The Claas Arion 550 is a row-crop tractor produced from 2012 to 2025 as part of the Arion 500 Series. It features a John Deere 4.5L 4-cylinder turbocharged intercooled diesel engine delivering 158 hp (117.8 kW) net power. The tractor has a Hexashift six-speed power shift transmission with 24 forward and reverse gears and a power shuttle. It includes four-wheel drive, electro-hydraulic differential lock, power steering, hydraulic wet disc brakes, and a cab with air-conditioning. The hydraulic system is load sensing with 2900 psi pressure and 29.1 gpm pump flow. The rear hitch is category III with a lift capacity of 9259 lbs (4199 kg). PTO options include independent rear and optional front PTO. Dimensions include a 100.9 inch wheelbase, 187.6 inch length, and 116.9 inch height, with an operating weight of 13272 lbs (6020 kg). Standard tires are 14.9R28 front and 18.4R38 rear, with multiple optional tire sizes available. Electrical system is 12 volts with negative ground and alternator charging.