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High-quality, brand new truck parts 2510ZHS01-411 DONGFENG TRUCK Differential Housing Cover

The 2510ZHS01-411 Inter-Axle Differential Housing is a high-precision structural component manufactured by Dongfeng Dana Axle Co., Ltd., specifically designed for use in the middle drive axle of tandem rear-axle configurations (6×4 or 8×4) on heavy-duty commercial vehicles. This housing serves as the outer casing and support structure for the inter-axle differential mechanism, which includes the cross shaft, planetary gears, and associated bearings.

As a core part of the multi-axle power distribution system, this differential housing ensures balanced torque delivery from the transmission to both the middle and rear axles. It allows differential rotation between the two driven axles during cornering or uneven road conditions—preventing driveline wind-up, reducing tire wear, and enhancing vehicle stability.

Constructed from high-strength cast steel or ductile iron and subjected to precision machining and heat treatment, the 2510ZHS01-411 delivers exceptional rigidity, dimensional accuracy, and resistance to fatigue under extreme loads. The 2026 version features optimized internal oil channels that improve lubrication flow and thermal dissipation under continuous high-torque operation.
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  • 2510ZHS01-411 

  • Dongfeng

Attribute Specification
Part Number 2510ZHS01-411
Product Name Inter-Axle Differential Housing / Center Axle Diff Case
Function Houses and supports inter-axle differential gears and cross shaft
Installation Position Installed within the center drive axle’s main reducer assembly
Vehicle Type Heavy-Duty Trucks, Dump Trucks, Tractors, 6×4 / 8×4 Configuration
Axle Compatibility Dongfeng Dana 435, 440, 460 Series Tandem Axles
Material High-Strength Cast Steel or Ductile Cast Iron (QT500-7)
Heat Treatment Quenched & Tempered (Q&T) for enhanced toughness and durability
Bearing Bore Finish Precision-ground inner bores (micron-level tolerance)
Mounting Method Bolted as two halves using high-grade fasteners (split-case design)
OEM Manufacturer Dongfeng Dana (Joint Venture)
Compliance Standards GB/T 9439, QC/T 517–2000, ISO 7431 (Axle Component Standards)
差速器壳体盖-2


差速器壳体盖-4


Parameter Specification
Weight (Housing Only) 5.0 kg – 7.5 kg
Outer Dimensions (Approx.) Varies by model; typical: Ø280 × 200 mm
Wall Thickness 10 mm – 15 mm
Bearing Seat Diameter Matches planetary gear shaft journals (~Φ45–55mm)
Torque Capacity Supports > 20,000 N·m input torque
Lubrication System Internal oil splash + optimized groove design for cooling
Operating Temperature Range -40°C to +150°C
Fatigue Strength ≥ 500,000 km under full-load cycle testing
Surface Hardness HB 240–280
Sealing Interface O-ring or gasket-sealed mating surface
Required Fasteners 8 × Q151B1245 M12×45 bolts + Q40512 spring washers
Assembly Torque (M12 Bolts) 95–110 N·m (cross-tightening sequence required)


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