Description
| Name | Part Number |
|---|---|
| WABCO | 4640070020 |
| Haldex | KN27000 |
| Hendrickson | VS-271 |
| Meritor | R955551 |
| Knorr-Bremse | K038808 |
| HD Plus | 171.KN27000 |
| Attribute | Value |
|---|---|
| Product Type | Height Control Valve (HCV) |
| Application | Air Suspension Systems (Truck / Trailer / Bus) |
| Function | Automatic ride height adjustment |
| Operating Pressure | 0 – 150 PSI |
| Maximum Pressure | Up to 165 PSI |
| Control Type | Mechanical linkage-operated valve |
| Port Size | 1/4″ or 3/8″ NPT |
| Number of Ports | 2 to 3 ports |
| Mounting Type | Chassis-mounted |
| Linkage Type | Adjustable lever arm linkage |
| Response Sensitivity | High precision response to suspension movement |
| Material | Die-cast aluminum body |
| Surface Finish | Corrosion-resistant coating |
| Internal Mechanism | Precision spool valve system |
| Seal Material | Nitrile Rubber (NBR) / Synthetic Elastomer |
| Temperature Range | -40°F to +176°F |
| Air Flow Direction | Marked on valve body |
| Leakage Rate | Minimal under standard conditions |
| Vibration Resistance | High resistance for heavy-duty road use |
| Durability | High cycle life (>1 million cycles) |
| Adjustment Range | Wide height calibration range |
| Installation Orientation | Flexible (as per OEM recommendation) |
| Maintenance Requirement | Low (periodic inspection advised) |
| Compatibility | OEM & aftermarket air suspension systems |
| Compliance | Meets commercial vehicle standards |
| Weight | 1.25 LB |









