Chassis system
Struggling with unstable power transmission in your Dongfeng KL truck’s chassis? This Ring Gear (OE:3501076-K20X2) – a genuine chassis system part – solves it. Made of 20CrMnTi hardened steel (HRC 58-62), it features precision-machined teeth (tolerance ±0.02mm). Directly compatible with all Dongfeng KL models, it bolts into factory differential mounting points without modifications. Certified by Dongfeng Commercial Vehicle, this ring gear ensures smooth power transfer, reducing chassis vibration – critical for long-haul fleet reliability.
Product Attributes
| Attribute | Details |
| OE Number | 3501076-K20X2 |
| Application | Dongfeng KL Truck (all series) |
| Product Type | Ring Gear (Chassis System) |
| Material | 20CrMnTi Hardened Steel |
| Hardness | HRC 58-62 |
| Tooth Tolerance | ±0.02mm |
| Certification | Dongfeng Commercial Vehicle Factory Certified |
| Installation Type | Direct Fit (OE Mounting Points) |
PRODUCT DESCRIPTION
OE-Matched Compatibility: Perfect Fit for Dongfeng KL Chassis
This Ring Gear (OE:3501076-K20X2) is precision-engineered to match Dongfeng KL’s original chassis system specs, aligning with factory differential teeth and mounting holes. No machining, shimming, or adapters are needed – simply secure with OEM bolts to replace worn ring gears. Compatible with all Dongfeng KL cargo/tractor models, it eliminates meshing gaps (a common cause of chassis noise) and integrates seamlessly with the differential system. Fleet technicians report 100% fit accuracy in 600+ installations, reducing rework time.
High-Precision Teeth: Stable Power Transmission
As a core chassis component, this ring gear’s teeth are machined to ±0.02mm tolerance (exceeding industry standards of ±0.05mm), ensuring smooth meshing with the pinion gear. Its 20CrMnTi hardened steel construction (HRC 58-62) withstands 500N·m torque, preventing tooth wear or breakage under heavy load. For long-haul trucks, this means consistent power transfer, reducing chassis vibration and improving driver comfort.
Durable Hardened Steel: Built for Heavy-Duty Use
The ring gear’s 20CrMnTi steel undergoes carburizing and quenching, enhancing surface hardness while maintaining core toughness. It resists impact and fatigue (tested to 150,000+ km of heavy-haul use) – unlike standard carbon steel ring gears (which fail at 80,000km). Rigorous salt-spray tests confirm 300-hour corrosion resistance, ideal for trucks operating in coastal or winter regions.
Safety & Operational Efficiency
Certified by Dongfeng Commercial Vehicle, this ring gear meets automotive chassis safety standards (GB 18320). Installation takes 30 minutes with standard differential tools, minimizing vehicle downtime. Its reliable performance reduces differential failure risks, lowering maintenance costs for fleet operators. For logistics businesses, this translates to higher truck availability and smoother long-haul operations.
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
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
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%.
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