The Piston Rings for 3.9" Bore from A & I Products are essential for maintaining engine performance. These high-quality rings are designed to provide a tight seal, preventing oil leakage and ensuring optimal compression. Made from durable materials, they offer excellent resistance to wear and heat, prolonging engine life. Their precise dimensions ensure compatibility with various engine models, making installation easy. Ideal for agricultural and industrial engines, these piston rings are crucial for maintaining efficiency and performance.Piston rings for 3.9-inch bore engines, designed to provide proper sealing between the piston and cylinder wall. These piston rings, also known as compression rings or oil control rings, are made from durable cast iron or steel alloy to withstand high temperatures and pressures within the combustion chamber. Compatible with engines requiring a 3.9" bore size, these rings help maintain engine compression and reduce oil consumption. Manufactured by A & I PRODUCTS, model 31R6, they meet OEM specifications for fit and performance. Typical dimensions include precise ring thickness and diameter tailored to the 3.9" bore. Suitable for use in agricultural, industrial, and automotive engines. The 31R6 piston rings from A & I PRODUCTS are engineered for reliable sealing and longevity in demanding engine environments.
| Engine Parts > 172 CID Gas |
| Ford / New Holland TRACTOR: 4000 (GAS 1962-64) |
| Ford / New Holland TRACTOR: 800 SERIES (GAS 1958-62) |
| Ford / New Holland TRACTOR: 800 SERIES (1955-57) |
| Ford / New Holland TRACTOR: 900 SERIES (GAS 1958-62) |
| Ford / New Holland TRACTOR: 900 SERIES (1955-57) |
