The Energy Suspension - Mack Trunnion Bushing is a durable and practical solution for your vehicle's suspension system. Constructed of Hyper-Flex Polyurethane, this bushing is available in red or graphite (black) and measures 5-9/16 inches in length, with an OD of 4-11/16 inches and an ID of 3-7/16 inches. Sold individually, this bushing is impervious to road salt, petroleum products, smog, ozone, and road contaminants, making it a reliable choice for any road conditions. With its environmental resilience and long-lasting performance, this bushing is a must-have for your vehicle's maintenance needs.