-8 Plastic Caps 20pk

The -8 Plastic Caps 20pk from ALLSTAR PERFORMANCE are essential protective fittings for any serious engine builder, fabricator, or performance shop working with AN hydraulic and fuel systems. These caps serve a critical function in sealing unused -8 AN ports during assembly, testing, or system modifications—preventing fluid contamination, dirt ingress, and accidental spillage when components are temporarily disconnected or not yet installed.

Constructed from durable plastic material, these caps are engineered to resist fuel, oil, and coolant exposure without compromising their sealing integrity. The -8 AN thread size is specifically designed for AN fittings, making them ideal for high-pressure fuel rails, transmission cooler lines, and custom cooling circuits. Unlike aluminum or steel alternatives, plastic caps won't corrode, require no wrench, and install hand-tight—ideal for frequent assembly and disassembly during engine bay modifications.

Whether you're building a custom fuel delivery system, installing a nitrous kit, upgrading to a remote oil cooler, or managing multiple fuel rails during carbureted-to-EFI conversions, the 20-pack quantity ensures you'll have spares on hand for all your projects. These caps are essential for professional fabricators, race teams, and enthusiasts who demand reliability and repeatability when working with high-pressure systems.