T20/24DPG11 sealed brake chamber and inner breathing Size T16/24 925 494 960 0 T20/24 925 490 102 0 T24/24 925 491 141 0 T24/30 925 491 143 0 T30/30 925 492 102 0Stroke: 57-65MMBOLT CENTRE: 120.7PORT THREAD: M22X1.5voss port, M16X1.5PUSH ROAD THREAD: M16X1.5Working pressure: 08MpaQuality guarantee: 1,000,000 circle qualified spring brake chamber