Hot Racing VXS3801 Black Aluminum Center Transmission Case 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 VXS3801; UPC 083745612226 This item works with: Traxxas 1/16 E-Revo VXL, 1/16 Slash/Rally 4WD, 1/16 Summit VXL