This is the Boom Extend Cylinder for wrecker booms on light duty wreckers by Miller Industries. This extend cylinders has a 2.5" Bore and a 60" Stroke. This cylinder will fit on Century Formula I Duplex Tilt 411, 412, Super Six, and 500 Series, Century Formula 6000 - 600 Series, Century 614 FIIT Wrecker, Challenger 4700 and 4800 Series, and Holmes 440 Series. To view specific wrecker models see Features below. To view part schematics click the Brochures tab.