Valve Seat Inserts

Shailesh DG Set Spares pioneered the development, manufacturing and application of cost-effective, high-performance valve seat inserts. Our products have become the preferred choice for marine, diesel and gasoline engines.

Alloy selection includes traditional wear resistant to unique proprietary materials designed to match the specific application of the valve seat insert needed. Our wide range of valve seat inserts are made from nickel, chrome, cobalt and iron based alloys that display superior wear and heat resistant properties. The design of the surface and angles of valve seat insert depends on engine criteria like engine application, fuel type, combustion temperature and pressure, seating velocity, material selection and seating stress.

We have complete in-house capabilities for development, metallurgy, casting, tooling and testing. The casting, which is the most important and typical factor in the manufacturing of the valve seat inserts, is done on latest high frequency induction melting furnace. These are individually and centrifugally casted, as the case may be, under the strict supervision of qualified metallurgists.

Valve Seat Inserts Gallery

Valve Seat Inserts Production Range

  Min Max
Outer Diameter 70 mm 500 mm
Inner Diameter 30 mm 400 mm


  • Iron based alloys
  • Nickel
  • Chrome

Special Features and Treatments

  • Cooling
  • Stellite

Valve Seat Inserts for Marine Engines

Shailesh DG Set Spares can manufacture replacement marine engine valve seat inserts for marine engines such as Allen, B&W, Daihatsu, MAN, Cummins, Hanshin, Yanmar, Niigata, Akasaka, Makita, Deutz, ITO, Mitsubishi, MAK, Pielstick and other famous brand names.

Shailesh DG Set Spares can also make valve seat inserts for custom applications. If you don't see what you are looking for please contact us.