6PCS 4.9Ft ID 1/8" 5/32" 1/4" 5/16" 3/8" 3/16" Vacuum Lines

Complete silicone vacuum hose kit for automotive vacuum and air line repair, offering six ID sizes, 64 nylon fittings, and a V‑style tube cutter for fast, reliable replacements.

This Purthog kit supplies six premeasured lengths of heavy‑duty silicone tubing—each about 4.9 feet long—in IDs from 1/8" to 3/8", plus a full set of nylon connectors and a compact cutter. Built to resist heat, pressure, and everyday engine bay wear, the set is sized and equipped to handle most vacuum, intake, and low-pressure air routing tasks in cars, trucks, and small engines.

What sizes are included and when would I use each?

The kit contains six inner-diameter options: 1/8", 5/32", 3/16", 1/4", 5/16", and 3/8", each supplied as roughly 59 inches of silicone tubing. These cover a wide range of factory and aftermarket vacuum fittings so you can match original lines or upgrade to silicone for longer life.

• 1/8"–3/16" IDs: small control lines, sensors, and emissions plumbing.
• 1/4" ID: common for many vacuum actuators and control hoses.
• 5/16"–3/8" IDs: larger supply lines, intake ducts, and low-pressure air runs.

How durable and temperature‑resistant is the tubing?

Purthog silicone tubing is made thicker than economy replacements to stand up to engine‑bay heat and vibrations. It’s rated for a broad operating range and higher working pressures than typical rubber lines, helping prevent softening, cracking, or sudden failure under routine stress.

• Temperature range: approximately -40°F to 428°F to handle cold starts and sustained heat.
• Working pressure rating up to 43 PSI; burst pressure significantly higher at room temperature.
• Thick wall construction for abrasion resistance and longer service life.

Are the fittings and connections reliable on installation?

The inner surface of the tubing is smooth and manufactured to seat tightly on precision nylon fittings included in the kit. Together they create a snug mechanical seal; combined with correct routing and clamps where needed, leaks and vacuum loss are minimized.

• 64 nylon connectors of assorted straight and joiner styles for common splices and branches.
• Smooth bore tubing ensures consistent fit and reduced air turbulence at joints.
• Hand‑flexible material lets you bend and route lines without heating or tools in many cases.

What tools and applications does the kit support?

Along with the tubing and fittings, the kit includes a V‑shaped tube cutter sized for these hoses so you get clean, square cuts for better seals. The materials are designed for air and water lines, radiator return loops, AC vacuum work, intake vacuum plumbing, and other low‑risk fluid or air duties—not for engine oil or primary coolant circulation.

• Includes a compact 3.28 x 1.29 x 0.95 inch V‑cutter for precise cuts.
• Suitable for intake vacuum lines, AC service lines, and small water runs.
• Not intended for direct engine oil or sealed high‑temperature coolant circuits.

Who is this for: DIY mechanics, professional technicians, and restoration hobbyists who need a ready set of durable vacuum and low‑pressure air hoses for maintenance, repairs, or upgrades. If you frequently replace brittle factory rubber lines or need multiple ID sizes and connectors on hand, this Purthog kit provides the lengths, fittings, and cutter to complete most engine‑bay hose jobs efficiently.