Description The HKS Rubber Bung (4mm) is a precision-engineered sealing solution designed to effectively block off water and air from various automotive applications. Ideal for use in setups where fluid integrity is crucial, this bung is not suitable for oil applications, making it a specialized component for tuners and enthusiasts who require reliable sealing. Constructed from high-quality rubber for durability Designed specifically for 4 mm openings Effectively prevents fluid ingress and air leaks Lightweight and compact for easy installation and removal Price is for a single unit The HKS Rubber Bung is particularly useful in engine compartment applications, cooling systems, and even temporary fittings in custom builds. By providing a tight seal, it helps maintain system pressure and prevents unwanted contamination, ensuring optimal performance in high-boost builds or when preparing vehicles for track use. This rubber bung is resistant to wear and tear, ensuring longevity in demanding environments. For best results, clean the area before installation, and avoid exposure to oils to maintain its integrity.
