One New Aftermarket Replacement Rear Window Gas Strut That Fits John Deere Tractor Models: 1640, 2040, 2040S, 2140, 2250, 2450, 2650, 2850, 3040, 3050, 3140, 3150, 3350, 3650 Overall Length 735Mm Stroke Length 325Mm Force 150N 18Mm Cylinder Diameter 8Mm Rod Diameter Replaces Part Number: Al66992 Ra