Gasket Fill Neck 12-Hole for Aluminum Cells

The RCI Gasket Fill Neck 12-Hole for Aluminum Cells (SKU RCI0113) is a precision fuel cell filler plate gasket engineered for high-performance circle track racing and motorsport applications. This component serves as the critical seal between your fuel cell and fill neck assembly, preventing fuel leakage during high-G cornering, acceleration, and braking events. Built to RCI's exacting standards, this gasket is essential maintenance and upgrade item for teams running aluminum fuel cells in competitive environments where reliability directly impacts safety and race outcomes.

This 12-hole gasket features a durable cork composite construction that resists fuel saturation, thermal cycling, and mechanical stress over extended use. The circular design with precisely machined bolt holes ensures uniform clamping load distribution across the fill neck interface, eliminating hot spots and micro-leaks that compromise fuel containment. Cork material remains the industry standard for fuel cell gaskets because it compresses consistently, maintains sealing integrity across temperature ranges encountered in motorsport, and provides cost-effective longevity compared to synthetic alternatives that can harden or shrink.

Racers and fuel system technicians should replace the RCI Gasket Fill Neck 12-Hole whenever disassembling fuel cell fill systems, as gasket material degrades with fuel exposure and thermal cycling—reusing old gaskets risks seepage that can saturate fuel containment foam or contaminate fuel delivery systems. Installation is straightforward: position the gasket between fill neck and aluminum cell housing, align the 12 bolt holes, and torque fasteners in a cross pattern to ensure even sealing. This gasket is compatible with RCI aluminum fuel cells and circle track fuel cell systems utilizing 12-bolt fill neck configurations.