Briggs & Stratton 15.5HP Lawnmower Engine (Intek EX1550 Series) is a Briggs & Stratton petrol replacement engine for compatible outdoor power equipment.
Model numbers: 31R777-0030 (standard specification).
Engine fitment depends on the mounting pattern, shaft dimensions, charging circuit and accessories. Please compare the full model and type number on your existing engine before ordering. Contact our team if you need help confirming compatibility or availability.