Keep it Running - Keep it Genuine. Help keep your outdoor power equipment running at peak performance by ordering the Briggs & Stratton 10.5 in. x 10.5 in. Arbor Drive V-Belt. Need more mower parts in addition to this V-belt? You can find the right part you need including carburetors, air filters, spark plugs, tune-up kits and other engine repair parts. Only Briggs & Stratton genuine parts are specially designed to exact OEM standards, manufactured and tested to help deliver optimum performance in Briggs & Stratton engines. Not only are Briggs & Stratton genuine parts guaranteed to fit, but using them ensures that the Briggs & Stratton engine they are installed on complies with applicable (EPA) emission regulations.