WARNING: This is a VERTICAL crankshaft (shaft on the bottom of engine pointing down) engine - This will not replace horizontal crankshaft engine! Your horizontal crankshaft engine may looks similar to this, but this will not work.
Buy this engine here: BRIGGS and & STRATTON 31R9770013G1-WMuffler vertical Crankshaft Engine
 |  |
 |  |
 |
Buy this engine here: BRIGGS and & STRATTON 31R9770013G1-WMuffler vertical Crankshaft Engine