{"product_id":"ceyhtly-radiator-expansion-tank-cap-for-bmw-2006-2025-17117639020-17117521071","title":"CEYHTLY Radiator Expansion Tank Cap for BMW (2006-2025) – 17117639020 \/ 17117521071","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe CEYHTLY Radiator Expansion Tank Cap is an aftermarket replacement designed to fit a wide range of BMW models. It sits on the radiator filler port or expansion tank and serves as both a seal and a pressure regulator for the cooling system. When the cap shows signs of wear or damage, you may notice coolant leaks, fluctuating pressure, or occasional overheating. This cap offers a ready-to-install option to help restore a more reliable seal and support normal cooling system performance without claiming any guaranteed results.\u003c\/p\u003e\n\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eReliable sealing with fresh materials helps maintain the integrity of the coolant reservoir area.\u003c\/li\u003e\n  \u003cli\u003ePressure regulation design supports stable cooling system pressure and can reduce the risk of bubbleing or overpressure.\u003c\/li\u003e\n  \u003cli\u003eBroad compatibility across many BMW models, spanning multiple generations and chassis codes for a practical replacement option.\u003c\/li\u003e\n  \u003cli\u003eQuality you can trust with strict aftermarket standards, offering durability and consistent performance in typical driving conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFit and Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned to work with select BMW models from 2006 through 2025, including popular 1, 3, 5, 6, 7 series, X3, X5, X6, X7, Z4, and more.\u003c\/li\u003e\n  \u003cli\u003eTo ensure a proper match, verify your year, make, and model and review the compatibility notes in the listing before purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eQuality and Durability\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eConstructed from premium materials intended for long service life and reliable sealing in everyday driving conditions.\u003c\/li\u003e\n  \u003cli\u003eAftermarket replacement with quality control standards that aim to deliver dependable performance, even when the genuine part is not used.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003cp\u003eReplacing the cap is typically straightforward: remove the old cap, ensure the threads are clean, and twist on the new cap until it seats securely. After installation, visually inspect for leaks and monitor engine temperature during the next few drives.\u003c\/p\u003e\n\n\u003ch3\u003eReal World Scenarios\u003c\/h3\u003e\n\u003cp\u003eImagine steady cabin heat on a daily commute and a consistent engine temperature gauge during city driving. A properly seated cap can contribute to a calmer cooling cycle, with fewer surprises under the hood as you pull into your routine destinations.\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: What vehicles is the CEYHTLY Radiator Expansion Tank Cap compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This aftermarket cap fits many BMW models and helps regulate cooling-system pressure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How can I confirm this is the correct replacement for my car?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Check part numbers 17117639020 or 17117521071 and compare with your year, make, and model.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CEYHTLY","offers":[{"title":"Default Title","offer_id":42465809662037,"sku":"B0F21CB5D5","price":29.21,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/ceyhtly-radiator-cap-front-view.jpg?v=1778024324","url":"https:\/\/plentytorque.co.uk\/products\/ceyhtly-radiator-expansion-tank-cap-for-bmw-2006-2025-17117639020-17117521071","provider":"PlentyTorque","version":"1.0","type":"link"}