593392 Carburetor For Briggs & Stratton 44R877 21HP 22HP 23HP 24HP 25HP 26HP 27HP V-Twin Intek Engines With Fuel Pump. Designed for optimal performance in 21HP to 27HP engines. Compatible with Briggs & Stratton V-Twin Intek Engines including models 407777, 40N877, and 44R877.