​No matter what material or configuration, Grover offers ring features and joint designs to fit the exact requirements of your applications.

Custom Piston Rings and Sealing Rings for Unique Applications

Grover Corporation’s engineering, purchasing and operations management work collaboratively with our customers to develop the best order, delivery and packaging solutions for a wide variety of custom piston and sealing rings.

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  • From rings 1/2 inch (12.7mm) in diameter to over 90 inches (2286mm) in diameter.
  • In addition to our core competencies, Grover has the flexibility to work with you on new projects, difficult ring shapes and solid rings.
  • Grover offers ring features and joint designs to fit the exact requirements of your applications.
  • Grover works with you to meet any special piston ring coatings you require requirements
  • Grover’s manufacturing facility is one of a select group of companies worldwide that is certified for ISO/TS 16949 and ISO 9001:2015.


  • High level quality management systems equal to those in the large automotive piston ring markets.
  • From Inconel to a wide variety of ductile irons and many other materials, Grover can create custom piston rings with the material your application requires.
  • Engineering support and Grover’s experience, ensure materials selected will improve the quality and life of your applications and end products.

We make a living by what we get, but we make a life by what we give.

- Winston Churchill

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Got a question for us, or wondering if we can meet your specific application needs?

Industries We Serve

Grover can produce piston rings for almost any application

  • ​Automotive
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    ​Power Generation
  • Agriculture