Easily Vacuum Caps Rubber Plug Kit 165‑Piece, 14‑Size Assortment — Heat‑Resistant, Tear‑Resistant Seals

Easily Vacuum Caps Rubber Plug Kit is a 165-piece assortment of durable rubber vacuum caps and hose end plugs in 14 sizes designed to seal, protect and temporarily plug vacuum ports, tubing and sensors during maintenance or DIY repairs.

This kit gathers a wide range of commonly used plug sizes into a single, organized plastic case so you can quickly find a snug, airtight fit for carburetors, manifolds, coolant and vacuum lines, HVAC ports, and other automotive or workshop tasks. Each cap is molded from flexible, tear-resistant rubber formulated for heat, UV and corrosion resistance so it holds up during repairs and short-term service. The set includes multiple lengths for the same diameters to cover different port depths and tubing wall thicknesses.

How will these vacuum caps help during engine or HVAC maintenance?

They temporarily block open vacuum or coolant passages to prevent contamination while you work, plus they stop leaks that can affect diagnostics or idle behavior. Because the caps come in many diameters and lengths, you'll usually achieve a tight, reliable seal without stretching or cutting parts.

• Use on carburetor and manifold vacuum ports during testing and tune-ups
• Protect sensors and emissions ports from dirt and debris while disassembled
• Plug HVAC, coolant or fuel line ends during component swaps and inspections

Which sizes are included and how are they organized?

The kit contains 165 plugs across 14 size/length combinations to fit common tube outer diameters between 1/8" and 1/2". A clear plastic storage case sorts the pieces so you can quickly select the correct cap without spilling or searching through loose parts.

• 14 size variants: 1/8", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8", 1/2" with multiple length options
• Quantities per size range from 10–15 pieces for repeated use
• Compact, snap-close plastic case for tidy storage and portability

Are these plugs durable enough for workshop use?

Yes—the caps are made from flexible, heavy-duty rubber that resists tearing and stands up to exposure from heat, UV rays and common automotive fluids for short- to medium-term service. They are not permanent fittings but are built to withstand handling, routing and repeated installations during repairs.

• Thicker rubber body for puncture resistance and repeated use
• Good electric and corrosion resistance for automotive environments
• Flexible elasticity helps preserve seal across slightly varying tube sizes

How do I choose the right cap for a port or hose?

Measure the outer diameter of the tubing or the port opening and pick the cap sized closest to that measurement; if uncertain, try the next larger size for a snug fit. Select the length that covers the port depth without stretching the rubber excessively—multiple lengths in the kit give you options for shallow or deep ports.

• Measure tube OD and compare to the kit's size list before choosing
• For ports with burrs or rough edges, a cap can also protect hands and components
• Use longer caps for deeper fittings and shorter ones for surface-level plugs

Who this kit is for: The Easily 165-piece Vacuum Caps Rubber Plug Kit is aimed at mechanics, automotive hobbyists, HVAC technicians and DIYers who need a reliable set of temporary seals and protective plugs. If you frequently work on carburetors, intake manifolds, vacuum systems or any project with varied tubing and port sizes, this kit keeps commonly required caps on hand, neatly organized and ready for immediate use.