Mahle OE Ford 5.4L PI90L91+A4 .040 w/ PCR Eng Set Piston With Rings Set (Set of 8)

If you're rebuilding the engine in your Ford truck or SUV, Mahle's OE Piston and Ring Set is a solid choice. This set is specifically for the 5.4L 2-valve PI (Performance Improved) engine and comes with pistons that are .040 inches undersize, ready for installation with the included piston rings, pin, and clips. Mahle is one of the largest original equipment piston manufacturers in the world, so you know you're getting parts that meet factory specifications.

These pistons feature compensated ring grooves, which help ensure proper ring loading and excellent oil control. They also use an expansion-controlled design, allowing for tighter piston-to-wall clearances. This reduces engine noise, wear, and emissions, while also improving overall oil management. Because they are OE quality, you can expect them to fit right and perform as the original equipment did.

This set is designed to fit a wide range of Ford and Lincoln vehicles, including models like the Ford E-Series vans, Expedition, F-150, F-250, F-350, and the Lincoln Navigator. Having the rings pre-mounted saves you time and ensures correct installation, making your engine rebuild smoother.