1-1/8 Diameter Crank Model. 27HP, V-Twin Commercial 12V Electric Start, Has Fuel Pump, Has Oil Filter and Oil Cooler. Has 12V After Fire Solenoid. Briggs & Stratton CXI Series. These engines are specially designed for zero turn mowers and other high debris applications to endure extended use in extreme conditions. Bore 3.30 in. Stroke 2.90 in. Oil Capacity 67 fl. 16A Alternator w Regulator. MUFFLER IS NOT INCLUDED. Crankshaft, Drilled and Tapped 7/16-20 1/4-Sq. Keyway 4-19/64 Crank Length. HAS Fuel Pump and Oil Pump w FIlter. Patented 5-Step Debris Management System for extended durability under heavy debris conditions Cyclonic air filter provides ultimate debris protection and lasts 2X longer than panel-style air cleaner systems Increased cylinder block structure for added strength and durability Cooling fin inspection panels speed debris inspection and cleaning Full pressure lubrication with spin-on oil filter assures controlled lubrication for extended component life. Briggs and Stratton Dealer.