Bartell Morrison Mortar Mixer Gas Engine Cast iron trunion with triple sealed bearing, Single piece 1-3/4" square mixer shaft, Life time warranty on Drum bearings, heavier wall mixer drum (1/8) than competitors. Pintle Hitch Features 1-3/4" hardened steel paddle shaft, with double bearings and eight grease seals Tapered drum opening eliminates spilling on the job Heavy duty safety cage with over sized bag breaker Removable heavy duty hitch 14 gauge steel laser cut shroud with triple roll pin hinges Solid 1-5/8" steel axle with suspension springs and 13" tires for smooth towing Dual controls for mixing and dumping 12 cu ft model features an Hydraulic dump cylinder for operator ease, the hydraulic reservoir is combined in heavy steel frame Bartell Morrison Motor Specifications Model MM6SH240 MM8SH240 MM9SH240 MMH12H390 Capacity 6 cu ft 8 cu ft 9 cu ft 12 cu ft 80 lb redi-mix Bag Capacity 1-1/2 to 2 bags 2 to 2-1/2 bags 2-1/2 to 3 bags 2-1/2 to 3-1/2 bags Fuel Capacity 3.3 qts (3.1 L) 5.6 qts (5.3 L) 5.6 qts (5.3 L) 6.4 qts (6.1 L) Dimensions 51 x 76 x 58 in 51 x 76 x 59 in 51 x 76 x 59 in 51 x 76 x 60 in Weight (dry) 737 lbs (335 kg) 860 lbs (395 kg) 870 lbs (395 kg) 880 lbs (400 kg)