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Power Steering Pump C2874592 for Dongfeng Truck Engine Parts M

The C2874592 M Power Steering Pump is a high-performance hydraulic pump engineered specifically for Dongfeng heavy-duty trucks equipped with Cummins diesel engines. As a core component of the hydraulic power steering system, it delivers pressurized fluid to the steering gear, significantly reducing driver effort when turning the steering wheel — especially critical during low-speed maneuvers or stationary steering in large commercial vehicles.

Developed under the Dongfeng Cummins Engine Company (DCEC) OEM framework, this pump meets stringent durability, efficiency, and noise-reduction standards. It features a variable-displacement design that optimizes flow and pressure based on vehicle speed and load, improving fuel economy and driving comfort. Commonly installed on flagship models such as the Dongfeng Tianlong and Hercules series, this unit is widely used in long-haul transport, construction, and passenger coach applications.
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  • C2874592 M

  • Dongfeng

Attribute Description
Product Name Power Steering Pump (Hydraulic Type)
Primary Function Generates hydraulic pressure to assist steering operation via the steering gearbox or rack
Design Type Variable displacement vane pump (auto-adjusts output based on demand)
Pump Body Material High-strength cast iron for excellent wear resistance and structural integrity under high pressure
Sealing System Dual-lip NBR (nitrile rubber) seals compatible with ATF-type fluids
Drive Mechanism Belt-driven from engine crankshaft (typically V-belt or multi-ribbed serpentine belt)
Key Features

- Integrated pressure relief valve for system protection

- Low-noise operation through precision rotor balancing

- Energy-efficient variable flow reduces parasitic loss

- Stable performance across extreme temperatures (-30°C to +120°C)
动力转向泵-3

Name1

动力转向泵-2

Name2

Parameter Specification
Part Number (OEM) C2874592, C2874592 M
Alternative ID / Query No. 907-FUD-843
Rated Operating Pressure 150–175 bar (2175–2540 psi), adjustable via internal relief valve
Displacement High-flow design suitable for heavy-duty steering gears (exact cc/rev varies by calibration)
Fluid Compatibility ATF Dexron III, Mercon, or equivalent automatic transmission fluid
Rotation Direction Clockwise (viewed from pulley end)
Mounting Type Bracket-mounted with tensioning adjustment for drive belt
Inlet/Outlet Ports Standard SAE O-ring boss (ORB) fittings; requires proper sealing washers
Operating Temperature Range -30°C to +120°C (-22°F to +248°F)
Noise Level < 80 dB(A) at rated speed (designed with noise-dampening internals)


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