{"product_id":"yostiparts-vvt-variable-valve-timing-solenoid-for-subaru-h4-engines-10921aa220-916-574-oem-style-tested","title":"YOSTIPARTS VVT Variable Valve Timing Solenoid for Subaru H4 Engines — 10921AA220 \/ 916-574, OEM-Style Tested","description":"\u003cp\u003e\u003cstrong\u003eYOSTIPARTS Engine Variable Valve Timing (VVT) solenoid 916-574 \/ 10921AA220 is a direct-replacement camshaft oil control valve designed to restore proper VVT operation on compatible Subaru H4 engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis camshaft timing solenoid regulates oil flow to the variable valve timing system, helping the engine adjust valve timing across different speeds and loads. Built and tested to meet OEM-style specifications, the YOSTIPARTS VVT solenoid ships as a single boxed unit with clear part-number cross-references so you can confirm fitment before installation.\u003c\/p\u003e\n\n\u003ch3\u003eWhich Subaru models and engine sizes does this VVT solenoid fit?\u003c\/h3\u003e\n\u003cp\u003eThis VVT solenoid is intended for a range of Subaru H4 engines across several model years. Always verify the part number and engine code against your vehicle before purchasing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with BRZ 2013–2015 (H4 2.0L)\u003c\/li\u003e\n  \u003cli\u003eCrosstrek\/XV and XV Crosstrek 2013–2016, 2018–2020 and specific Mexico market years (H4 2.0L)\u003c\/li\u003e\n  \u003cli\u003eForester 2011–2020 (H4 2.0L and H4 2.5L depending on year)\u003c\/li\u003e\n  \u003cli\u003eImpreza 2012–2016 (H4 2.0L), Legacy 2013–2017 (H4 2.5L), Outback 2017 (H4 2.5L)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this replacement solenoid relate to OEM part numbers?\u003c\/h3\u003e\n\u003cp\u003eThe YOSTIPARTS unit cross-references several OEM codes so you can match it to your existing solenoid. It is offered as a compatible alternative for older or worn original valves, helping technicians and DIYers source a correct-fit replacement.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCross-reference numbers include: 916-574, 2T1210, 10921AA220, 10921AA230\u003c\/li\u003e\n  \u003cli\u003eAlso compatible with 10921AA231, 10921AA240, 10921AA241 variants in many applications\u003c\/li\u003e\n  \u003cli\u003eSold as a single solenoid with boxed packaging for safe shipping\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat quality checks and testing does YOSTIPARTS perform?\u003c\/h3\u003e\n\u003cp\u003eEach YOSTIPARTS VVT solenoid is manufactured to match OE-style specifications and undergoes testing before leaving the factory. This reduces the chance of early failure and helps ensure consistent oil control for cam phasing systems.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eProduced to meet original-equipment design criteria\u003c\/li\u003e\n  \u003cli\u003e100% tested for functional reliability prior to packaging\u003c\/li\u003e\n  \u003cli\u003eSupplied as a single unit so you can replace one faulty solenoid without buying multiples\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I check before buying and installing this part?\u003c\/h3\u003e\n\u003cp\u003eConfirming fitment is crucial: verify your vehicle year, engine displacement, and the OEM part number on the existing solenoid. If you’re uncertain, provide the VIN or part number when contacting the seller for assistance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompare the existing part number on your vehicle to the listed cross-references\u003c\/li\u003e\n  \u003cli\u003eCheck engine code (H4 2.0L or H4 2.5L) and model year compatibility\u003c\/li\u003e\n  \u003cli\u003eReach out to YOSTIPARTS customer support with VIN or photos if you need help confirming fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Mechanics, independent repair shops, and vehicle owners who need a reliable, OE-style replacement VVT solenoid for select Subaru H4 engines. It’s suited for drivers diagnosing VVT-related faults, technicians performing cam timing repairs, and anyone replacing a known-bad solenoid with a tested aftermarket alternative.\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: Is this VVT solenoid compatible with my 2015 Subaru WRX?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—this part cross-references the 2015 WRX 2.0L H4 application, but confirm your OEM part number matches one listed before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the unit come pre-tested?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, each YOSTIPARTS VVT solenoid is tested 100% for functional performance before shipment.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"YOSTIPARTS","offers":[{"title":"Default Title","offer_id":48085015232670,"sku":"B0F48DGRM6","price":40.82,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/yostiparts-vvt-solenoid-front-packaging.jpg?v=1785866761","url":"https:\/\/northtrailauto.ca\/products\/yostiparts-vvt-variable-valve-timing-solenoid-for-subaru-h4-engines-10921aa220-916-574-oem-style-tested","provider":"North Trail Auto","version":"1.0","type":"link"}