AW55-50SN AW55-51SN AF23 AF33 Pressure Regulator & Boost Valve Sonnax 59947-12K

img{max-width:100%} AW55-50SN AW55-51SN AF23 AF33 Oversized Pressure Regulator & Boost Valve Sonnax 59947-12KWear at the balance end can cause harsh shifts, high line pressure, converter apply/release problems and lube-related issues. Wear at the other locations can result in soft shifts, low line pressure, and converter problems. Boost sleeve wear reduces the ability of line pressure to rise according to TCM command, resulting in slow line rise and late shifts. Late shifts can often create gear ratio codes. A worn boost sleeve in this unit can also cause a delay in reverse or slippage, eventually burning the low reverse (B3), 1-2 reverse (B5) band and or the direct clutch (C2).Boost valve assembly is manufactured from an upgraded highly wear-resistant sleeve and a hard-coat anodized aluminum valve to provide better wear resistance.Replacement pressure regulator valve is hard-coat anodized aluminum to provide better wear resistance than the original steel valve.The pressure regulator valve has longer length spools for increased valve support.NoteCheck step location of OE retainer first, and note. Use same height step on replacement valve.ContentsPressure Regulator ValvePressure Regulator SpringBoost SleeveBoost ValveIf you have any problem, please contact us immediately so we can resolve your issue. We have a technician available to assist you.This item is packaged for Professional Transmission Shops. It may also be packaged in transmission fluid as part of the manufacturing and distribution process and in no way means the item to have been used. We do not stock or sell used electrical parts. WARRANTY requests need to be accompanied with the appropriate code as diagnosed by a professional transmission shop.Vehicles must be professionally diagnosed for solenoid failure prior to purchase.We cannot guarantee any one item will fix all transmission problems.Solenoid failure is often accompanied by additional failures for example valve body failures, internal wear or damaged hard parts. APPLICATIONS:Equinox 2005-09 V6 3.4LAltima 2005-06 V6 3.5LMaxima 2004-06 V6 3.5LQuest 2004-08 V6 3.5LTorrent 2006-10 V6 3.4L9-3 2004-11 L4 2.0L9-5 2002-09 L4 2.3L; V6 3.0LIon Sedan 2003-04 L4 2.2LVue 2002-06 V6 3.0LXL-7 2007-08 V6 3.6LC30 2008-11 L5 2.5LC70 2001-04 L5 2.3L 2.4LC70 2005-11 L5 2.5LCross Country 2002 L5 2.4LS40 2001-04 L4 1.9LS40 2005-11 L5 2.4L 2.5LS40 2005-11 L5 2.5LS40 2008 L5 2.5L (Diesel)S60 2001-06 L5 2.3L 2.4LS60 2003-09 L5 2.4L 2.5LS60 2003-09 L5 2.5LS70 2000 L5 2.4LS70 2000 L5 2.4LS80 2004-06 L5 2.5LS80 2004-06 L5 2.5LV40 2001-04 L4 1.9LV50 2005-11 L5 2.4L 2.5LV50 2005-11 L5 2.5LV70 2000-07 L5 2.3L 2.4L 2.5LV70 2000-05 L5 2.3L 2.4L 2.5LXC70 2003-07 L5 2.5LXC90 2003-06 L5 2.5LXC90 2003-06 L5 2.5L  Parts ship daily from our distribution center. FREE SHIPPING on US Orders   GOT QUESTIONS on your specific Year/Make/Model? Send us a message ¿Habla español? Escríbanos con el año, la marca, y el modelo de su vehículo. Visit our eBay Store: Phoenix Transmission Parts for all of your Automatic Transmission Part needs Check out my other items! Be sure to add me to your favorites list!