WQZLNX AN Cap and Plug Kit 144-Piece (AN-3 to AN-12) — Red plastic seals, organized size-sorted set

This organized kit gathers 12 caps and 12 plugs for each common AN size from AN-3 to AN-12, giving technicians and hobbyists an on-hand solution for keeping fluid systems clean and sealed while disassembling, transporting, or storing components. The parts are injection-molded from durable red plastic to resist everyday handling and to offer a visible, uniform look in a workshop or parts bin.

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

The set contains 144 pieces divided evenly across six AN sizes: AN-3, AN-4, AN-6, AN-8, AN-10, and AN-12. For each size you receive 12 plugs and 12 caps — enough to protect multiple fittings or to have spares for recurring jobs.

• AN sizes: 3, 4, 6, 8, 10, 12 — each with 12 caps and 12 plugs
• Total pieces: 144 for broad coverage of common automotive and racing lines
• Color: bright red for quick visual identification in a parts drawer

How do these plastic plugs and caps protect fluid lines during service?

These caps and plugs block dust, dirt, and moisture from entering open hoses, adapters, and ports while systems are disassembled or being stored. They create a simple physical barrier that reduces contamination risks and keeps internal passages clear until reassembly.

• Press-fit design for a snug seal on matching AN fittings
• Lightweight plastic resists chipping and won’t scratch compared to metal plugs
• Prevents debris entry during cleaning, transport, or long-term storage

Will these work for automotive, racing, and shop applications?

Yes — the kit was designed with common automotive and motorsport fluid fittings in mind, but it’s also useful in workshops, marine projects, and general plumbing tasks where AN-style ports need protection. The range of sizes covers most brake, fuel, oil, and vacuum lines using AN fittings.

• Useful for automotive maintenance, race car prep, and engine teardown
• Compatible with many hose ends, adapters, and threaded AN ports
• Handy for parts storage and shipping to prevent contamination

How is the kit organized and how easy is it to pick the right piece quickly?

Components are grouped by size so you can rapidly choose the correct cap or plug when you’re working under a time constraint. This arrangement reduces downtime and avoids mismatched parts that could compromise sealing or damage fittings.

• Size-sorted layout for quick selection during repairs
• Uniform color and shape simplify inventory checks and reorders
• Compact set fits on a shelf or in a toolbox for easy access

Who this kit is for: The WQZLNX 144-piece cap and plug kit is aimed at auto technicians, track crews, automotive restorers, and serious DIYers who need reliable, organized temporary seals for AN-style fluid lines. If you frequently disassemble fuel, oil, or brake systems, or you store components that should remain contaminant-free, this kit provides a practical, economical set of reusable plugs and caps to keep fittings protected between jobs.