#8 Flare Plug

The #8 Flare Plug is a precision hydraulic fitting designed for high-performance marine and racing applications where fuel, coolant, or brake system integrity is non-negotiable. Built by XRP-XTREME RACING PRODUCTS, this AN-standard plug serves as a critical closure component in fuel lines, cooling systems, and hydraulic manifolds aboard performance boats, race boats, and dual-purpose watercraft. If you're running a tuned marine engine or competing in offshore racing, a reliable flare plug prevents costly leaks and system failures under extreme conditions.

Manufactured from aerospace-grade aluminum and finished in vibrant red anodize for corrosion resistance and visibility, the #8 Flare Plug features a 37-degree flare seat that mates securely with matching female AN fittings—the industry standard for marine engine plumbing. The hex head design allows positive grip and removal without damaging surrounding fittings, essential when working in confined engine compartments or below-deck spaces. At just 0.06 pounds and compact dimensions (2.7 × 1.2 × 3.65 inches), it integrates seamlessly into custom fuel delivery and cooling systems without adding weight or bulk.

Boaters and marine mechanics rely on #8 flare plugs for terminating unused fuel or coolant lines, sealing off manifold ports, and protecting open fittings during system service or modification. The red anodized finish resists saltwater corrosion and makes fittings easy to spot in engine bays. Installation requires only a wrench or socket—no special tools needed. Compatible with any #8 (1/2-inch) AN female port or flare fitting, this plug is an essential spare for anyone with a high-output marine engine, outboard fuel system, or custom hydraulic setup.