A-BU251-AI LOW PLATEOne New Aftermarket Replacement Low Plate (Sickle Guard Hold Down) for Cutter Bar Sickle Assemblies This low plate, also called a sickle guard hold down or stub guard, is used in the cutter bar sickle section of hay mowers, combines, and grain heads. It holds the sickle guard in place and is a common wear item replaced during cutter bar maintenance. Fits several makes and models across the industry. Compatible Models Fits Case IH CSIH: 950, 955, 990,