EVIL ENERGY 3/4" Heater Hose 10ft EPDM Coolant Line with 10 Clamps — 100psi Working, 300psi Burst

This premium-grade hose is built from durable EPDM rubber and dimensioned for automotive cooling systems where reliable pressure, temperature tolerance, and chemical compatibility matter. With a 3/4" (19mm) inner diameter, a 1.10" (28mm) outer diameter and a ±0.6–0.8mm manufacturing tolerance, it fits common heater and coolant routing tasks while meeting SAE 20R3 Class D-2 standards.

How does this hose hold up under heat and pressure?

The EVIL ENERGY hose is engineered to withstand engine bay conditions: it operates from -40°F to 257°F and handles routine system pressures up to 100psi with a 300psi burst rating for safety margin. EPDM rubber resists swelling and softening from coolant and antifreeze, maintaining flexibility across a wide temperature range.

• Working pressure: 100psi; burst pressure: 300psi
• Temperature range: -40°F to 257°F for hot and cold climates
• Min bending radius: 152mm to prevent kinks and restriction

Will this hose fit my vehicle’s cooling or heater connections?

The hose uses a 3/4" (19mm) internal diameter, a common size for heater hoses and smaller coolant lines, and a 1.10" (28mm) outer diameter for reliable clamp fitment. The 10-foot length gives installers the flexibility to trim to custom runs and route between radiator, heater core, and overflow reservoir.

• ID: 3/4" (19mm) with ±0.6mm tolerance for consistent fit
• OD: 1.10" (28mm) with ±0.8mm tolerance for clamp compatibility
• Length: 10 feet, cut-to-fit for custom installations

What fluids and applications are compatible with this hose?

Made from EPDM, this hose is suitable for coolant mixtures, water, antifreeze formulations and general hot-water heater uses. It is designed specifically for automotive cooling systems, heater cores, radiator-to-overflow connections, and similar fluid-transfer tasks.

• Compatible media: coolant, antifreeze, water
• Typical uses: heater core lines, radiator to overflow, hot water heaters
• Meets SAE 20R3 Standard Wall Class D-2 for durability and safety

What comes in the package and how easy is installation?

Each kit includes a 10-foot length of EVIL ENERGY EPDM hose plus 10 hose clamps so you can cut, route and secure the hose immediately. The hose’s flexibility and minimum bending radius make it straightforward to install without kinking, and standard screw-type clamps provide firm, reusable sealing.

• Included: 10-foot EPDM hose and 10 clamps for immediate use
• Installation: trim-to-fit, use clamps at both ends for leak-free seals
• Design features: flexible, kink-resistant with specified bending radius

Who this is for: Drivers, mechanics and DIY enthusiasts who need a robust, cut-to-length heater or coolant line that resists heat, pressure and common antifreeze chemicals. It’s ideal for repairs, custom plumbing in older vehicles, replacement of worn factory hoses, and small hot-water system connections where SAE-class reliability and easy installation are required.