{"title":"Silicone End Caps","description":"\u003cp\u003eSilicone End Caps from AutoSiliconeHoses are manufactured from high-quality extruded silicone to provide a secure and reliable seal for unused pipework and connections. Designed for flexibility and durability, these end caps are resistant to heat, ozone, and aging, making them suitable for a wide range of automotive, motorsport, and industrial applications. With operating capability from -50°C to +220°C and peak resistance up to +250°C, they deliver long-lasting performance even in demanding environments.\u003c\/p\u003e\n\u003cp\u003eThe collection covers a full range of sizes from 4 mm to 38 mm internal diameter, ensuring compatibility with both small-bore and larger pipework. Easy to install and remove, their unreinforced construction provides a snug push-fit design that maintains a secure seal without the need for clamps in many applications. Built to SAE J20R3 standards, they are trusted across industries where reliability and service life are essential.\u003c\/p\u003e\n\u003cp\u003eCommon uses include sealing off unused coolant lines, intake and boost pipework, pneumatic connections, and industrial fluid transfer outlets. Whether for temporary closure during system modifications or permanent sealing of redundant pipework, silicone end caps from AutoSiliconeHoses offer a practical and durable solution across both professional and performance environments.\u003c\/p\u003e","products":[{"product_id":"silicone-end-cap","title":"Silicone End Cap","description":"\u003cp\u003eSilicone End Caps from AutoSiliconeHoses are designed to provide a clean, reliable seal for unused pipework, tubing, or connections in automotive, industrial, and commercial systems. Manufactured from premium smooth extruded silicone compound and compliant with SAE J20R3 standards, these end caps deliver flexibility, durability, and resistance to heat, ozone, and aging. With a simple push-fit installation, they offer a practical solution for sealing applications where long service life and thermal stability are essential.\u003c\/p\u003e\n\n\u003ch3 style=\"line-height: 52px\"\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-quality smooth extruded silicone compound.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp\u003e\u003cstrong\u003eReinforcement:\u003c\/strong\u003e Unreinforced flexible silicone design.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp\u003e\u003cstrong\u003eInternal Diameter Range:\u003c\/strong\u003e 4 mm to 38 mm.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp\u003e\u003cstrong\u003eOverall Length:\u003c\/strong\u003e Typically 35 mm (20 mm size: 60 mm).\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp\u003e\u003cstrong\u003eInsertable Length:\u003c\/strong\u003e 30 mm.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp\u003e\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -50°C to +220°C, with peak up to +250°C.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp\u003e\u003cstrong\u003eStandard:\u003c\/strong\u003e SAE J20R3 compliant construction.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eConstructed from durable silicone, these end caps maintain flexibility even under continuous thermal cycling, making them ideal for applications where unused outlets or pipework must be safely sealed. Their unreinforced design ensures easy installation and removal while providing a snug fit for reliable closure. Resistant to weathering, ozone, and aging, they are suitable for both indoor and outdoor use in demanding environments.\u003c\/p\u003e\n\n\u003cp\u003eSilicone End Caps are commonly used in automotive coolant and intake systems, motorsport modifications, pneumatic lines, and industrial fluid handling where unused connections require temporary or permanent sealing. AutoSiliconeHoses supplies a wide size range to meet varied installation needs, offering long-lasting reliability across both performance and professional applications.\u003c\/p\u003e","brand":"Auto Silicone Hoses","offers":[{"title":"Black \/ 4mm","offer_id":55831850123641,"sku":"SEC004K-ASH","price":1.62,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 6mm","offer_id":55831850221945,"sku":"SEC006K-ASH","price":1.73,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 8mm","offer_id":55831850320249,"sku":"SEC008K-ASH","price":1.84,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 10mm","offer_id":55831850418553,"sku":"SEC010K-ASH","price":1.94,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 12mm","offer_id":55831850516857,"sku":"SEC012K-ASH","price":2.48,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 16mm","offer_id":55831850615161,"sku":"SEC016K-ASH","price":2.59,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 18mm","offer_id":55831850713465,"sku":"SEC018K-ASH","price":2.7,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 20mm","offer_id":55831850811769,"sku":"SEC020K-ASH","price":2.81,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 