Hot Racing machine polish brass propeller, with Aluminum conical M4 propeller nut, and drive dog for the Traxxas DCB M41 and Spartan boatsFEATURES: - CNC machined billet Brass balanced prop- CNC machined Aluminum conical prop nut and drive dog- Replaces factory plastic propeller- Replaces factory hex nut with hydro dynamically efficient conical nut for reduced dragYOU WILL RECEIVE: - One (1) CNC brass prop- One (1) Aluminum bullet prop nut- One (1) Aluminum drive dog- One (1) stainless steel setscrewREQUIREMENTS: - Installing on drive cable- Recommended to use a removable-type locking adhesive on screws threading into/onto metalSPECIFICATIONS: - Prop diameter: 42mm (1.65 inches)- Prop pitch: 63mm (2.48 inches)- Weight: 9g (0.32 oz)- Prop nut length: 18.3mm (0.72 inch)- Prop nut diameter: 8mm (0.31 inch)COMMENTS: - Upgrades Traxxas factory plastic prop 5733- Upgrades Traxxas factory hex prop nut 1747- Upgrades Traxxas factory brass drive dog 5728- See Hot Racing SPN1000H for the aluminum propeller upgrade option- For replacement drive cable or prop shaft order Traxxas 5729