Piston Ring Set 4.505 HTD/HT 017 1/16 3/16

The AKERLY-CHILDS Piston Ring Set 4.505 HTD/HT 017 1/16 3/16 (Part No. 19527-5) is a premium eight-cylinder engine ring kit engineered for high-tension applications requiring file-fit precision assembly. Built from ductile iron with plasma moly coating, this piston ring set delivers superior wear resistance and thermal stability in demanding engine environments where OEM or rebuild specifications demand exact dimensional control.

Each ring measures 4.505 inches in bore diameter with a 0.017-inch gap tolerance, 1/16-inch radial thickness, and 3/16-inch axial thickness—specifications critical for proper ring sealing and blow-by control. The high-tension design maintains consistent pressure against cylinder walls throughout the engine's operational envelope, while the plasma moly surface treatment resists scuffing and extends ring life under sustained load. File-fit rings require honing to final bore specifications during installation, a process that ensures perfect ring-to-bore geometry and eliminates premature wear patterns common with loose-tolerance rings.

This ring set suits engine builders, machine shops, and rebuild technicians working on eight-cylinder engines where original equipment specifications or competition-grade performance demands precision ring geometry. File-fit rings are favored in racing, marine, and industrial applications where engine longevity and compression consistency outweigh the convenience of pre-fitted rings. The AKERLY-CHILDS brand holds established credibility in OEM engine component supply, making this set a reliable choice for customers who prioritize dimensional accuracy and material quality over generic alternatives.