{"product_id":"evil-energy-3-4-heater-hose-10-ft-epdm-100-psi-radiator-heater-coolant-line-sae-rated","title":"EVIL ENERGY 3\/4\" Heater Hose 10 ft EPDM 100 PSI - Radiator \u0026 Heater Coolant Line, SAE-Rated","description":"\u003cp\u003e\u003cstrong\u003eEVIL ENERGY 3\/4\" heater hose is a 10-foot EPDM coolant hose rated to 100 psi and built for engine cooling, heater, and overflow reservoir connections.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis 3\/4\" (19 mm ID) heater hose from EVIL ENERGY is engineered for automotive cooling system use, offering a blend of durability and flex across a wide temperature range. Constructed of EPDM rubber and built to exceed SAE 20R3 Standard Wall Class D-2 requirements, the hose handles coolant, water, and antifreeze while tolerating temperatures from -40°F up to 257°F. With a working pressure of 100 psi and a burst rating of 300 psi, it is suitable for heater cores, radiator connections, and overflow lines where reliable fluid transfer and resistance to heat and aging are essential.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this hose perform under heat and pressure?\u003c\/h3\u003e\n\n\u003cp\u003eThe EVIL ENERGY heater hose is designed for consistent performance in typical engine compartments. EPDM compound resists heat, ozone, and coolant chemicals while the hose wall meets stringent SAE standards to reduce risk of failure under pressure. Tested specifications give a practical balance of flexibility and strength for everyday automotive conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWorking pressure: 100 psi for routine system loads.\u003c\/li\u003e\n  \u003cli\u003eBurst pressure: 300 psi for safety margin under spikes.\u003c\/li\u003e\n  \u003cli\u003eTemperature tolerance: -40°F to 257°F for cold starts and hot operation.\u003c\/li\u003e\n  \u003cli\u003eMeets\/exceeds SAE 20R3 Standard Wall Class D-2 requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat sizes and dimensions should I expect for fitment?\u003c\/h3\u003e\n\n\u003cp\u003eThis hose is specified with clear internal and external dimensions to help you confirm compatibility. The internal diameter is 3\/4\" (19 mm) with a manufacturing tolerance, and the outer diameter and minimum bending radius provide guidance for routing in tight engine bays. Because length and diameter are precise, the hose works well for replacing existing 3\/4\" lines or for custom runs up to 10 feet.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInternal diameter: 3\/4\" (19 mm) ±0.6 mm tolerance.\u003c\/li\u003e\n  \u003cli\u003eOuter diameter: 1.10\" (28 mm) ±0.8 mm tolerance.\u003c\/li\u003e\n  \u003cli\u003eLength: 10 ft (3.05 m) continuous hose for multiple cuts.\u003c\/li\u003e\n  \u003cli\u003eMinimum bending radius: 152 mm to avoid kinking.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich fluids and applications are appropriate for this hose?\u003c\/h3\u003e\n\n\u003cp\u003eBecause the hose is EPDM and SAE-compliant, it works with a broad range of non-fuel automotive fluids used in cooling and heating circuits. It is intended for coolant and antifreeze circulation, heater core lines, radiator to overflow plumbing, and similar low- to mid-pressure coolant duties. Avoid use with petroleum-based fuels or where manufacturer specifications prohibit EPDM materials.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with coolant, water, and antifreeze solutions.\u003c\/li\u003e\n  \u003cli\u003eCommon uses: heater cores, radiator connections, overflow reservoir lines.\u003c\/li\u003e\n  \u003cli\u003eNot recommended for gasoline, diesel, or transmission fluids.\u003c\/li\u003e\n  \u003cli\u003eUse clamps rated to system pressure for secure connections.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I install and maintain the hose for longevity?\u003c\/h3\u003e\n\n\u003cp\u003eProper installation and periodic inspection extend service life: cut squarely, deburr ends, and secure with clamps sized to the 3\/4\" ID. Route the hose away from sharp edges and excessively hot surfaces; maintain the minimum bend radius to prevent stress. Routine checks for soft spots, leaks, or age-related cracking will catch issues before they cause coolant loss.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCut ends cleanly and fit with compatible clamps.\u003c\/li\u003e\n  \u003cli\u003eKeep at or above 152 mm bend radius to avoid kinks.\u003c\/li\u003e\n  \u003cli\u003eInspect periodically for abrasion, swelling, or cracks.\u003c\/li\u003e\n  \u003cli\u003eReplace if any softening or coolant seepage appears.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this hose for? EVIL ENERGY's 3\/4\" heater hose is aimed at DIY mechanics, professional technicians, and fleet maintenance teams needing a dependable coolant line for heater cores, radiator-to-overflow connections, and general coolant routing. Its 10-foot length accommodates multiple cuts for several repairs or one longer run, while the EPDM construction and SAE-compliant wall make it a practical, cost-effective choice where coolant compatibility, temperature range, and pressure handling are required. If you need a universal, replaceable hose that balances flexibility, temperature resistance, and working pressure for automotive cooling systems, this product fits those requirements.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this hose compatible with coolant and antifreeze?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The EPDM construction is compatible with coolant, water, and antifreeze formulations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I cut this 10-foot hose to size for multiple repairs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The 10 ft continuous length can be cut into sections; maintain clean cuts and use proper clamps.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"EVIL ENERGY","offers":[{"title":"Default Title","offer_id":55168688456023,"sku":"B0F1TQQD65","price":62.69,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/evil-energy-front-view-packaging-heater-hose.jpg?v=1790411809","url":"https:\/\/britishgarage.co.uk\/products\/evil-energy-3-4-heater-hose-10-ft-epdm-100-psi-radiator-heater-coolant-line-sae-rated","provider":"British Garage","version":"1.0","type":"link"}