Features: 1. Part Number: According to the original factory specifications, impeller replacement part number is 18-3245. Replacement OEM numbers are 19210-881-003, 19210-881-A01, 19210-881-A02. 2. Applicable Model: Water pump impeller fits 5-10hp outboard motors, including BF5AM, BF8AM, BF5AW, BF8AW, BF5AX, BF8AX, BF5AY, BF5A1, BF5A2, BF5A3, BF5A4, BF5A5, BF5A6, and others. 3. Water Transfer Pump Impeller: Neoprene rubber impeller designed for marine water pumping applications such as engine cooling, water transfer, wash down, and bilge water pumping. Suitable for use in both fresh and salt water. 4. Premium Material: Impeller constructed from high-quality neoprene rubber with copper hubs, offering excellent flexibility and durability in various marine environments. 5. Stable Performance: 8-blade impeller undergoes rigorous quality testing to ensure reliable, efficient, and long-lasting operation. Simplifies water pump repair and maintenance. Specification: Item Type: Water Pump Impeller Replacement OEM: 19210-881-003 / 19210-881-A01 / 19210-881-A02 Replacement Part Number: 18-3245 Blades: 8 Inner Diameter: Approx. 13.15mm / 0.52in Outer Diameter: Approx. 41.00mm / 1.61in Depth: Approx. 23.00mm / 0.91in Shaft Profile: D-shape Inner Shaft Insertion Diameter: Approx. 14.18mm (9/16in) Material: Neoprene rubber with copper hubs Fitment: Fits 5-10hp outboard motors: 1997 BF5AM 1997 BF8AM 1998 BF5AW 1998 BF8AW 1999 BF5AX 1999 BF8AX 2000 BF5AY 2001 BF5A1 2002 BF5A2 2003 BF5A3 2004 BF5A4 2005 BF5A5 2006 BF5A6 2007 and later BF5AK0 2007 and later BF5AK2 2007 and later BF5AK3 2007 and later BF8AK0 Pre-1997 BF100A, BF100B Pre-1997 BF100C, BF100D Pre-1997 BF100E, BF100F Pre-1997 BF50F, BF5AH Pre-1997 BF5AK, BF75A Pre-1997 BF75B, BF75C Pre-1997 BF75D, BF75E Pre-1997 BF8AH, BF8AK Note: 1. Please verify the part number of your unit. Compatibility information is for reference only. 2. If uncertain about compatibility, please confirm before purchase to avoid returns.