Feature 1Replacement OE Number: The referencing OE number of this water pump impeller are 09814, 179360001, 5198550, 5196168, 8924839, 4L8470. 2Fitment: The water pump impeller is a replacement for Jabsco, replacement for Johnson, replacement for Caterpillar, replacement for Detroit Diesel. 3Parameter: The width is 31/2in, the diameter is 33/4in, the shaft diameter is 1in, designed with spline drive and 12 blades, effective restore your engine performance. 4Function: The heavy duty water pump impeller could provide high flow and cooling flows, direct replace for the old or broken one, better protect your engine. 5Easy to Install: Stringently manufactured to meet the original standard, perfect replacement for the old or broken one, improving the time efficiency.Item Type:WaterPumpImpellerOE Number:09814,179360001,5198550,5196168,8924839,4L8470 .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Material:Neoprene, brassWidth: Approx. 3-1/2in (88.5mm)Diameter:Approx. 3-3/4in (95mm)Shaft Diameter: Approx. 1in/25mmDrive: 12 SplineNumber Of Blade: 12Fitment:ReplacementforJabscoReplacementforJohnsonReplacementforCaterpillarReplacementforDetroitDieselPackage List1 x WaterPumpImpellerNotePlease double check the part number of your item, matching information is for reference only.If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!