EVIL ENERGY 5/8-inch Heater Hose – 10ft EPDM Coolant Radiator Hose, 100 PSI SAE 20R3

Overview

Meet EVIL ENERGY’s 5/8-inch heater hose, a straight 10 ft EPDM rubber line crafted for automotive cooling and home heating use. The hose features an inside diameter of 5/8 inch (16 mm) with a tight tolerance of ±0.5 mm and an outside diameter of 0.94 inch (24 mm) with a tolerance of ±0.6 mm. Built to endure demanding conditions, it blends reliability with flexible routing that helps you minimize joints in tight spaces.

Key specifications

• Size: ID 5/8" (16 mm); OD 0.94" (24 mm); Length: 10 ft
• Material: EPDM rubber for durability and chemical resistance
• Working Pressure: 100 psi; Burst Pressure: 300 psi; Temperature Range: -40°F to 257°F; Min Bending Radius: 128 mm
• Medium: Compatible with coolant, water, antifreeze, and related fluids
• Standards: Meets SAE 20R3 Standard Wall Class D-2 requirements

Applications and use cases

This hose is suitable for connecting components in automotive cooling systems, such as radiator-to-overflow connections and heater circuits, as well as for certain hot water heater setups. Its straight configuration supports cleaner routing in compact engine bays or along a hot water line, helping to reduce the number of joints where leaks can occur. Whether you’re upgrading an aging cooling path or replacing a worn segment, this hose provides a dependable link for circulating coolants and similar fluids.

Why choose EVIL ENERGY

• Durable EPDM material offers solid heat resistance and chemical compatibility
• 10 ft length provides flexibility to reach components without excessive splices
• High working pressure (100 psi) and strong burst rating (300 psi) add margin against pressure fluctuations
• Broad temperature tolerance supports diverse climates and fluid types
• SAE 20R3 standard alignment indicates compatibility with common automotive systems

Installation and care tips

Plan a route with a comfortable bend radius, aiming to stay above the minimum bending radius of 128 mm. Use appropriate hose clamps and cut squarely for a secure seal. Regularly inspect for signs of wear, such as cracking or soft spots, and replace if necessary. When in doubt, refer to your system’s manual or consult a professional for guidance.