Mercury Vengeance 3 Blade Stainless Steel Propeller 13 x 18 Pitch Prop Part Manufacturer: Mercury Marine; Series: Vengeance; Part Number: 48-16988A46; UPC: 745061032767 Size: 13 x 18 Pitch; Rotation: Right Hand; Material: Stainless Steel Measures approximately 4 1/8" OD across back of hub. Includes Flo-Torq II Hub Assembly Kit - Part Number 835257K1 Fits: 40-60 HP Bigfoot- Model year 2005 and earlier only, 75-125 HP 2-Stroke and 4-Stroke Sold as seen in pictures; Note every computer shows colors differently; All measurements are approximate; Hardware and instruction/installation manual not included