{"product_id":"boqnzn-4x4-vacuum-solenoid-check-valve-combo-kit-7l1z-9h465-b-ford-f-150-expedition-direct-fit","title":"BOQNZN 4x4 Vacuum Solenoid \u0026 Check Valve Combo Kit 7L1Z-9H465-B — Ford F-150\/Expedition Direct-Fit","description":"\u003cp\u003e\u003cstrong\u003eBOQNZN 7L1Z-9H465-B combo kit is a replacement vacuum solenoid valve and check valve pack engineered to restore proper 4WD actuation and eliminate front-end rattling on compatible Ford and Lincoln trucks.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis kit includes a precision-engineered vacuum solenoid and matching vacuum check valve designed to fit select Ford F-150 (2015–2020), Ford Expedition (2018+), and Lincoln Navigator (2018+) applications. Replacing both components at once avoids mismatched fittings and air leaks, helps maintain vacuum balance in the 4WD engagement system, and can prevent symptoms such as grinding wheels, noisy front hubs, or failure to shift into four-wheel drive.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this kit fix my 4WD engagement issues?\u003c\/h3\u003e\n\u003cp\u003eThe solenoid controls vacuum flow to the front axle actuators while the check valve preserves vacuum pressure. Worn or leaking parts cause weak or delayed engagement; installing both new parts restores reliable vacuum delivery so the front hubs engage cleanly and quietly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaces worn solenoid and check valve that cause weak vacuum.\u003c\/li\u003e\n  \u003cli\u003eRestores consistent vacuum pressure for front axle actuation.\u003c\/li\u003e\n  \u003cli\u003eReduces rattle and eliminates intermittent 4WD failures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat vehicles and part numbers are compatible with this combo?\u003c\/h3\u003e\n\u003cp\u003eThe BOQNZN kit targets specific Ford\/Lincoln models and matches several OEM part numbers for easy identification. Verify fitment against listed part numbers and model years before purchase to ensure compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits: 2015–2020 Ford F-150; 2018+ Ford Expedition; 2018+ Lincoln Navigator.\u003c\/li\u003e\n  \u003cli\u003eCheck valve reference numbers: 926-390, FL3Z3A788B, FL3Z-3A788-B-1, FL34-7A788-AD, FL3Z-3A788-A\/B.\u003c\/li\u003e\n  \u003cli\u003eSolenoid reference numbers: 7L1Z-9H465-B, 9L14-9H465-BA, 6L3Z-9H465-B and related OEM variants.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable and reliable are these replacement parts?\u003c\/h3\u003e\n\u003cp\u003eBOQNZN parts combine metal and high-grade plastics for the solenoid and robust plastics and elastomers for the check valve. They are engineered to resist heat and road conditions, offering stable performance and extended service life compared with degraded originals.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSolenoid built with metal components and durable plastics for strength.\u003c\/li\u003e\n  \u003cli\u003eCheck valve uses high-temperature plastics and rubber for sealing.\u003c\/li\u003e\n  \u003cli\u003ePrecision manufacturing minimizes air leaks and improves longevity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I install this myself, and what tools or time are required?\u003c\/h3\u003e\n\u003cp\u003eThe kit is designed for a direct, OEM-like fit so most DIYers can replace both parts quickly without specialized tools. Typical installation is straightforward and can be completed in about ten minutes depending on vehicle layout and access.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect-fit design matches original mounting and hose connections.\u003c\/li\u003e\n  \u003cli\u003eNo special calibration required after installation.\u003c\/li\u003e\n  \u003cli\u003eEstimated install time: approximately 10 minutes for experienced users.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: This BOQNZN combo kit is intended for owners and technicians who need a reliable, cost-effective repair for 4WD engagement problems on specified Ford F-150, Expedition, and Lincoln Navigator models. It’s a good choice for DIY mechanics who want a matched replacement set to prevent vacuum leaks, for shops doing a repair that restores quiet, consistent front-drive operation, and for anyone replacing aged or failing vacuum components to avoid more expensive drivetrain damage.\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: Does this kit fit my 2019 Ford F-150?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the kit lists compatibility for 2015–2020 Ford F-150. Verify your vehicle’s OEM part number against the provided references before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need special tools to install the solenoid and check valve?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No special tools are required; the parts are direct-fit and typically install in about 10 minutes for a competent DIYer.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BOQNZN","offers":[{"title":"Default Title","offer_id":48086704488606,"sku":"B0CFKFJW82","price":57.03,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/boqnzn-front-packaging-7l1z-9h465-b.jpg?v=1785902199","url":"https:\/\/northtrailauto.ca\/products\/boqnzn-4x4-vacuum-solenoid-check-valve-combo-kit-7l1z-9h465-b-ford-f-150-expedition-direct-fit","provider":"North Trail Auto","version":"1.0","type":"link"}