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| Product Information Sheet for 5001155-C4300 Rear Suspension Longitudinal Shock Absorber | |
| Item | Details |
| Part Name | Rear Suspension Shock Absorber Assembly (with Spring) for Cab |
| Part Number | 5001155-C4300 |
| Structure Type | Telescopic Hydraulic Spring Strut. It combines the supporting force of a coil spring with the damping force of a hydraulic cylinder. |
| Main Material | The cylinder body is made of high-quality alloy steel, and the spring is made of high-strength spring steel. The surface is usually treated with black electrophoretic paint or powder coating, providing good corrosion resistance. |
| Working Principle | Oil-filled damping. Oil flow is controlled through an internal piston throttle orifice, providing linear or adaptive damping characteristics. |
| Mounting Location | Rear of the cab (symmetrical, usually installed in pairs) |
| Interface Type | Both ends are usually connected with rubber-metal bushings (bushing mounting holes) to buffer metal-to-metal friction and allow for a certain deflection angle. |
| Compatibility | Designed specifically for the "four-point suspension" cab of the Dongfeng Kinland series, it is not recommended to use it across different brands or models, as mismatch in damping force may lead to increased cab shaking or premature bushing damage. |
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Performance Characteristics
Vibration Absorption: Specifically designed for commercial vehicle cabs, effectively filtering road bumps and reducing cab sway frequency.
Ride Comfort: Improves driver comfort and reduces fatigue during long-distance driving.
Stability: Provides auxiliary support to the cab during emergency braking or steering, preventing significant shifts in the center of gravity.
Usage and Maintenance Precautions:
Regular Inspection: Check the shock absorber surface for oil leaks. If obvious oil stains appear on the cylinder block, the seals have failed and the entire assembly needs replacement.
Spring Fatigue: Prolonged use under harsh conditions may cause coil spring fatigue and collapse. If uneven height is found at the rear of the cab, this assembly should be inspected.
Pair Replacement: To maintain even force distribution, it is recommended to replace the rear suspension shock absorbers of the cab in pairs when damaged.
Installation Requirements: Ensure bolt torque meets original factory specifications during installation to prevent loosening that could cause abnormal noise or metal fatigue at the connection.