25mm","offer_id":55831850910073,"sku":"SEC025K-ASH","price":2.81,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 28mm","offer_id":55831851008377,"sku":"SEC028K-ASH","price":3.13,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 30mm","offer_id":55831851106681,"sku":"SEC030K-ASH","price":3.35,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 32mm","offer_id":55831851204985,"sku":"SEC032K-ASH","price":3.46,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 35mm","offer_id":55831851303289,"sku":"SEC035K-ASH","price":3.46,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 38mm","offer_id":55831851401593,"sku":"SEC038K-ASH","price":3.89,"currency_code":"GBP","in_stock":true},{"title":"Blue \/ 4mm","offer_id":55831850090873,"sku":"SEC004B-ASH","price":1.62,"currency_code":"GBP","in_stock":true},{"title":"Blue \/ 6mm","offer_id":55831850189177,"sku":"SEC006B-ASH","price":1.73,"currency_code":"GBP","in_stock":true},{"title":"Blue \/ 8mm","offer_id":55831850287481,"sku":"SEC008B-ASH","price":1.84,"currency_code":"GBP","in_stock":true},{"title":"Blue \/ 10mm","offer_id":55831850385785,"sku":"SEC010B-ASH","price":1.94,"currency_code":"GBP","in_stock":true},{"title":"Blue \/ 12mm","offer_id":55831850484089,"sku":"SEC012B-ASH","price":2.48,"currency_code":"GBP","in_stock":true},{"title":"Blue \/ 16mm","offer_id":55831850582393,"sku":"SEC016B-ASH","price":2.59,"currency_code":"GBP","in_stock":true},{"title":"Blue \/ 18mm","offer_id":55831850680697,"sku":"SEC018B-ASH","price":2.7,"currency_code":"GBP","in_stock":true},{"title":"Blue \/ 20mm","offer_id":55831850779001,"sku":"SEC020B-ASH","price":2.81,"currency_code":"GBP","in_stock":true},{"title":"Blue \/ 25mm","offer_id":55831850877305,"sku":"SEC025B-ASH","price":2.81,"currency_code":"GBP","in_stock":true},{"title":"Blue \/ 28mm","offer_id":55831850975609,"sku":"SEC028B-ASH","price":3.13,"currency_code":"GBP","in_stock":true},{"title":"Blue \/ 30mm","offer_id":55831851073913,"sku":"SEC030B-ASH","price":3.35,"currency_code":"GBP","in_stock":true},{"title":"Blue \/ 32mm","offer_id":55831851172217,"sku":"SEC032B-ASH","price":3.46,"currency_code":"GBP","in_stock":true},{"title":"Blue \/ 35mm","offer_id":55831851270521,"sku":"SEC035B-ASH","price":3.46,"currency_code":"GBP","in_stock":true},{"title":"Blue \/ 38mm","offer_id":55831851368825,"sku":"SEC038B-ASH","price":3.89,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 4mm","offer_id":55831850156409,"sku":"SEC004R-ASH","price":1.62,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 6mm","offer_id":55831850254713,"sku":"SEC006R-ASH","price":1.73,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 8mm","offer_id":55831850353017,"sku":"SEC008R-ASH","price":1.84,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 10mm","offer_id":55831850451321,"sku":"SEC010R-ASH","price":1.94,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 12mm","offer_id":55831850549625,"sku":"SEC012R-ASH","price":2.48,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 16mm","offer_id":55831850647929,"sku":"SEC016R-ASH","price":2.59,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 18mm","offer_id":55831850746233,"sku":"SEC018R-ASH","price":2.7,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 20mm","offer_id":55831850844537,"sku":"SEC020R-ASH","price":2.81,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 25mm","offer_id":55831850942841,"sku":"SEC025R-ASH","price":2.81,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 28mm","offer_id":55831851041145,"sku":"SEC028R-ASH","price":3.13,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 30mm","offer_id":55831851139449,"sku":"SEC030R-ASH","price":3.35,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 32mm","offer_id":55831851237753,"sku":"SEC032R-ASH","price":3.46,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 35mm","offer_id":55831851336057,"sku":"SEC035R-ASH","price":3.46,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 38mm","offer_id":55831851434361,"sku":"SEC038R-ASH","price":3.89,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/1892\/1081\/files\/SEC-B_ASH_Sh01.webp?v=1770307398"},{"product_id":"silicone-reinforced-blanking-cap","title":"Silicone Reinforced End Cap","description":"\u003cp\u003eSilicone Reinforced End Cap is a high-performance component designed to securely seal open pipework, intake systems, and fluid lines in automotive, motorsport, and industrial applications. Manufactured by AutoSiliconeHoses from premium multi-ply reinforced silicone with a polyester braid, the end cap delivers strength, flexibility, and exceptional heat resistance. Precision-moulded with a smooth internal finish, it ensures a tight, reliable fit for sealing unused or test ports while maintaining long-term durability under pressure and heat. Operating between -50°C and +220°C (peak +250°C) and compliant with SAEJ20R3 standards, the reinforced end cap provides professional-grade performance for demanding environments.