Braking system
This Differential Relay Valve Assembly with part number 3527020‑90001 is original DFCV pneumatic brake spare part specially designed for Dongfeng KL heavy‑duty truck. As an important control component within the truck air brake system, this relay valve accelerates air charging and exhausting for wheel brake chambers to shorten braking response time. The main body is made of high‑strength cast‑aluminum alloy with precisely‑manufactured internal valve spool and rubber sealing components, delivering excellent anti‑corrosion performance and stable working performance under continuous vibration during highway driving. Every unit has passed factory pneumatic performance and sealing test before delivery. Many heavy‑truck repair workshops and logistics fleets adopt this genuine valve for regular maintenance and overhaul for Dongfeng KL Parts replacement work, effectively improving braking safety for long‑haul transportation vehicles.
Product Attributes
| Item | Specification |
| OE Part Number | 3527020 90001 |
| Applicable Vehicle | Dongfeng KL Heavy Duty Truck |
| Material | Cast Aluminum Alloy + Rubber Internal Seals |
| Color | Silver Grey Metal Finish |
| Installation Method | Bolt on mounting |
| System | Air Pneumatic Brake System |
| Genuine / Aftermarket | Genuine Original DFCV Parts |
| Function | Differential relay control for wheel brake chambers |
PRODUCT DESCRIPTION
Precision‑Cast Differential Relay Valve For Fast Air‑Brake Response
This genuine differential relay valve assembly 3527020‑90001 adopts high‑strength cast‑aluminum housing with precisely assembled internal rubber sealing elements. It works as a key pneumatic control component of the service brake circuit for Dongfeng KL heavy‑duty truck. The differential relay valve speeds‑up air inflow and exhaust for wheel brake chambers, shortening overall braking reaction delay during driving. It maintains stable brake performance under frequent brake operations for long‑haul semi‑trailer trucks, an essential component for Dongfeng KL Parts maintenance.
Fix Slow Braking, Air Leakage & Delayed Brake Response Faults
Worn‑out old differential relay valve will bring serious safety risks: continuous internal air leakage, slow brake response, uneven braking force between axles, which easily causes traffic accidents on highway. Replacing the defective valve with original 3527020‑90001 differential relay valve assembly can eliminate these hidden troubles. It restores normal pneumatic brake performance for Dongfeng KL heavy truck. It helps transport fleets and repair shops reduce unexpected roadside breakdown and lower vehicle downtime losses in daily freight operation.
Original DFCV Genuine Parts, Passed Pneumatic Sealing Performance Test
Each 3527020‑90001 differential relay valve assembly is original factory spare part for Dongfeng KL heavy‑duty truck. Every finished valve unit is strictly inspected via factory air‑tightness test and dynamic pneumatic performance testing before leaving the warehouse. The aluminum alloy housing is resistant to vibration and corrosion under complex road conditions. Plenty of fleet maintenance records confirm stable long‑term service performance when used as Dongfeng KL Parts replacement for truck brake system overhaul.
Ready Stock For Repair Shop & Fleet Bulk Maintenance Purchase
When your Dongfeng KL heavy‑duty truck needs brake system overhaul, this OE‑standard 3527020‑90001 differential relay valve assembly is your reliable original replacement choice. We keep sufficient inventory for single piece retail at repair workshops as well as bulk wholesale orders for logistics‑fleet periodic maintenance projects. Please send us an inquiry to confirm stock availability, product compatibility and get your competitive wholesale price for heavy‑truck spare‑parts business.
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%.
RELATED PRODUCTS
