The VPB4828 piston rings, measuring .040", are manufactured by A & I Products for optimal performance in engine applications. These rings are crafted from high-quality materials to ensure durability and effective sealing under pressure. Designed for compatibility with various engine models, they meet industry standards for performance and reliability, making them essential for engine maintenance and repair.A & I PRODUCTS piston rings, model VPB4828, are designed with a .040 inch oversize specification to fit engines requiring larger diameter rings for cylinder wear compensation. These piston rings are manufactured from high-grade cast iron or steel alloys with surface treatments to enhance wear resistance and sealing performance. They provide effective compression sealing and oil control within the engine cylinder, supporting optimal combustion and engine efficiency. Compatible with specified engine models, the VPB4828 rings meet OEM standards for dimensions and material quality. These piston rings are used in engine rebuilds and repairs where oversize components are necessary.