The Massey Ferguson 188 is a farm tractor produced from 1972 to 1976 by Massey Ferguson. It is powered by a Perkins 4.1L 4-cylinder diesel engine delivering 75 hp (55.9 kW) with a claimed PTO power of 70 hp (52.2 kW). The tractor offers two transmission options: a 12-speed partial powershift Multi Power transmission and an 8-speed unsynchronized transmission. It features two- or four-wheel drive, power assist steering, and differential mechanical wet disc brakes. The tractor has an open operator station and a rear Type II hitch with a lift capacity of 4,550 lbs (2063 kg). Fuel capacity is 22.7 gallons (85.9 L) and the hydraulic system holds 7.5 gallons (28.4 L) with a total flow of 11.3 gpm (42.8 lpm). The rear PTO is live with an optional independent feature and operates at 540 rpm. Dimensions vary between 2WD and 4WD models, with wheelbases of 90 inches (228 cm) and 96.5 inches (245 cm) respectively, and operating weights from 7,231 lbs (3279 kg) to 8,422 lbs (3820 kg). The tractor uses agricultural tires sized 8.25-16 or 11.5-24 on the front and 16.9-34 on the rear. Electrical system is 12 volts with a 125 AH battery and negative ground.