HKS 4-6mm Reducer Fitting

HKS is well-known for its performance parts, especially in the import tuning scene. This reducer fitting is a small but important piece for custom plumbing setups. It allows you to connect a 4mm hose or line to a 6mm port or fitting, making it useful when adapting different size components in your engine bay.

This fitting is made from durable materials to handle the pressures and temperatures found in engine compartments. It's designed to create a secure connection, preventing leaks in vacuum lines or other fluid transfer systems. Having the right fittings like this one ensures your custom plumbing is reliable and functions as intended.