84 PCS Vacuum Lines Automotive Kit

YIENFBEV 84 PCS Vacuum Lines Automotive Kit supplies four 6.6 ft silicone vacuum hoses in multiple inner diameters plus 80 connectors for flexible, durable engine vacuum repairs and custom routing.

This complete vacuum hose kit is designed for home mechanics, professional technicians, and DIY fabricators who need adaptable tubing for engine bays, marine systems, and industrial air or water routing. It avoids materials that crack easily and offers wide temperature tolerance so you can shape, cut, and connect lines quickly while maintaining reliable performance under typical automotive conditions.

What sizes and parts come in this vacuum line kit?

The set includes four long silicone hoses of different inner diameters and eighty assorted connectors so you can build or repair multiple circuits without repeated trips to the store. Each hose is 6.6 feet long, giving ample length for routing and spares for future jobs.

• Hoses: 6.6 ft (2 m) each in 1/4", 3/16", 5/32" and 1/8" inner diameters.
• Connectors: 80 pieces in various shapes and sizes for tees, elbows, and straight joins.
• Material thickness: 3 mm wall for better wear resistance.

How durable are the silicone hoses under engine conditions?

These tubes are made from premium silicone with a thick wall to resist abrasion, kinking, and aging in hot engine bays. They are formulated to operate across broad temperatures and handle typical vacuum and low-pressure demands found in automotive and marine environments.

• Operating temperature range: -40°F to 392°F (-40°C to 200°C).
• Working pressure: up to 43 PSI; burst strength: up to 130 PSI at room temperature.
• 3 mm wall thickness reduces tearing and cracking over time.

Can I cut and customize these vacuum hoses for my vehicle?

Yes — the silicone tubing is flexible and easy to trim to exact lengths for custom layouts or repairs. The included connectors let you create custom junctions, change routing direction, or splice sections together without special tools.

• Cut-to-length friendly: use scissors or a utility knife for clean ends.
• Connector types support straight joins, T-splits, and elbow turns.
• Suitable for temporary service lines, permanent routing, and mock-ups.

What should I avoid using these hoses for?

While the kit is versatile for air and water handling, it is not designed for gasoline, diesel, or oil delivery and should not replace fuel lines or oil circulation components. Use the hoses where chemical compatibility and safety are verified for the intended fluid and pressure.

• Not recommended for fuel, oil, or other hydrocarbon transport.
• Intended for vacuum, air, coolant bypass, and non-corrosive fluids.
• Always check fittings and clamps for secure mating in pressurized systems.

Who is this for: This YIENFBEV 84-piece vacuum line kit is for anyone who needs a ready supply of high-quality silicone vacuum tubing and fittings — from backyard restorers and race-prep shops to marine hobbyists and industrial maintenance crews. If you want easy-to-handle hoses that tolerate heat and cold, allow precise routing, and include a broad selection of connectors for quick assembly, this set supplies the parts and flexibility to finish jobs faster and with fewer trips for replacements.