This kit includes both the K111 and K112 accumulator/servo pistons used in Toyota CVT transmissions across a wide range of 2003–2015 models. Signs You May Need This Kit: Harsh or delayed shifts/ratio changes typical of a CVT accumulator issue Fluid contamination or visible piston seal wear during teardown Shudder or hesitation under load Compatibility: Fits Toyota CVT units used in RAV4, Corolla, Avensis, Estima, Alphard, Wish, Isis, Blade, Mark X Zio, and Vanguard, 2003–2015 — confirm your specific CVT unit code. Installation Note: Both pistons (K111 and K112) are typically replaced together as a set during a CVT rebuild, even if only one shows wear. Vehicle TOYOTAALPHARD 2008-2014 CVT F/4WD L4 2.4LBLADE 2006-2012 CVT F/4WD L4 2.4LESTIMA 2006-2015 CVT F/4WD L4 2.4LMARK X ZIO, VANGUARD 2007-2013 CVT F/4WD L4 2.4LRAV4 2005-2015 CVT F/4WD L4 2.0L 2.4LAVENSIS 2008-2015 CVT FWD L4 2.0LCOROLLA 2010-2015 CVT FWD L4 2.0LEZ 2011-2015 CVT FWD L4 2.0LISIS 2004-2015 CVT F/4WD L4 2.0LRAV4 2013-2015 CVT F/4WD L4 2.0LVOXY 2004-2007 CVT F/4WD L4 2.0LWISH 2009-2015 CVT FWD L4 2.0L Alternate Words: Bonded Piston, Automatic Transmission, Piston Kits, Piston, Servo