Description
Product Overview
The HPS HTSC-350-L4 is a high‑temperature 4‑ply reinforced silicone hose engineered for demanding automotive and marine applications. Constructed from premium silicone with a robust 4‑layer reinforcement, it meets and exceeds SAEJ20 standards, providing excellent pressure tolerance and heat resistance. With a 3‑1/2″ inside diameter, the hose is ideal for custom turbo, intercooler, and radiator piping projects. UV and ozone resistance further extend its service life in outdoor environments.
![[Product front view showing all components]](https://www.smartright.store/wp-content/uploads/2026/06/74bf9089d3f64bc48f01b583b1775959.jpg)
Usage
Designed for unisex‑adult use in both marine and industrial settings, this hose excels in high‑heat turbocharger systems, intercooler lines, and radiator cooling circuits. It is perfect for DIY enthusiasts building custom intake or cooling solutions, as well as professionals needing reliable, heavy‑duty connections. Note: the silicone material is not compatible with fuel or oil.
Why Choose Us
HPS delivers a product that combines rigorous engineering with practical durability. Our silicone hose undergoes strict quality testing to ensure it meets industry standards and performs under extreme conditions. Backed by a reputable manufacturer, you receive a reliable component with consistent dimensions and material integrity, supported by responsive customer service.
Key Features
- 4‑ply reinforced silicone provides superior strength and heat resistance.
- Meets SAEJ20 standards for heavy‑duty pressure connections.
- UV and ozone resistant for long‑lasting outdoor performance.
- Ideal for marine, industrial, turbo, intercooler, and radiator applications.
- Responsive after‑sales support and warranty for peace of mind.
FAQ
Is this hose compatible with fuel or oil?
No, the silicone material is not suitable for direct contact with fuel or oil.
What is the inside diameter of the hose?
The hose has a 3‑1/2 inch inside diameter, fitting standard turbo and intercooler fittings.
Can this hose be used in marine environments?
Yes, its UV and ozone resistance makes it ideal for marine applications.
Does the hose meet industry standards?
It meets and exceeds SAEJ20 standards for high‑temperature silicone hoses.
What is the warranty period?
HPS offers a one‑year limited warranty covering manufacturing defects.





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