EVIL ENERGY 5/8-Inch Silicone Heater Hose – 10ft, SAE J20R3 Class-A, 60 PSI, Black

Overview

Designed for demanding automotive cooling and heating applications, the EVIL ENERGY 5/8-Inch Silicone Heater Hose combines a flexible silicone core with braided polyester reinforcement. At 10 feet long, it offers routing versatility for compact engine bays while maintaining reliable coolant flow under heat cycling. The 5/8 inch inner diameter supports steady liquid movement, while the black exterior resists visible wear from engine heat and environment.

Compared with traditional materials, silicone with silicone inner/outer layers provides a broader temperature range and longer life in thermal cycles. The braided construction adds strength without sacrificing flexibility, helping the hose resist kinking and fatigue in everyday driving and maintenance tasks.

Key specs

• Size: 5/8" heater hose ID; ID tolerance ±0.4mm; OD: 15/16" (23.9mm); OD tolerance ±0.4mm; Length: 10 feet
• Working pressure: 60 psi; Burst pressure: 246 psi; Temperature range: -67°F to 356°F (-55°C to 180°C); Minimum Bend Radius: 79.5mm
• Material: Braided polyester fiber with silicone inner and outer layers; silicone offers a wider temperature range and longer life than EPDM
• Application: Ideal for transporting air, steam, water, coolant, and mildly acidic or alkaline fluids; suitable for automotive cooling and heating, water heaters, and similar systems
• Note: Not for carrying alcohol, fuel, engine oil, or lubricants

Material and build

The hose blends a silicone core with a durable silicone outer layer and a braided polyester reinforcement. This construction aims to maintain flexibility in high heat, resist stiffness through repeated temperature changes, and deliver consistent flow over long runs.

• Braided reinforcement plus silicone layers creates a sturdy yet pliable path for fluids
• Silicone’s broader temperature tolerance can help the hose cope with engine heat cycles and hot fluid supply

Real-world use and considerations

In real-world setups, the 10-foot length enables neat routing around tight engine components, reducing the risk of kinks while preserving flow. The 5/8" ID supports steady coolant movement in typical automotive cooling circuits and heating lines, while the material can handle steam and hot water encountered in some applications. Always verify compatibility with your specific media, and heed the note about fluids not intended for transport.

Why choose EVIL ENERGY

EVIL ENERGY specializes in durable, high-temperature hoses designed for automotive environments. This silicone heater hose balances performance with flexibility, offering a practical solution for professionals and DIY enthusiasts who value reliable operation without compromising routing options. While not a guarantee of outcomes, this hose presents a thoughtful fit for systems that require dependable heat tolerance and long service life.

Notes for ordering

Be sure to confirm the hose length, ID, and compatibility with your coolant or heating medium. If you’re replacing a worn hose, match the existing diameter and bend radius to avoid excessive stress at connection points.