Federal Mogul FP5398X30 Engine Piston +0.030 In. Oversize

The Federal Mogul FP5398X30 is a +0.030 inch oversized replacement engine piston from the Sealed Power line by Federal-Mogul. Designed for use in engine rebuilds where the cylinder bore has been machined 0.030 inches over the standard diameter, this piston restores proper piston-to-wall clearance and compression for reliable engine performance.

Key Features:

• Oversize: +0.030 in. (0.762 mm) over standard bore
• Manufactured to strict dimensional tolerances for consistent fit and seal
• Engineered to meet or exceed original equipment specifications
• Suitable for engine overhaul and bore restoration applications
• Part of Federal-Mogul's trusted Sealed Power engine component line

Federal-Mogul's Sealed Power pistons are manufactured to exacting standards, offering a dependable OE-quality solution for professional engine rebuilders and experienced DIY mechanics. The X30 oversize designation identifies this piston as a 0.030-inch overbore fitment — always verify your cylinder bore measurement before ordering.