COX CPV680-3EI/HDF Vertical Shaft Engine – 23hp (EFI, E-Start, Cyclonic Air Filter) Overview The CPV680-3EI/HDF is a full-commercial grade 679cc V-Twin petrol engine designed for high-frequency vertical shaft applications. Featuring Electronic Fuel Injection (EFI), electric start, and a heavy-duty cyclonic air filter, it delivers 23hp and 47 Nm of torque through a 1" keyway shaft. Its cast iron cylinder liner and Euro V certification ensure durability, efficiency, and compliance for commercial ride-on and zero-turn mowers. Key Features 23hp Rated Power at 3900 rpm 679cc V-Twin Displacement 47 Nm Max Torque Electronic Fuel Injection (EFI) 1" Vertical Keyway Shaft Electric Start System Heavy-Duty Cyclonic Air Filter Engine Oil Capacity: 2.0 L (SAE 10W-30 recommended) Engine Dimensions: 670 × 550 × 585 mm Net Weight: 50 kg Certifications: Euro V Applications: commercial ride-on mowers, zero-turn mowers, vertical shaft machinery Specifications Attribute Detail Model CPV680-3EI/HDF Product Type Vertical Shaft Engine Displacement 679 cc Rated Power 23 hp Rated Torque 47 Nm Cylinder Bore x Stroke 78 × 71 mm Max Output Speed 3900 rpm Idle Speed 1750 ± 150 rpm PTO Shaft Size 1" Vertical Keyway Shaft Starting System Electric Fuel System Electronic Fuel Injection (EFI) Air Filter Type Cyclonic Engine Oil Capacity 2.0 L Recommended Oil SAE 10W-30 Specific Fuel Consumption ≤ 370 g/kW·h Engine Dimensions (L×W×H) 670 × 550 × 585 mm Net Weight 50 kg Certifications Euro V SKU CPV680-3EI/HDF