The Kenworth Replacement Rear Motor Mount is a practical and environmentally friendly solution for replacing OEM K066-377 and K066-421 T600 mounts. Available in red or black, these mounts are made of hyper flex polyurethane, ensuring durability and longevity. Sold by set, each set includes two complete mounts, one upper and one lower, providing a cost-effective and efficient solution for motor mount replacement. With its high-quality construction and practical design, this product offers a reliable and eco-friendly option for maintaining your vehicle's performance.