\u003c\/p\u003e\n\n\u003ch3 style=\"line-height: 52px\"\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Smooth extruded silicone with polyester braid reinforcement.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp\u003e\u003cstrong\u003eInternal Diameter Range:\u003c\/strong\u003e 4 mm to 25 mm.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp\u003e\u003cstrong\u003eWall Thickness:\u003c\/strong\u003e 4 mm across all sizes.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp\u003e\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 5 bar to 12 bar (varies by size).\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp\u003e\u003cstrong\u003eBurst Pressure:\u003c\/strong\u003e 15 bar to 36 bar minimum.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp\u003e\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 60 mm with 50 mm insertable length.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp\u003e\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -50°C to +220°C continuous, +250°C peak.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp\u003e\u003cstrong\u003eStandard:\u003c\/strong\u003e SAEJ20R3 compliant.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e AutoSiliconeHoses performance silicone.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eSilicone Reinforced End Caps provide a secure and heat-resistant solution for sealing open-ended pipework in high-performance systems. Reinforced with a polyester braid, they maintain structural integrity under boost and vacuum conditions, while the multi-ply silicone construction offers resilience against pressure cycling, ozone, and vibration. The 60 mm overall length with 50 mm insertion depth ensures a strong and stable fit, reducing the risk of leaks or blow-off in demanding applications. Their smooth finish also ensures a professional appearance in the engine bay or industrial setup.\u003c\/p\u003e\n\n\u003cp\u003eApplications include sealing unused intercooler outlets, intake pipes, coolant lines, and other fluid transfer systems in automotive, motorsport, and industrial environments. Distributed under the AutoSiliconeHoses brand, silicone reinforced end caps deliver strength, flexibility, and long-lasting reliability where high temperatures and pressures are present.\u003c\/p\u003e","brand":"Auto Silicone Hoses","offers":[{"title":"4mm \/ Black","offer_id":55871581847929,"sku":"SRP004K-ASH","price":10.58,"currency_code":"GBP","in_stock":true},{"title":"6mm \/ Black","offer_id":55871581880697,"sku":"SRP006K-ASH","price":10.58,"currency_code":"GBP","in_stock":true},{"title":"8mm \/ Black","offer_id":55871581913465,"sku":"SRP008K-ASH","price":10.69,"currency_code":"GBP","in_stock":false},{"title":"10mm \/ Black","offer_id":55871581946233,"sku":"SRP010K-ASH","price":11.02,"currency_code":"GBP","in_stock":true},{"title":"12mm \/ Black","offer_id":55871581979001,"sku":"SRP012K-ASH","price":11.45,"currency_code":"GBP","in_stock":true},{"title":"16mm \/ Black","offer_id":55871582011769,"sku":"SRP016K-ASH","price":11.88,"currency_code":"GBP","in_stock":true},{"title":"18mm \/ Black","offer_id":55871582044537,"sku":"SRP018K-ASH","price":12.42,"currency_code":"GBP","in_stock":true},{"title":"20mm \/ Black","offer_id":55871582077305,"sku":"SRP020K-ASH","price":12.53,"currency_code":"GBP","in_stock":true},{"title":"25mm \/ Black","offer_id":55871582110073,"sku":"SRP025K-ASH","price":12.96,"currency_code":"GBP","in_stock":true},{"title":"4mm \/ Blue","offer_id":55973990957433,"sku":"SRP004B-ASH","price":10.58,"currency_code":"GBP","in_stock":true},{"title":"6mm \/ Blue","offer_id":55973990990201,"sku":"SRP006B-ASH","price":10.58,"currency_code":"GBP","in_stock":true},{"title":"8mm \/ Blue","offer_id":55871582142841,"sku":"SRP008B-ASH","price":10.69,"currency_code":"GBP","in_stock":true},{"title":"10mm \/ Blue","offer_id":55871582175609,"sku":"SRP010B-ASH","price":11.02,"currency_code":"GBP","in_stock":true},{"title":"12mm \/ Blue","offer_id":55871582208377,"sku":"SRP012B-ASH","price":11.45,"currency_code":"GBP","in_stock":true},{"title":"16mm \/ Blue","offer_id":55871582241145,"sku":"SRP016B-ASH","price":11.88,"currency_code":"GBP","in_stock":true},{"title":"18mm \/ Blue","offer_id":55871582273913,"sku":"SRP018B-ASH","price":12.42,"currency_code":"GBP","in_stock":true},{"title":"20mm \/ Blue","offer_id":55871582306681,"sku":"SRP020B-ASH","price":12.53,"currency_code":"GBP","in_stock":true},{"title":"25mm \/ Blue","offer_id":55871582339449,"sku":"SRP025B-ASH","price":12.96,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/1892\/1081\/files\/SRP_ASH_Sh01.webp?v=1770307520"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/1892\/1081\/collections\/SEC_K_Sh01.webp?v=1763556713","url":"https:\/\/ie.autosiliconehoses.com\/collections\/silicone-end-caps.oembed","provider":"Auto Silicone Hoses","version":"1.0","type":"link"}