Feature: 1. OE Number: The referencing OE number of this water pump impeller are 17370& 8209;0001, 3008503, 217308, 8927570, 3N 4859, 3N1888, 3N8459.    2. Fitment: The 12 blade water pump impeller is a replacement for Jabsco, replacement for Caterpillar, replacement for Cummins, replacement for Detroit Diesel.    3. Parameter: The width of this impeller is 3& 8209;1/2in, the diameter is 3& 8209;3/4, the shaft diameter is 1in, designed with type 5 double flat drive and 12 blades.    4. Function: Used to replace or refurbished the worn out impellers, it could provide higher flow and cooling flows, thus better protecting the ship's engine.    5. Material: Made of marine grade and chemically resistant neoprene and brass, it is reliable, efficient and high performance, designed for long term use.       Specification:        Item Type: Water Pump Impeller    OE Number: 17370& 8209;0001, 3008503, 217308, 8927570, 3N 4859, 3N1888, 3N8459    Material: Neoprene, brass    Width: Approx. 3-1/2in (88.5mm)    Diameter: Approx. 3-3/4in (95mm)    Shaft Diameter: Approx. 1in/25mm    Drive: Type 5 Double Flat    Number Of Blade: 12    Fitment:    Replacement for Jabsco    Replacement for Caterpillar    Replacement for Cummins    Replacement for Detroit Diesel                Package List: 1 x Water Pump Impeller       Note: