4 Way Inline Bulkhead #6 & #10 O-Ring

The 4 Way Inline Bulkhead #6 & #10 O-Ring from Vintage Air is a precision fluid distribution manifold designed for custom cooling and vacuum systems in hot rods, classic cars, and performance vehicles. This streamlined bulkhead plate consolidates multiple AN port connections into a single compact assembly, eliminating the need for multiple fittings and hose runs. Whether you're building a modern air-conditioning retrofit, managing intercooler circuits, or organizing hydraulic lines, this component serves as the central hub for four separate inline connections, making it essential for any builder prioritizing clean engine bay organization and reliable flow management.

Constructed from lightweight aluminum and finished in polished form, this bulkhead features dual port sizes—#6 AN Male O-Ring and #10 AN Male O-Ring configurations—allowing flexible hose sizing within a single manifold. The O-Ring face seals provide superior leak-free performance compared to traditional JIC fittings, particularly important in high-vibration automotive environments where fatigue-induced leaks compromise system integrity. The aluminum construction balances durability with minimal weight addition, while the polished finish resists corrosion and maintains a professional appearance under the hood. The inline design means no external porting is required, making this an ideal choice for tight engine compartments where traditional bulkhead manifolds won't fit.

This 4 Way Inline Bulkhead #6 & #10 O-Ring is perfect for fabricators and enthusiasts tackling vintage air conditioning conversions, fuel system upgrades, or custom cooling loops where space is premium and port consolidation is critical. Installation requires AN-compliant hoses rated for your system's operating pressure; the dual port sizing ensures compatibility with both larger primary circuits and smaller pilot or secondary lines. Weighing just 0.49 pounds with compact dimensions of 5.95 x 1.4 x 6.2 inches, this manifold fits into confined spaces without sacrificing flow capacity. Anyone building a show-quality or high-performance cooling system will appreciate the engineering efficiency and polished aesthetic this bulkhead delivers.