18HP Vertical Shaft Lawn Mower Engine Petrol Motor 4 Stroke OHV Ride On

550CC 4 STROKE18 Horsepower OHV Vertical Shaft Cast Iron BoreElectronic Ignition Electric Start25.4MM Parallel Shaft with keywayDirect replacement to fit BRIGGS STRATTON or HONDA mounting bolt patternPlease note this is a universal fitment engine and some modifications to the engine or mower might be needed, including but not limit to the muffler, exhaust system and/or electrical wiring. If you are not familiar or confident to do so, please consult small engine mechanic before purchasing, installing and using.Tradesman engines are the perfect to power the equipment you use to maintain your home and yard, like a garden tiller, log splitter, pressure washer, water pump or portable generator. Count on our versatile and durable utility engines to perform consistently and start easily, no matter how tough the job.Things you need to consider before purchasing any vertical shaft engine to ensure it fits your mower.Bolt PatternPlease check description for the schematic of the bolt pattern. If you have a Briggs Stratton or Honda engine, the bolt pattern will be a perfect match. The bolt holes on the engine will require thread tapping.Output Shaft SizeOutput shaft on our engine is 1 (25.4mm). Most ride on mower engines with HP ratings between 10 to 18 hp have 1 shafts. But please make sure this is the same for your mower.Engine DisplacementThe displacement of the new engine shall not be less than your current engine to avoid any underpower issue.Physical SizeIf your mower has only limited space for the engine to fit into, you will need to check the physical dimensions of our engine carefully before purchasing. An illustration of the physical dimensions can be found in the images in the description.Please note this is a universal fitment engine and some modifications to the engine or mower might be needed, including but not limit to the muffler, exhaust system and/or electrical wiring. If you are not familiar or confident to do so, please consult small engine mechanic before purchasing, installing and using.SPECIFICATIONSEngine Air Cooled Single Cylinder Four StrokeHorsepower 18HPEngine Capacity 550CC Bore Stroke 94.5 x 78mm PTO Shaft Rotation: Counterclockwise (vertical output)Compression Ratio: 8.7:1Net Power: 13.2 kW @3600rpmNet Torque: 39.5 Nm @2500rpmIgnition System: Transistorized Magneto IgnitionStarting System: Electric StarterCarburetor: Flat Suction Valve CarburetorGovernor System: Centrifugal MechanicalEngine Oil Capacity: 1.5 LIN THE BOX1 - 18HP Vertical Shaft Engine1 - Manual