EVIL ENERGY 5/8" EPDM Heater Hose Kit 10 ft with 10 Stainless Clamps — 100 PSI Rated, Reinforced

EVIL ENERGY's 5/8" heater hose is a 10‑foot EPDM coolant hose kit built for engine cooling lines, rated 100 PSI and supplied with ten stainless clamps for a complete install.

This hose set is designed for carrying coolant, water and antifreeze in automotive and small‑engine cooling systems. The hose uses durable EPDM rubber with a 5/8" (16 mm) inner diameter and a reinforced wall that meets SAE 20R3 Class D‑2 standards. With a wide operating temperature range and high burst pressure, it is intended as a dependable replacement piece for heater cores, radiator connections and overflow reservoir lines.

What are the key specifications and performance limits?

The EVIL ENERGY hose is sized and rated for common vehicle cooling applications. It lists both working and burst pressures so you can match it to system needs without guessing.

• Inner diameter: 5/8" (16 mm) with ±0.5 mm tolerance
• Outer diameter: 0.94" (24 mm) with ±0.6 mm tolerance
• Length: 10 feet (3.05 meters)
• Working pressure: 100 PSI; burst pressure: 300 PSI
• Temperature range: -40°F to 257°F (-40°C to 125°C)

How does the material and construction affect longevity?

This hose is made from EPDM rubber, a material chosen for heat and chemical resistance in automotive cooling systems. EPDM resists swelling and degradation from antifreeze and hot water, increasing service life compared with generic rubber hoses.

• EPDM composition resists coolant, water and common antifreeze formulas
• Meets/exceeds SAE 20R3 Standard Wall Class D‑2 for durability
• Min bending radius of 128 mm helps prevent kinking in tight runs
• Reinforced wall design supports pressure fluctuations and thermal cycling

What comes in the kit and how easy is installation?

The package contains a full 10‑foot length of hose and ten clamps — enough for multiple connection points or spare parts. The supplied clamps are suitable for hose barb and pipe fittings commonly found on heaters, radiators and overflow bottles.

• 10 feet of continuous 5/8" hose for flexible routing
• Ten clamps for secure, leak‑resistant connections
• Clamps sized to fit the hose ID and common fitting diameters
• Cut to length with a sharp tool; slide clamps on before fitting

Which systems and vehicles is this hose appropriate for?

Use this hose wherever a 5/8" EPDM coolant line is specified: heater cores, radiator bypass lines, overflow reservoir connections and other liquid cooling circuits. It is suitable for passenger cars, light trucks, lawn and garden equipment and many DIY projects.

• Heater core and cabin heater lines
• Radiator to overflow or reservoir connections
• Engine cooling bypass loops and small pump systems
• Non‑pressurized and low‑pressure coolant circuits on light vehicles

Who is this for? Mechanics, restoration hobbyists and DIY vehicle owners who need a reliable replacement hose will appreciate this EVIL ENERGY kit. It’s also useful for fleet maintenance and small equipment repair shops that require a durable, standardized 5/8" coolant line. Choose this hose when you need predictable sizing, EPDM chemical resistance and enough clamps to complete multiple connections or keep spares on hand.