Briggs & Stratton OHV Spark Plug. It is compatible with most B&S Ohv Engines, including 700, 725, 825, 850, and 875 Series. It also fits Intek, Intek Pro, Power Built, Intek V-Twin, Vanguard, and ELS engines with a power range of 6 HP to 27 HP. This spark plug enhances performance, resists fouling, and offers superior corrosion resistance. Its resistor effectively reduces electrical noise interference. It is similar to Champion part No. RC14YC. Check gap: 0.030.