WQZLNX AN-3 to AN-12 Plastic Caps & Plugs Kit, 144-Piece Red Set — Organized, Durable Seals for Fluid Lines

This kit gathers a wide selection of red plastic caps and plugs sized to fit AN-3, AN-4, AN-6, AN-8, AN-10, and AN-12 fluid lines so you can quickly seal hoses and fittings while you work. With organized sizing and durable construction, the set simplifies routine maintenance, engine work, and parts storage by keeping contaminants out and preventing damage to exposed threads and hose ends.

Which sizes are included and how many of each will I get?

The kit contains 144 pieces total, split into equal groups of caps and plugs across six standard AN sizes. This breadth ensures you have spares for common fittings used in automotive and performance plumbing.

• 12 caps and 12 plugs for each size: AN-3, AN-4, AN-6, AN-8, AN-10, AN-12
• 24 pieces per size group for quick matching and backups
• Clearly grouped for fast selection during repairs

How durable are these plastic caps and where can I use them?

Made from premium red plastic, the caps and plugs are designed to resist cracking and keep a reliable seal during handling, short-term storage, and disassembly operations. They are ideal for non-pressurized sealing and contamination prevention rather than long-term high-temperature exposure.

• Durable thermoplastic construction for everyday garage and shop use
• Suitable for automotive fluid lines, fuel and oil fittings, brake and cooling hoses during service
• Effective against dust, dirt, and moisture ingress while components are offline

How do these caps and plugs improve workflow during maintenance?

Organized quantities and matched sizes reduce downtime searching for matching covers and prevent damage to fittings while parts are moved or stored. Having a full set on hand speeds disassembly and reassembly tasks and lowers the chance of contamination-related rework.

• Pre-sorted by size for fast access and fewer interruptions
• Red color makes exposed ends easy to identify on busy benches or engine bays
• Plugs and caps protect threads and inner passages from debris and tools

Can I reuse these caps and are they easy to store?

The plastic design supports multiple uses when the pieces are kept clean and undamaged. The set’s packaging and size grouping help keep pieces organized between jobs.

• Reusable for many short-term service cycles if not deformed
• Compact kit fits into tool chests or parts boxes for ready access
• Grouped quantities reduce loss and make inventory checks simple

Who this is for: The WQZLNX 144-piece AN-3 to AN-12 caps and plugs kit is built for mechanics, home automotive enthusiasts, motorsport shops, and anyone who regularly services or stores fluid lines and fittings. It’s particularly useful for technicians who need a range of sizes on hand to protect hose ends and threaded adapters during maintenance, inspection, or transport.