{"product_id":"evil-energy-3-4-silicone-heater-hose-10ft-sae-20r3-60-psi-working-67-f-to-356-f","title":"EVIL ENERGY 3\/4\" Silicone Heater Hose 10FT – SAE 20R3, 60 psi working, -67°F to 356°F","description":"\u003cp\u003e\u003cstrong\u003eEVIL ENERGY 3\/4\" Silicone Heater Hose is a durable 10-foot coolant and heater line built to SAE 20R3 Class A standards, handling -67°F to 356°F and rated to 60 psi working pressure.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis silicone heater hose combines braided polyester reinforcement with inner and outer silicone layers to deliver extended temperature tolerance and long service life compared with conventional EPDM hoses. It is designed for coolant and heating-system circulation, water transport, steam, and mild chemical service where compatibility allows. The hose is supplied as a 10-foot length with tight dimensional tolerances to simplify cutting and fitting for automotive, marine, or HVAC repairs and custom installations.\u003c\/p\u003e\n\n\u003ch3\u003eWhat are the exact dimensions and tolerances for this hose?\u003c\/h3\u003e\n\u003cp\u003eThe hose has a nominal inner diameter of 3\/4\" (19 mm) and an outer diameter of approximately 1-1\/16\" (27 mm), with ID and OD tolerances of ±0.4 mm. A 10-foot length is provided to cover most routing needs, and the minimum bend radius is 95 mm to guide routing without kinking.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInner diameter: 3\/4\" (19 mm) ±0.4 mm\u003c\/li\u003e\n  \u003cli\u003eOuter diameter: 1-1\/16\" (27 mm) ±0.4 mm\u003c\/li\u003e\n  \u003cli\u003eLength: 10 feet (3.05 m)\u003c\/li\u003e\n  \u003cli\u003eMinimum bend radius: 95 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does it perform under pressure and temperature extremes?\u003c\/h3\u003e\n\u003cp\u003eThis hose is rated for a 60 psi working pressure and has a burst pressure around 203 psi, offering a wide safety margin for typical coolant and heater system use. Its silicone construction maintains integrity across a broad temperature band, making it suitable for both very cold starts and sustained high-heat conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWorking pressure: 60 psi\u003c\/li\u003e\n  \u003cli\u003eBurst pressure: ~203 psi\u003c\/li\u003e\n  \u003cli\u003eTemperature range: -67°F to 356°F (-55°C to 180°C)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials are used and what fluids are appropriate?\u003c\/h3\u003e\n\u003cp\u003eThe hose features braided polyester reinforcement sandwiched between silicone inner and outer layers, which increases longevity and temperature resistance compared with EPDM-based hoses. It is suitable for water, coolant, steam, transport air, and weak acidic or alkaline fluids; however, it is not compatible with alcohols, fuels, engine oil, or lubricants.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReinforcement: braided polyester fiber\u003c\/li\u003e\n  \u003cli\u003eInner\/outer: silicone compound\u003c\/li\u003e\n  \u003cli\u003eCompatible with: water, coolant, steam, mild acids\/alkalis\u003c\/li\u003e\n  \u003cli\u003eNot for: alcohol, fuel, engine oil, lubricants\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is it to install and maintain?\u003c\/h3\u003e\n\u003cp\u003eThe hose comes as a continuous 10-foot length that can be trimmed to fit with standard hose-cutting tools; its dimensional tolerances and braided construction help ensure reliable clamp seals. Routine inspection for abrasion or chemical damage is recommended, and the silicone outer layer resists cracking and UV degradation better than many rubber alternatives.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSupplied as 10-foot continuous length for custom cuts\u003c\/li\u003e\n  \u003cli\u003eTrim with proper hose cutters for clean ends\u003c\/li\u003e\n  \u003cli\u003eUse standard hose clamps rated for coolant systems\u003c\/li\u003e\n  \u003cli\u003eInspect periodically for abrasion or incompatible chemical exposure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The EVIL ENERGY 3\/4\" Silicone Heater Hose is aimed at vehicle owners, mechanics, restorers, and HVAC or marine technicians who need a reliable replacement or custom hose for coolant and heating circuits. If you need a hose with broad temperature resilience, polyester reinforcement, and precise dimensions for clamp sealing—without compatibility for fuels or oils—this silicone line offers a long-lasting, flexible solution.\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: Can this silicone hose carry engine oil or gasoline?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. This hose is not compatible with engine oil, gasoline, alcohol, or lubricants; use it for coolant, water, steam, and mild acids\/alkalis only.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will it fit standard 3\/4\" hose clamps?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The 3\/4\" (19mm) ID with ±0.4mm tolerance is designed to work with standard clamps sized for 3\/4\" hoses.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"EVIL ENERGY","offers":[{"title":"Default Title","offer_id":67587234496697,"sku":"B0D9LF6C3T","price":96.33,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/evil-energy-front-packaging-10ft-hose.jpg?v=1790502058","url":"https:\/\/redleafauto.ca\/products\/evil-energy-3-4-silicone-heater-hose-10ft-sae-20r3-60-psi-working-67-f-to-356-f","provider":"Redleaf Auto","version":"1.0","type":"link"}