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Air Spring Assembly OE 2918020-H04B2 for Dongfeng GX&KX | Genuine Truck Part

This is a genuine air spring assembly (OE:2918020-H04B2) specially designed for Dongfeng GX&KX heavy-duty trucks, serving as a critical component of the air suspension system to provide variable spring rate and shock absorption. It features 100% direct fit with original chassis and axle interfaces, requiring no modification during installation. Constructed from high-strength aluminum alloy top cover and wear-resistant multi-layer rubber bellows with integrated air valve, this air spring is certified by Dongfeng original factory standards. Third-party durability tests confirm it features exceptional air tightness, fatigue resistance and load capacity, operating stably across -40℃ to 85℃. With its intelligent height adjustment and superior damping performance, it effectively ensures stable vehicle handling, reduces road impact and enhances driver comfort for heavy-duty truck operation.

PRODUCT DESCRIPTION

01

Aluminum Alloy Top & Flexible Rubber Bellows

This air spring assembly OE 2918020-H04B2 is manufactured strictly to Dongfeng GX&KX original design specifications, adopting a precision-machined aluminum alloy top cover that provides high rigidity and heat dissipation, while the main body is crafted from high-grade multi-layer rubber bellows with excellent flexibility and fatigue resistance. The product features an integrated high-precision air valve that allows quick inflation and deflation, enabling adjustable suspension height to adapt to different load conditions. The seamless bonding of metal and rubber components eliminates delamination risks, ensuring long-term durability. It adopts a 1:1 original dimensional design, with precise mounting flanges and interface tolerances that perfectly match the truck’s chassis and axle, ensuring a secure, vibration-free fit. This robust design combines high load capacity and flexible damping, making it the ideal OEM replacement for Dongfeng GX&KX heavy-duty trucks.

02

Suspension Failure, Air Leakage & Rough Rides

Fully compatible with all applicable Dongfeng GX&KX truck models, this air spring assembly can be quickly verified via OE 2918020-H04B2 to ensure accurate matching. It solves multiple common failures caused by low-quality aftermarket air springs: inferior rubber leading to cracking and air leakage, poor metal-rubber bonding causing delamination, weak air valve structure leading to pressure loss, and insufficient load capacity resulting in suspension collapse. A faulty air spring will cause unstable vehicle handling, rough rides leading to driver fatigue, and even rear axle damage—posing a serious threat to driving safety and fleet operation. By using this genuine heavy-duty air spring, users can eliminate suspension failure, air leakage and rough ride problems, ensuring reliable axle performance.

03

OEM Certification & Strict Fatigue Testing

As a key component for heavy-duty truck suspension systems, this air spring meets Q/DFL 6020-2021 Dongfeng automotive parts quality standards and has passed authoritative third-party tests for air tightness, load capacity and fatigue life. Test data shows the air spring maintains zero leakage after 100,000 cycles of inflation/deflation, withstands a dynamic load rating of ≥150kN, and remains functional after 500 hours of salt spray testing. Each unit undergoes 100% dimensional inspection, air tightness testing and load testing before leaving the factory, ensuring complete consistency with original factory parts in performance, durability and fit. It performs reliably in all operating conditions, with strong resistance to fatigue, oil and temperature fluctuations. Backed by complete factory traceability and quality certification, it provides users with long-term, trustworthy suspension performance.

04

Genuine Supply, Easy Installation & Fleet Comfort Upgrade

We are an authorized supplier of genuine Dongfeng GX&KX parts, providing original factory quality suspension components, air springs and axle assemblies for global fleet operators, repair shops and distributors. This air spring assembly OE 2918020-H04B2 is supplied with full original factory labeling and traceable codes, ensuring 100% authenticity. Its plug-and-play design with standard mounting brackets allows for quick, tool-friendly installation without professional modification, greatly saving labor and time costs. The integrated air valve with quick-connect fitting streamlines the inflation/deflation process, further reducing replacement time. We provide a 12-month quality warranty against leakage, cracking and delamination under normal use. Our professional technical team provides 24/7 model matching, installation guidance and after-sales consultation. We support bulk wholesale with competitive pricing and stable supply for large fleet customers. Choosing this genuine air spring improves fleet reliability, reduces downtime and maintenance costs, and provides a safe, comfortable and cost-effective suspension solution for your Dongfeng GX&KX fleet.

TECHNICAL SUPPORT

1. Accessories selection consultation

- Provide ** intelligent selection tools ** (such as parts matching query system), input the vehicle model VIN code or engine model to match the corresponding parts number, reducing the selection error rate.


The technical team is available online 7×12 hours to answer technical questions about accessories (such as material compatibility and installation processes).


2. Customized development support

We offer specialized R&D services for special market demands (such as heat dissipation accessories for high-temperature regions in the Middle East and dedicated suspension components for road conditions in Africa), and complete sample delivery within six weeks.


3. Training and Technical materials

Provide remote/on-site training for the customer's after-sales team (such as diagnosis of electrical control accessories and DPF regeneration operation), along with multilingual versions of the "Accessories Installation Manual" and "Troubleshooting Guide".


4. Quality Traceability and Improvement

Through the QR code traceability system (one product, one code), track the production batch of accessories and the source of raw materials, respond quickly to quality complaints and initiate improvement processes.

AFTER-SALES AND LOGISTICS SUPPORT

After-sales service

After-sales service

Quality Assurance Policy


-The warranty period for original factory parts is 12 months (counting from the date of signature for receipt), covering material defects, process issues, and man-made damage.


- Provide "Localized Express repair Service" : Cooperate with third-party repair networks in markets such as Southeast Asia and the Middle East, and deliver emergency parts to designated repair points within 4 hours.


Return and Exchange Process


-The customer is required to submit the test report (such as a third-party appraisal) within the warranty period. After confirmation by Dongfeng, a reissue or refund will be arranged within 5 working days.

Logistics support

Logistics support

Warehouse Layout


-Five major regional accessory centers have been established globally (Southeast Asia, the Middle East, Africa, South America, and Europe) to achieve "next-day delivery" for mainstream accessories (covering customers within the regions).


Emergency Logistics Plan


-Emergency parts can be directly delivered within 48 hours via the "Dongfeng Exclusive Aviation Special Line" (such as engine ECU, brake valves and other key components).


Packaging Optimization

-Use shockproof and moisture-proof packaging (such as honeycomb cartons + pearl cotton), and reinforce fragile parts (such as glass, sensors), keeping the damage rate within 0.5%.