Keep your Peterbilt's check valve system operating at peak performance with this genuine OEM service kit. This comprehensive kit includes all essential components - the precision-engineered spring, durable ball, and robust housing parts - designed specifically for seamless compatibility with your Peterbilt model 101132. Each component is manufactured to exact OEM specifications, ensuring proper fit and reliable functionality. The check valve plays a crucial role in maintaining proper vacuum and pressure control in your vehicle's emission system. This complete service kit provides everything needed for a thorough valve rebuild, helping restore optimal performance and efficiency. Perfect for both preventative maintenance and necessary repairs, this kit helps maintain your truck's operating systems at factory specifications. Installation should be performed by qualified service technicians following proper maintenance procedures.