• 550CC 4 STROKE
• 18 Horsepower OHV Vertical Shaft Cast Iron Bore
• Electronic Ignition Electric Start
• 25.4MM Parallel Shaft with keyway
• Direct replacement to fit BRIGGS & STRATTON or HONDA mounting bolt pattern
• 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.

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 Pattern
Please 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 Size
Output 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 Displacement
The displacement of the new engine shall not be less than your current engine to avoid any underpower issue.

Physical Size
If 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.

SPECIFICATIONS
Engine Air Cooled Single Cylinder Four Stroke
Horsepower 18HP
Engine Capacity 550CC
Bore & Stroke 94.5 x 78mm
PTO Shaft Rotation: Counterclockwise (vertical output)
Compression Ratio: 8.7:1
Net Power: 13.2 kW @3600rpm
Net Torque: 39.5 Nm @2500rpm
Ignition System: Transistorized Magneto Ignition
Starting System: Electric Starter
Carburetor: Flat Suction Valve Carburetor
Governor System: Centrifugal Mechanical
Engine Oil Capacity: 1.5 L

IN THE BOX
1 - 18HP Vertical Shaft Engine
1 - Manual

Related Collections: