Tnisesm 71Pcs Vacuum Line Kit

Tnisesm 71Pcs Vacuum Line Kit supplies six 5‑foot high‑temperature silicone vacuum hoses and 65 hardwearing nylon connectors for versatile automotive, marine, and DIY piping needs.

This comprehensive kit bundles multiple hose diameters with an assortment of fittings so you can repair, reroute, or prototype vacuum and coolant air lines without buying parts one at a time. The silicone tubing is reinforced for stability across wide temperatures and the connectors are molded from heat‑resistant nylon 66, making the set useful for engine bays, marine engines, turbo plumbing mockups, laboratory fixtures, or home workshop projects. Note: the hoses are intended for air and water only, not fuel or oil.

What hose sizes and connector types are included?

The kit contains six different inner diameters of silicone tubing, each supplied in a 5‑foot length, alongside 65 assorted nylon fittings to tackle common routing tasks. This selection covers the small precision lines and the larger breather or coolant hoses used in many vehicles and machines.

• Hose sizes (ID): 1/8" (3mm), 5/32" (4mm), 3/16" (5mm), 1/4" (6mm), 5/16" (8mm), 3/8" (10mm)
• 65 connectors in 12 sizes: straight joins, T‑connectors, reducers, and end caps to match the hoses
• Each hose length: 5 feet — good for multiple repairs or prototyping runs

How durable and heat‑resistant are these hoses?

The tubing is made from reinforced silicone with a 3mm wall thickness engineered for strength under pressure and thermal stress. Nylon 66 connectors resist high temperatures up to 240°C (460°F), and the hoses themselves tolerate a broad temperature range for demanding engine and marine environments.

• Working pressure: about 43 PSI; burst pressure: up to 130 PSI at room temperature
• Temperature rating: -76°F to 392°F (-60°C to 200°C)
• Reinforced silicone construction for kink resistance and longer service life

What applications does this vacuum line kit suit?

This kit is designed for general purpose air and water routing where durable, flexible tubing and secure connections are needed. It is ideal for automotive vacuum lines, marine bilge or venting systems, prototype turbo plumbing (air only), and workshop tasks requiring repeatable, clean connections.

• Automotive: vacuum hoses, emissions plumbing, intake vacuum lines (avoid fuel/oil)
• Marine: bilge venting, freshwater circulation, non‑fuel systems
• DIY and prototyping: turbo mockups, radiator shims for airflow tests, lab air lines

How do I choose the right hose and connector for my repair?

Select the hose whose inner diameter closely matches the barb or port you intend to attach to; use reducers or T‑pieces from the connector assortment to transition between sizes. For permanent installs in high‑heat zones, double‑check clearance and secure clamps where appropriate.

• Measure port ID and choose matching hose ID for a snug press fit
• Use a reducer fitting when connecting mismatched diameters; add clamps in high‑pressure or high‑vibration areas
• Reserve hoses for air/water only and avoid contact with fuel, oil, or solvents

Who is this for? The Tnisesm 71Pcs Vacuum Line Kit is aimed at mechanics, hobbyists, boat owners, and engineers who need a flexible, ready‑to‑use assortment of silicone vacuum hoses and connectors. It’s well suited to anyone building prototypes, doing routine engine bay repairs, or maintaining non‑fuel fluid and air systems who wants an all‑in‑one, high‑temperature capable hose set.