12578324 12578326 12621251 12659419 89018112 4PCS Car Engine Piston & Rings Kit For - Captiva Cobalt Equinox HHR Impala 2.4L Upgrade your vehicle's engine performance with the 12578324 12578326 12621251 12659419 89018112 4PCS Car Engine Piston & Rings Kit.This set includes four pistons and rings engineered to improve engine efficiency and extend service life, delivering a smoother and more responsive driving experience.Constructed from aluminum, the components offer enhanced durability and resistance to operating stresses.Each part is factory tested to consistent performance and.Designed for compatibility with select , and models equipped with 2.4L engines, this kit fits vehicles including the Captiva, Cobalt, Equinox, HHR, and Impala.It serves as a suitable replacement solution for engine rebuilding or performance restoration.The design allows for proper fitment and function within the engine system.Installation instructions are not included, and professional installation is advised to correct setup.The kit is intended for use by individuals with mechanical experience working on automotive engines.