Upgrade your Peterbilt Air Leaf suspension system with Energy Suspension Peterbilt Air Leaf Bushings. Constructed of Hyper-Flex Polyurethane, these bushings are available in red or graphite (black) and are sold in pairs. They are impervious to road salt, petroleum products, smog, ozone, and road contaminants, ensuring long-lasting durability. Replacing Peterbilt OEM Number 03-01674 & Euclid OEM Number E-7509, these bushings are a practical and reliable choice for enhancing the performance and longevity of your suspension system.