Replacement - Fit for Kenworth Aerocab Mid 1999 & Earlier Model Trucks Models (Replaces Firest 7064, W02-358-7064). Excellent Quality - The air suspension is made of high-standard, high-density rubber, which is more durable and has better load-carrying performance than other air suspensions, providing a better driving experience after replacement. Safety & Stable - Air spring bags prevent passengers from receiving physical impacts, minimizing the possibility of injury, while absorbing vibrations and enhancing ride comfort. NOTE - Please double check and verify car make and model compatibility before purchasing to avoid buying the wrong air springs. Services - If you encounter any problems in daily use or any quality issues, please feel free to contact us, we will reply within 24 hours.