Hot Racing NSG815 15t Steel 48p Pinion Gear 5mm or 1/8 Made by Hot Racing; Hot Racing is a United States based company; parts are sourced from Chinese producers All Hot Racing upgrade parts are direct replacements for stock components; additional parts are not required Hot Racing part number NSG815; UPC 083745632958 This item works with: Associated SC-10 2WD; Losi 1:10 Desert Truck, 1:10 HighRoller, 1:10 Night Crawler, 1:10 Strike, 1:10 TLR 22 2WD Buggy; Traxxas Rustler VXL Velineon Brushless, Rustler XL-5, Slash 2WD all versions, Stampede Electric, Stampede VXL, Stampede XL-5