[Replacement Part Number]9.110.018 – 9.100.018-725.Before Ordering,Please Check For The Details To Make Sure This Part Will Fit. [FIT FOR]Replacement For Hammerhead 80T And TrailMaster Mid XRX Mud Head Go Karts With A 6.5hp Engine.725 Torque Converter Asymmetrical Drive Belt Also Used On Many Kits As Well Trailmaster And Hammerhead Mid Karts.Driver And Driven Pulley Needs To Be Between 6 5/8 Inch And 6 11/16 Inch. [Advantage]With The Passage Of Time, The Belt Will Be Loose And Even Broken Due To Wear. Our Product Has The Characteristics Of Wear Resistance And Corrosion Resistance, Which Is Very Suitable For You To Replace The Original Belt, And The Price Is Only Part Of The OEM One.We Promise That Any Product Sold Are Original High Quality,100% Brand New,100% Tested Before Leaving Factory. [High performance]725 Torque Converter Asymmetrical Drive Belt Made Of Excellent Quality Rubber Material, Sturdy And Durable In Use,Has The Characteristics Of Wear Resistance And Corrosion Resistance