- ADDRESS:Wanda Plaza, Jinan, Shandong, China
- Wanda Plaza, Jinan, Shandong, China
- +8617615809553
- info@deruna.com


Driver comfort and cabin functionality are paramount for long-haul efficiency. In SINOTRUK Howo trucks equipped with air-suspension seats, the 190003179781/1 Driver’s Seat Air Hose is a critical chassis air system component. This durable hose forms the vital pneumatic link between the truck’s air supply and the seat’s suspension mechanism, enabling adjustable height and damping. When seeking dependable Sinotruk howo parts, the 190003179781/1 air hose ensures operational integrity. A failure in this hose can lead to loss of seat adjustability, causing driver fatigue and discomfort. This genuine part guarantees a secure, leak-free connection, maintaining the ergonomic support essential for driver health and productivity over countless kilometers.
The 190003179781/1 is a specialized pneumatic hose designed for the driver’s seat in SINOTRUK Howo cabs. It transmits compressed air from the vehicle’s main air system to the seat’s air suspension and adjustment valves. This allows the driver to customize seat height and cushion firmness. The hose is constructed from high-grade, flexible materials resistant to oil, abrasion, and internal pressure. Its ends feature precise fittings that connect securely to the air line and seat valve. A leak or break in this hose disables the seat’s pneumatic functions. Replacing it with the genuine 190003179781/1 hose restores full comfort adjustability. This is crucial for reducing physical strain during long shifts.
Made from reinforced synthetic rubber, the hose withstands typical truck air system pressure. It remains flexible across a wide temperature range, ensuring reliable airflow without cracking or kinking.
The hose features OEM-standard brass or plastic fittings. These provide a perfect seal at both connection points, preventing air loss that would compromise seat suspension performance and comfort.
Engineered as an exact replacement, the 190003179781/1 hose matches the original length and fitting types. This allows for a straightforward swap without modification, saving valuable workshop time.
| Parameter | Specification |
|---|---|
| OEM Part Number | 190003179781/1 |
| Product Name | Driver’S Seat Air Hose |
| Brand | SINOTRUK Howo |
| Material | Reinforced Rubber/Nylon |
| Function | Transmit Compressed Air to Seat Suspension |
| Fitting Type | Push-in / Threaded (Model Specific) |
| Operating Pressure | Suitable for Standard Truck Air System (~8-10 bar) |
| Compatible Models | SINOTRUK Howo models with air-suspension driver seat. |
The 190003179781/1 hose is essential for active seat suspension. It allows the seat to absorb road vibrations before they reach the driver. This reduces fatigue and the risk of back injury.
Adjustable seat height improves visibility and control. A functional air hose enables this adjustment instantly. Drivers can find their optimal driving position for safety and comfort.
A compromised hose leads to a sagging or rigid seat. This negatively impacts posture over long periods. Maintaining this component is an investment in driver well-being and performance.
Inability to adjust seat height, a hissing sound near the seat, or a seat that slowly sinks indicate a leak in the air system, often due to a damaged 190003179781/1 hose.
To replace the hose, first, ensure the truck’s air system is depressurized. Move the driver’s seat fully forward and upward for access. Disconnect the old hose from the air line and seat valve.
Inspect the fittings for damage or debris. Route the new 190003179781/1 hose along the same path as the original. Avoid sharp bends or pinching points that could restrict airflow.
Push or screw the fittings firmly into place until they click or seat fully. Restore air pressure and test the seat’s adjustment functions. Check for leaks by applying soapy water to connections.
Regular maintenance involves a visual inspection for cracks, abrasions, or loose fittings. Keep the area under the seat clean to prevent debris from damaging the hose. Replace at first sign of wear.
This hose is vital for any SINOTRUK Howo used in long-distance transport. Driver comfort directly impacts alertness and safety over extended periods. A functioning air seat is non-negotiable.
In construction and mining, where roads are rough, the seat suspension works hard. A robust hose like 190003179781/1 ensures the system can handle constant vibration and jolting.
For fleet operators, ensuring every truck has a reliable seat air system reduces driver turnover. It demonstrates care for operator welfare and helps comply with ergonomic standards.
The genuine 190003179781/1 hose is made to exact material and dimensional specifications. It guarantees the correct pressure rating and flexibility for this specific application.
Universal hoses may have incorrect inner diameter or fitting types. This can cause airflow restriction, leaks, or fitting failure. The OEM part ensures perfect compatibility and performance.
Using the genuine hose protects the seat’s valves and the vehicle’s air system from contamination. It is a cost-effective choice that avoids repeat repairs and driver dissatisfaction.
If the seat won’t hold height, listen for a hiss. Isolate the sound to find the leak. Often it’s at the hose ends or a puncture in the hose itself. Replace the 190003179781/1 hose.
If adjustments are slow, check for kinks in the hose line. Ensure the air supply from the main system is adequate. A faulty hose can internally collapse, restricting flow.
If fittings are loose, they may not be fully engaged. Use the correct type as per OEM design. Do not overtighten threaded fittings, as this can damage the seat’s valve port.
The 190003179781/1 Driver’s Seat Air Hose is a small but crucial component in the SINOTRUK Howo cabin. It directly enables the comfort and adjustability of the driver’s seat.
Maintaining this part ensures drivers remain supported, alert, and comfortable. This leads to safer operation and higher job satisfaction. It is a key element of vehicle livability.
Always opt for the genuine 190003179781/1 hose to guarantee a perfect fit and reliable service. It is a simple upgrade that makes a significant difference in the daily life of a driver.