Check the listing for details. Shifter Knob. Color: Black, Condition: New other (see details). Listed at 24.99 USD. The Shifter Knob is a black parking brake lever designed by General Motors. This product is a genuine part made specifically for cars and trucks, providing a sleek and functional add-on to the interior of the vehicle. With its durable construction and precise design, this shifter knob is an essential accessory for enhancing the overall look and feel of the parking brake system in your vehicle.