Product Name : VITAVON CNC Alu7075 Servo Steering For UDR Traxxas Unlimited Desert Racer 1:7 #8543
Brand : VITAVON
Color : Silver  Gold and Red available, you can choose gold or red from below link

https://www.ebay.com/itm/286773566668

Made of high quality Alu7075,  improved the design with 2 bearings to make it more stronger more stable.
Accessories included :  Screws for assemble
Original stock part no.#8543