| Product name | Air Spring, air bag |
| Type | Air Suspension/Air bags/Air Ballons |
| Warranty | 12 Months |
| Material | Imported Natural Rubber |
| Car model | Hendrickson |
| Price | FOB China |
| Brand | VKNTECH or customized |
| Weight | 7.25KG |
| Operation | Gas-filled |
| Package dimensions | 27*27*33cm |
| Factory location/Port | Guangzhou or Shenzhen, any port. |










| VKNTECH NUMBER | 1K 9978 |
| OEM NUMBERS | Firestone 9978, Hendrickson C-28929, S-28929, Firestone W01-358-9978, Hendrickson C28929, S28929, Firestone W013589978 |
| WORKING TEMPERATURE | -40°C bis +70°C |
| KEY FEATURES OF Viking AIR SPRINGS | - Easy to identify part number permanently engraved on the rubber. - 4.00-5.00mm trick rubber that exceeds OEM requirements. - 25% stronger 4140 grade steel studs. - Stronger composite pistons. - Highest leak test ratio after final assembly. |