Revive the performance of your 2007-2009 Nissan 2.5L Altima DOHC I4 (QR25DE) with the Engintech RCNI2.5AP Premium Engine Rebuild Kit. This premium kit delivers top-tier components for a complete engine overhaul. Includes premium pistons and rings (P4043(4), S89304), rod bearings (BB1005), main bearings (BC1004), balancer bearing (BS1042), lower gasket set (NI2.5CS-A), head gasket set (NI2.5HS-C), oil pump (EP042L), timing set (TS7164A), and thrust washer (TW1004). Verify fitment for your vehicle and view photos for further fitment information; contact us with any questions. Note: Kit photo is generic; actual parts shown individually. Rod and Main bearings are offered as the same size. Contact us for different sizes.