6PCS 5Ft Vacuum Line,Multipurpose Vacuum Lines Automotive

IHOTDER 6PCS vacuum line kit supplies six 4.92 ft silicone hoses in incremental inner diameters for flexible, heat-resistant air and water routing in cars and small equipment.

This kit contains six 5-foot (4.92 ft) silicone vacuum hoses in the most commonly used inner diameters: 1/8" (3mm), 5/32" (4mm), 3/16" (5mm), 1/4" (6mm), 5/16" (8mm) and 3/8" (10mm). Each tube is black, smooth inside and out, and has a uniform wall thickness of about 3 mm. Designed for routing air and water, the hoses stay flexible from -40°F to 392°F and are intended as universal replacement lines for automotive vacuum, breather, coolant overflow and similar non-fuel applications.

Which sizes are included and when should I pick each one?

The kit covers a practical range of inner diameters so you can match the hose to existing fittings without cutting extra pieces. Use smaller diameters for sensors, vacuum lines and small actuators; larger diameters suit overflow bottles, intercooler piping drains and bigger fittings.

• 1/8" (3mm): thin vacuum and sensor lines
• 5/32" (4mm): small actuators and control hoses
• 3/16" (5mm): general vacuum and breather lines
• 1/4" (6mm): common vacuum and small coolant lines
• 5/16" (8mm): medium drains and larger breather runs
• 3/8" (10mm): overflow and larger air/water routing

How durable and heat-resistant are these silicone vacuum lines?

The hoses are made of quality silicone with both inner and outer smooth walls and consistent wall thickness for reliable sealing. They are built to tolerate engine-bay temperatures and remain flexible across a wide temperature band, resisting cracking and hardening that commonly affects cheaper rubber tubing.

• Temperature range: -40°F to 392°F (-40°C to 200°C)
• Uniform ~3 mm wall thickness for secure clamping
• Smooth inner surface for steady fluid and air flow

Can I use these hoses for fuel, oil, or pressurized gas?

These silicone tubes are designed for air and water applications only and are not rated for fuel, oil or high-pressure gas. Before installation, verify your application involves non-combustible liquids or vacuum/atmospheric air to avoid premature failure or safety hazards.

• Recommended: vacuum lines, breather hoses, overflow and coolant routing
• Not recommended: gasoline, diesel, engine oil, hydraulic fluids, or compressed gas
• Always check compatibility with fluids and operating pressures first

How easy is installation and what tools do I need?

Installation is straightforward: remove the worn hose, select the matching inner diameter hose from the kit, trim to length and secure it with a clamp or appropriate fitting. The silicone’s flexibility makes it simple to bend into tight runs while the smooth walls slide over fittings for quick assembly.

• Tools: utility knife or hose cutter, pliers, small clamps or hose clips
• Tip: slide clamps on before fitting the tube, then position and tighten
• Trim ends squarely for better seals and fewer leaks

Who is this for: The IHOTDER 6PCS Vacuum Line Kit is ideal for DIY mechanics, performance tuners and automotive hobbyists who need a versatile set of silicone hoses for vacuum, breather and non-fuel fluid routing. It also suits small engine repairs, home garage projects and prototype builds where a range of diameters and a durable, heat-tolerant material are required. If you need fuel-compatibility or high-pressure rated tubing, choose a product specifically labelled for those fluids.