The Wagner TR-9 is a four-wheel drive agricultural tractor produced from 1955 to 1960 by Wagner in Portland, Oregon. It features a Cummins 8.1L 4-cylinder diesel engine producing 120 hp (89.5 kW) with a 10-speed gear transmission. The tractor has a wheelbase of 108 inches and weighs 15,270 lbs. It offers an open operator station with an optional cab and uses hydraulic power steering and hydraulic shoe brakes. Fuel capacity is 75 gallons and hydraulic system capacity is 30 gallons. The TR-9 was available in variants including an ag tractor and a scraper/dozer tractor (TRS-9).