HKS G-Cupring 90.8mm

This is the HKS G-Cupring, specifically sized for a 90.8mm bore. It's a single component designed to work within your engine's cylinder head assembly. When you're rebuilding or modifying an engine, especially if you're looking for precise sealing solutions, parts like these are crucial for ensuring proper compression and preventing leaks.

HKS is known for making well-built performance engine parts, and this cupring is no exception. It's designed to provide a reliable seal in its intended application. The 90.8mm sizing means it's meant for specific engine builds where that bore diameter is required, often found in performance-oriented or modified engines where stock components might not be suitable.