Product Overview
This XJL-125 through-hole trailer guide arm is a core suspension trailing arm for heavy-duty semi-trailers, marked with 56×100 rubber bushing specification and 550mm center distance. It adopts through-hole design at the connecting end, convenient for bolt penetration installation and later maintenance.
Equipped with pre-pressed integrated rubber bushing, this curved forged arm delivers stable load-bearing and shock absorption performance, widely used for logistics container trailers, flatbed freight trailers and long-distance transport fleets. We support OEM & ODM customization for global trailer parts wholesalers, axle manufacturers and fleet repair factories.
🏭About Zhengzhou Haishuo Automotive Parts Co., Ltd.
Production Capacity: Over 4,000 tons of leaf springs in stock, enabling rapid order fulfillment
Global Reach: Exported to over 100 countries and regions, including North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and Western Europe
OEM/ODM Services: Custom manufacturing available for private label, OEM, and aftermarket projects
Quality Assurance: Backed by SGS audit certification, with dedicated QA/QC inspectors ensuring every product meets international standards
Comprehensive Product Line: Our catalog includes heavy-duty, conventional, parabolic, and trailer leaf springs, plus complete accessories like U-bolts, bushings, clips, and shackles
Leaf Spring Technical Parameters
| Item | Specification |
|---|---|
| Material | 50CrVA / 51CrV4 / 55CrMnA / 60Si2Mn |
| Width | 60mm – 120mm |
| Thickness | 6mm – 30mm |
| Load Capacity | 500kg – 20,000kg |
| Surface Treatment | Painting / E-coating |
Basic Product Specifications
- Model No.: XJL-125
- Structure Feature: Through hole type rear guide arm, pre-assembled rubber bushing
- Bushing Spec: 56×100
- Center Distance: 550mm
- Material: High tensile forged alloy steel + wear-resistant natural rubber bushing
- Surface Finish: Black anti-rust electrostatic spraying
- Application: General heavy-duty semi-trailer, container transport trailer, flatbed cargo trailer
- Service: OEM aftermarket replacement, factory direct export, flexible bulk order support
📦Packaging, Shipping & Terms
Packaging: Standard export wooden crates or cartons with protective wrapping to prevent damage during transit
Shipping Ports: Qingdao Port, Tianjin Port and LianYun Port
Lead Time: 30 days (peak season) / 30 days (off season)
Accepted Incoterms: FOB, EXW, DDP, CIF, CFR
Payment Terms: L/C, T/T, D/P, PayPal, Western Union, small-amount payment options available
After-Sales Support: Professional sales and technical team providing order follow-up, product consultation, and after-sales service
Wide Application
Why Choose Our Leaf Springs
- Manufactured using high-strength alloy steel (SUP9 / 60Si2Mn)
- Heat-treated for improved hardness and fatigue resistance
- Shot peening surface treatment for longer service life
- Strict load and fatigue testing before shipment
- OEM interchangeable fitment with Dongfeng systems
- Stable performance under heavy-duty working conditions
FAQ
Q1: Is this part OEM or aftermarket?
A: It is an OEM-compatible replacement designed for Dongfeng truck suspension systems.
Q2: What material is used in this leaf spring?
A: High-strength alloy steel such as SUP9 or 60Si2Mn.
Q3: Can you produce customized leaf springs?
A: Yes, OEM and customized production is available.
Q4: What is your delivery time?
A: Typically 20–30 days depending on order quantity.
Q5: What vehicles is it compatible with?
A: It is suitable for various Dongfeng heavy-duty truck platforms.
Common Problems of Worn Leaf Springs
Vehicle tilting or sagging on one side
Reduced load-carrying capacity
Excessive vibration during driving
Visible cracks or deformation on spring leaves
When to Replace Leaf Springs
Leaf springs should be replaced when fatigue cracks, deformation, or reduced elasticity are observed. Delayed replacement may affect vehicle safety and suspension performance.
Important Notes
This product is an aftermarket replacement part, not an original OEM part. It is designed to fit the specified applications as a direct replacement component.
We recommend professional installation by a qualified technician to ensure proper fit, alignment, and safety.
contact us with your vehicle details or custom requirements, and our team will assist you in finding the right leaf spring solution.
