{"product_id":"subaru-oil-control-valve-10921aa231","title":"Genuine Subaru 10921AA231 AVCS Oil Control Valve | Forester, Crosstrek, WRX, BRZ","description":"\u003cdiv style=\"background:#f4f4f4;border-radius:8px;padding:16px 20px;margin:0 0 18px 0\"\u003e\u003cul style=\"list-style:none;margin:0;padding:0\"\u003e\n\u003cli style=\"margin:4px 0\"\u003e✔ \u003cstrong\u003eGenuine Subaru AVCS Oil Control Valve (VVT Solenoid)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin:4px 0\"\u003e✔ Part Number: 10921AA231 — Replaces 10921AA230 \/ 10921AA220\u003c\/li\u003e\n\u003cli style=\"margin:4px 0\"\u003e✔ Common Fix for P0011 \u0026amp; P0021 Cam Timing Codes\u003c\/li\u003e\n\u003cli style=\"margin:4px 0\"\u003e✔ Updated Part Referenced in Subaru TSB 02-170-17R\u003c\/li\u003e\n\u003cli style=\"margin:4px 0\"\u003e✔ Fits FB\/FA Engines: Forester, Impreza, Crosstrek, Legacy, Outback, WRX, BRZ — Verify by VIN\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\n\u003ch2\u003eGenuine Subaru 10921AA231 AVCS Oil Control Valve\u003c\/h2\u003e\n\n\u003cp\u003eCheck engine light with code P0011 or P0021 — “intake camshaft timing over-advanced”? On Subaru FB and FA engines this very often traces back to the AVCS oil control valve: the solenoid fails or its filter screen clogs, and the cam phaser can no longer hold correct timing. Left alone, timing codes can mean hesitation, poor running, and unnecessary strain on the engine.\u003c\/p\u003e\n\n\u003cp\u003eThe Subaru 10921AA231 is the genuine AVCS oil control valve (intake VVT solenoid, “spool valve”) — the updated factory part that supersedes the earlier 10921AA230 and 10921AA220.\u003c\/p\u003e\n\n\u003ch3\u003eOEM Part Numbers\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e10921AA231 (current)\u003c\/li\u003e\n\u003cli\u003eReplaces: 10921AA230, 10921AA220\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAftermarket Cross Reference\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eCLOYES VTS176\u003c\/li\u003e\n\u003cli\u003eDORMAN 916-574\u003c\/li\u003e\n\u003cli\u003eSTANDARD MOTOR PRODUCTS VVT374\u003c\/li\u003e\n\u003cli\u003eNTK VV0159\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Symptoms of a Failing Oil Control Valve\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eCheck engine light with \u003cstrong\u003eP0011\u003c\/strong\u003e or \u003cstrong\u003eP0021\u003c\/strong\u003e (intake camshaft timing over-advanced, bank 1 \/ bank 2)\u003c\/li\u003e\n\u003cli\u003eCodes P000A–P000D (camshaft position slow response)\u003c\/li\u003e\n\u003cli\u003eHesitation or jerking on acceleration\u003c\/li\u003e\n\u003cli\u003eRough running while the ECU struggles to control cam timing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eA common root cause is a clogged filter screen on the valve or a failed solenoid.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eProduct Highlights\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e✔ Genuine Subaru OEM part — the same solenoid your dealer installs\u003c\/li\u003e\n\u003cli\u003e✔ Updated design 10921AA231, supersedes 10921AA230 \/ 10921AA220\u003c\/li\u003e\n\u003cli\u003e✔ The go-to repair for Subaru P0011 \/ P0021 cam timing codes\u003c\/li\u003e\n\u003cli\u003e✔ Fits the FB and FA engine families, including FA24 turbo\u003c\/li\u003e\n\u003cli\u003e✔ Complete valve assembly — solenoid ready to install\u003c\/li\u003e\n\u003cli\u003e✔ Priced well below the Subaru MSRP of $170.00\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCondition\u003c\/h3\u003e\n\n\u003cp\u003eNew Genuine Subaru OEM part\u003c\/p\u003e\n\n\u003ch3\u003eProduct Type\u003c\/h3\u003e\n\n\u003cp\u003eAVCS Oil Control Valve \/ Variable Valve Timing (VVT) Intake Solenoid\u003c\/p\u003e\n\n\u003ch3\u003eFunction\u003c\/h3\u003e\n\n\u003cp\u003eThe oil control valve regulates oil pressure to the intake camshaft AVCS phaser. The engine computer pulses the solenoid to advance or retard cam timing on the fly. Each engine uses \u003cstrong\u003etwo\u003c\/strong\u003e of these valves — one per bank — and they are identical, which allows a classic diagnostic trick: swap the bank 1 and bank 2 valves and see whether the trouble code follows the valve.