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T3030 Freightliner Truck Spring Air Brake Chamber Assembly. Air brake chambers are round metal containers, located at each wheel, where compressed air is converted into mechanical force to apply the brakes and stop the vehicle. There are two kinds of air brake chambers - service and spring brake chambers.
| Model Number | T30/30DD | T30/30DD | T30/30DD |
|---|---|---|---|
| Stroke | 64/64mm | 64/64mm | 64/64mm |
| Port Thread | M16*1.5 | 3/8"NPT | 3/8"NPT |
| Bolt Thread | M16*1.5 | M16*1.5 | 5/8"UNC |
| Bolt Centre | 120.7 | 120.7 | 120.7 |
| Push Rod Thread | M16*1.5 | M16*1.5 | 5/8"UNF |
| Push Rod Length | 285MM | 285MM | 285MM |






