Rear Axle Differential Bearing Assembly OE 7814E for Dongfeng GX&KX | Genuine Truck Part

This differential bearing assembly OE 7814E is manufactured strictly to Dongfeng GX&KX original design specifications, adopting a precision tapered roller geometry that efficiently handles combined radial and axial loads—critical for heavy-duty truck differential systems. The product is forged from high-grade GCr15 bearing steel with advanced quenching and tempering treatment, delivering exceptional hardness, wear resistance and fatigue life. The optimized roller profile and surface finish minimize friction and heat generation, extending service life under continuous heavy loads. It adopts a 1:1 original dimensional design, with precise raceway tolerances that perfectly match the truck’s differential housing and gear shaft, ensuring a tight, stable fit and uniform load distribution. This robust design combines high load capacity and durability, making it the ideal OEM replacement for Dongfeng GX&KX heavy-duty trucks.

Fully compatible with all applicable Dongfeng GX&KX truck models, this differential bearing assembly can be quickly verified via OE 7814E to ensure accurate matching. It solves multiple common failures caused by low-quality aftermarket bearings, including inferior steel leading to premature wear and fatigue, poor machining leading to uneven load distribution and noise, mismatched dimensions causing differential misalignment, and insufficient lubrication leading to overheating and seizure. A faulty differential bearing will produce abnormal noise, cause differential gear wear and even lead to axle failure, posing a serious threat to driving safety and fleet operation. By using this genuine high-load bearing, users can eliminate bearing noise, premature wear and differential failure problems, ensuring reliable differential performance.

As a key component for heavy-duty truck axle systems, this differential bearing meets Q/DFL 6020-2021 Dongfeng automotive parts quality standards and has passed authoritative third-party tests for load capacity, wear resistance and fatigue life. Test data shows the bearing withstands a dynamic load rating of ≥120kN, maintains stable performance after 10,000 hours of continuous operation under heavy load, and remains functional after 500 hours of salt spray testing. Each bearing undergoes 100% dimensional inspection, raceway finish verification and fatigue 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 wear, fatigue and corrosion. Backed by complete factory traceability and quality certification, it provides users with long-term, trustworthy differential performance.

We are an authorized supplier of genuine Dongfeng GX&KX parts, providing original factory quality axle components, differential bearings and gear assemblies for global fleet operators, repair shops and distributors. This differential bearing assembly OE 7814E is supplied with full original factory labeling and traceable codes, ensuring 100% authenticity. It uses a standard press-fit installation design, allowing quick, tool-friendly installation without professional modification, greatly saving labor and time costs. The pre-lubricated design eliminates the need for additional lubrication during installation, further streamlining the replacement process. We provide a 12-month quality warranty against wear, noise and seizure 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 bearing improves differential reliability, reduces downtime and maintenance costs, and provides a safe, reliable and cost-effective axle solution for your Dongfeng GX&KX fleet.