X5000 trucks?
A: Yes! Part number DZ9X259521224 is an original SHACMAN specification designed for the front steer axle of Delong X5000 and X3000 heavy tractors.
Q2: What is the advantage of a 3-leaf parabolic spring over multi-leaf springs?
A: Parabolic springs offer lighter overall weight, reduced inter-leaf friction, smoother ride quality, and better fuel efficiency for highway logistics.
Q3: What steel grade is used for DZ9X259521224?
A: We use premium high-tensile alloy spring steels such as 51CrV4 and 60Si2Mn to ensure exceptional tensile strength and long flexural fatigue life.
Q4: Do you supply sample units for fitment testing?
A: Yes, sample units are available for distributors and fleet owners to verify total length, arch height, and mounting fitment prior to placing bulk container orders.
Q5: What is the standard production lead time for bulk export orders?
A: Standard manufacturing lead time typically ranges from 15 to 25 days depending on total order volume, customized tooling needs, and surface finish choices.
Request a Quote
Keep your SHACMAN commercial fleets and long-haul tractors operating with maximum comfort and efficiency! Contact our technical sales team today to request a competitive wholesale quote for our ISO/TS 16949 certified SHACMAN Front Leaf Spring DZ9X259521224 products!
