The Traxxas 8677 Gear Cover is a genuine OEM replacement cover designed to protect the spur gear and transmission area on select Traxxas E‑Revo and E‑Revo VXL 2.0 models. Built to factory specifications, this durable plastic gear cover helps shield internal gears from dirt, debris, and impact while maintaining proper alignment and mesh within the drivetrain assembly. It includes the required 3×12 mm countersunk screw for secure installation and is a direct fit for Traxxas part numbers listed in the model’s parts diagram.