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Vehicles\u003c\/h3\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eYears\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubaru Forester\u003c\/td\u003e\n\u003ctd\u003e2011–2021\u003c\/td\u003e\n\u003ctd\u003e2.0L \/ 2.5L H4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubaru Impreza\u003c\/td\u003e\n\u003ctd\u003e2012–2016, 2024–2025\u003c\/td\u003e\n\u003ctd\u003e2.0L \/ 2.5L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubaru XV Crosstrek\u003c\/td\u003e\n\u003ctd\u003e2013–2015\u003c\/td\u003e\n\u003ctd\u003e2.0L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubaru Crosstrek\u003c\/td\u003e\n\u003ctd\u003e2016–2021\u003c\/td\u003e\n\u003ctd\u003e2.0L \/ 2.5L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubaru Legacy\u003c\/td\u003e\n\u003ctd\u003e2013–2017\u003c\/td\u003e\n\u003ctd\u003e2.5L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubaru Outback\u003c\/td\u003e\n\u003ctd\u003e2013–2017\u003c\/td\u003e\n\u003ctd\u003e2.5L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubaru WRX\u003c\/td\u003e\n\u003ctd\u003e2015–2016, 2022–2025\u003c\/td\u003e\n\u003ctd\u003e2.0L turbo \/ 2.4L turbo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubaru BRZ\u003c\/td\u003e\n\u003ctd\u003e2013–2015, 2022–2025\u003c\/td\u003e\n\u003ctd\u003e2.0L \/ 2.4L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlease verify fitment with your VIN before ordering.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Service Bulletin Reference\u003c\/h3\u003e\n\n\u003cp\u003eSubaru TSB \u003cstrong\u003e02-170-17R\u003c\/strong\u003e covers AVCS oil control valve diagnostics and documents the introduction of the updated part 10921AA231 into production.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/static.nhtsa.gov\/odi\/tsbs\/2019\/MC-10160214-9999.pdf\" target=\"_blank\" rel=\"noopener\"\u003e📄 Subaru TSB 02-170-17R (PDF, NHTSA)\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e1 × Genuine Subaru 10921AA231 oil control valve assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: each engine uses two valves (bank 1 and bank 2). Order two if you plan to replace both.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10921AA231\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupersedes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10921AA230 \/ 10921AA220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeller SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003esubaru_ch_10921AA231\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAVCS Oil Control Valve (VVT Solenoid, Intake)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2-terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity per Engine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 (bank 1 \/ bank 2, identical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer List Price (MSRP)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$170.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\n\u003cp\u003eManufacturer warranty may vary by supplier, seller, and region. Please contact us before purchase if warranty confirmation is required.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Video\u003c\/h3\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.youtube.com\/watch?v=y8TKabmr4vI\" target=\"_blank\" rel=\"noopener\"\u003e\u003cimg src=\"https:\/\/img.youtube.com\/vi\/y8TKabmr4vI\/hqdefault.jpg\" alt=\"Subaru P0011, P0021 Cam\/VVT Over Advanced — diagnostics and OCV replacement\" style=\"max-width:100%;width:480px;border-radius:8px\" loading=\"lazy\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e▶ Subaru P0011 \/ P0021, Cam\/VVT Over Advanced — Real Auto Solutions\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eWill this fix my P0011 \/ P0021 code?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA failed or clogged AVCS oil control valve is one of the most common causes of P0011 and P0021 on Subaru FB\/FA engines. Diagnose first — a swap test between banks quickly shows whether the valve is at fault.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDo I need one valve or two?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eEach engine has two identical valves (bank 1 and bank 2). This listing is for one valve — order two to replace both sides.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this a genuine Subaru part?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eYes. Genuine Subaru part 10921AA231, the updated version that replaces 10921AA230 and 10921AA220.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMy old valve is 10921AA220 or 10921AA230 — is this the right replacement?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eYes. Subaru superseded both earlier numbers to 10921AA231; the update is referenced in TSB 02-170-17R.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhich engines does it fit?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe FB 2.0\/2.5 and FA family, including the FA24 turbo in the 2022+ WRX and 2022+ BRZ. Verify with your VIN before ordering.\u003c\/p\u003e","brand":"Subaru","offers":[{"title":"Default Title","offer_id":52213107982637,"sku":"subaru_ch_10921AA231","price":85.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/1723\/9341\/files\/subaru-oil-control-valve-10921aa231-view-01_ff85bf85-a400-4793-8536-d69878c18b05.jpg?v=1783674617","url":"https:\/\/globalsautoparts.com\/products\/subaru-oil-control-valve-10921aa231","provider":"globalsautoparts.com","version":"1.0","type":"link"}