Need to rebuild an engine? This DNJ piston ring set (part number PR3147.40) is for oversize pistons on popular 3.0L and 3.1L V6 engines. It fits a ton of cars from 1996 to 2009, including models from Buick (like the Century), Chevrolet (Corsica), Ford (Escape, Fusion), Mazda, Mercury, Pontiac, and Jaguar. Check your VIN (codes A or F for these engines) to be sure. DNJ has been making engine parts for over 20 years, and these rings are built to meet or even beat the original equipment (OE) quality standards. They're 100% tested for performance and durability, so you know they'll hold up. If you're doing a rebuild, replacing worn rings is key for restoring compression and power. This is a trusted brand used by pros and DIY mechanics. Just make sure you know your exact engine specs and piston size before ordering. A crucial component for a successful engine repair job.