MAHLE 224-3409WR.020 Engine Piston Set (.020 Overbore Reduced Compression)

The MAHLE 224-3409WR.020 Engine Piston Set is a premium OE-quality replacement designed for Ford 7.3L Powerstroke diesel engines. This piston set is engineered for .020" overbore applications and features a .010" reduced compression height, making it ideal for engine rebuilds with deck height variations or when specific compression ratios are required.

Key Features:

• Complete set of 8 pistons with pre-installed piston rings, pins, and clips for convenient installation
• 4.14" bore diameter for .020" overbore applications
• .010" reduced compression height for optimal performance in modified engines
• Compensated ring grooves ensure proper ring loading and superior oil control
• Expansion-controlled design provides tight fitting clearances to reduce engine noise and wear
• Non-coated skirt design suitable for standard performance applications
• Pin size: 1.308" O.D. for proper fitment

What's Included:

• 8 precision-engineered aluminum pistons
• Complete piston ring sets for all cylinders
• Wrist pins and retaining clips

MAHLE is one of the largest OE piston manufacturers in the world, supplying major automotive manufacturers with original equipment components. These pistons are manufactured to meet or exceed OEM specifications, ensuring reliable performance, reduced emissions, and improved oil control. Perfect for professional engine builders and DIY rebuilds, this complete piston set provides everything needed for a quality 7.3L Powerstroke engine overhaul.

Note: This piston set requires cylinder boring and honing to .020" oversize. Professional measurement of cylinder bores and verification of piston-to-wall clearance and ring end-gaps is recommended before installation.