{"product_id":"motorcraft-rt1253-thermostat-ford-3-5l-3-7l","title":"Motorcraft RT-1253 Thermostat Assembly Ford 3.5L 3.7L 2005–2020 | F-150 Mustang Edge + Install Video","description":"\u003cp\u003eMotorcraft RT-1253 Thermostat Assembly — Ford 3.5L and 3.7L 2005–2020\u003c\/p\u003e\n\u003cp\u003eRegain optimum engine temperature control with the Motorcraft RT-1253 Engine Coolant Thermostat Assembly. Specifically designed for Ford 3.5L (non-turbo) and 3.7L engines, this OEM thermostat ensures your engine reaches and maintains its correct operating temperature, protecting against overheating and maximizing fuel efficiency.\u003c\/p\u003e\n\u003cp\u003e🎥 FREE Step-by-Step Installation Video Included\u003cbr\u003eEvery order includes access to our dedicated installation video guide, so you can replace your thermostat quickly and safely without needing a mechanic.\u003c\/p\u003e\n\u003cp\u003eKey Features\u003cbr\u003e- Motorcraft Part No: RT-1253 | Ford OEM: 1X4Z-8575-B\u003cbr\u003e- Thermostat gasket included — no need to purchase separately\u003cbr\u003e- Clears fault codes: P0128, P0125\u003cbr\u003e- Factory-set correct opening temperature for 3.5L and 3.7L engines\u003cbr\u003e- Directly compatible OEM replacement part — no modifications required\u003cbr\u003e- Compatible only with 3.5L (non-turbocharged) and 3.7L engines\u003cbr\u003e- Free installation video guide included\u003c\/p\u003e\n\u003cp\u003eImportant: This thermostat is NOT compatible with the 3.5L EcoBoost (turbocharged) engine. Please verify your engine type before ordering.\u003c\/p\u003e\n\u003cp\u003eSigns You Need a New Thermostat\u003cbr\u003e- Engine Malfunction Light (P0128 \/ P0125)\u003cbr\u003e- Engine warms up slowly or runs too cold\u003cbr\u003e- Heater blows cold air\u003cbr\u003e- Low fuel consumption\u003cbr\u003e- Temperature gauge stays consistently low\u003c\/p\u003e\n\u003cp\u003eVehicle Compatibility (3.5L Non-Turbo and 3.7L Only)\u003cbr\u003e- 2011–2014 Ford F-150 3.7L V6\u003cbr\u003e- 2011–2020 Ford Mustang 3.7L V6\u003cbr\u003e- 2007–2014 Ford Edge 3.5L V6\u003cbr\u003e- 2007–2012 Ford Fusion 3.5L V6\u003cbr\u003e- 2005–2011 Ford Five Hundred\/Taurus 3.5L V6\u003cbr\u003e- 2009–2019 Ford Flex 3.5L V6\u003cbr\u003e- 2009–2019 Lincoln MKS\/MKT\/MKX 3.5L V6\u003c\/p\u003e\n\u003cp\u003ePlease verify your engine type and trim level before ordering.\u003c\/p\u003e\n\u003cp\u003ePackage Contents\u003cbr\u003e- 1 x Motorcraft RT-1253 Thermostat Assembly\u003cbr\u003e- 1 x Thermostat Gasket\u003cbr\u003e- 🎥 Access to installation video guide\u003c\/p\u003e\n\u003cp\u003eWhy Choose SayParts?\u003c\/p\u003e\n\u003cp\u003eWe include a free installation video with every order so you can get the job done right the first time. Genuine Motorcraft OEM parts, fast US shipping, and real support when you need it.\u003c\/p\u003e\n\u003cp\u003e✅ Genuine Motorcraft OEM | 📦 Fast US Shipping | 🎥 Free Installation Video | 💰 Best Price Guarantee\u003c\/p\u003e","brand":"SayParts","offers":[{"title":"Default Title","offer_id":49837665124592,"sku":"SAY-FRD-CLG-RT1253","price":59.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/5957\/4000\/files\/s-l1600-2026-06-13T154040.742.webp?v=1781354507","url":"https:\/\/sayparts.com\/products\/motorcraft-rt1253-thermostat-ford-3-5l-3-7l","provider":"SayParts","version":"1.0","type":"link"}