The Energy Suspension Peterbilt 359 Caterpillar Lower Radiator Support Bushings are a practical and reliable solution for replacing the Peterbilt 359 Conventional with Caterpillar Engine. Constructed of Hyper-Flex Polyurethane, these bushings are impervious to road salt, petroleum products, smog, ozone, and road contaminants. Available in red or graphite (black), this kit includes all the necessary bushings to service one vehicle. With their durability and resistance to various elements, these bushings ensure long-lasting performance and optimal support for your radiator. Upgrade your Peterbilt 359 with these high-quality bushings for enhanced functionality and peace of mind.