Description If your small engine losing its spark our spark plug for 80cc – 97cc 2.8 Hp engines is the NGK BPMR7A, a very common size used on a wide variety of small gasoline engines. Note: The NGK BPMR7A is the new replacement for the old NGK BPMR6A and is the perfect substitute for the original NGK spark plug. If your machine got its kick from a factory-installed BPMR6A then the NGK BPMR7A is just what the doctor ordered. in addition, this plug comes with a terminal nut Spark plugs are one of the most common causes of electrical failure in a gas engine. Before potentially wasting money on other more expensive gas engine parts, consider replacing your old spark plug instead. Specifications Name: NGK BPMR7A (replaces BPMR6A) Thread: 14 mm Reach: 3/8″ (9.5 mm) Heat: 7