Grant Piston Rings, a trusted brand with a reputation for precision and durability, is a top choice for high-performance air-cooled VW parts. As a leading manufacturer of piston rings for both gasoline and diesel engines, Grant offers a broad range of products, including custom piston rings made to exact specifications based on samples or drawings. With a variety of materials and coatings, Grant piston rings are designed to meet the rigorous demands of engine performance and longevity. Based in the United States, Mid America Motorworks trusts Grant's quality engineering and reliable performance for all its air-cooled VW engine rebuilds, ensuring that our customers receive the best parts for their classic Volkswagens.