Cylinder for 315 316 318 Progressive thumb, 3909422 SKU: 3909422N For thumb: 3879672, 3879674, 3879676, 3879678, 3879682, 3879684, 3879686, 3879688, 4639218, 4892234, 5118130, 5149621, 5843952, 5843954, 5956393, 5956394, 5956395, 5956396, 5956397, 5956398, 5956399, 5956401, 5959164 Bore: 101.6mm / 4in Stroke: 863.6mm / 34in Working Pressure: 276 bar Test Pressure: 345 bar Length Range: 1176.5 – 2040.1 mm Pin Sizes: 50.8mm (Pin 3913832B, 3913835B unincluded) Dimension: 13.78” x 14.17” x 77.17” Weight: 352.8 lbs.