Mahle S224-3512HA Engine Piston

OE-Style Piston for Ford 7.3L Diesel

The Mahle S224-3512HA engine piston is an OE-quality replacement built for precise ring control, stable clearances, and consistent combustion performance. It is a direct-fit piston for 1994 Ford F-250 and 1994 Ford F-350 applications that use the specified standard-size setup.

• Mahle OE-quality engine piston for cylinder block service
• Ricardo bowl piston head design for diesel combustion chamber geometry
• Aluminium piston construction for controlled expansion and reduced noise
• Compensated ring grooves for proper ring loading and oil control
• Top compression ring thickness: 3.14
• Second compression ring thickness: 2.50
• Oil ring thickness: 3.50
• Piston pin outside diameter: 33.232
• Standard size, non-oversized
• Skirt non-coated

Detailed Product Overview

Mahle S224-3512HA is engineered to match OE piston requirements with expansion-controlled design features that help maintain small fitting clearances. That approach supports quieter operation, reduced wear, and improved oil control in the engine. This piston is listed for 1994 Ford F-250 and 1994 Ford F-350 models, and it cross-references Navistar 1816628C2 for the same application.

For buyers searching for a 1994 Ford F-250 piston, 1994 Ford F-350 engine piston, or Mahle S224-3512HA replacement piston, this part provides the dimensional and design details needed for a proper rebuild decision. Use ring set S42104 as specified in the fitment notes.

What This Piston Helps Address

• Worn or damaged piston surfaces during engine rebuilds
• Excessive oil consumption caused by poor ring sealing
• Combustion noise related to incorrect piston clearances
• Compression loss from piston wear or scoring
• Restoration of OE-style diesel combustion chamber geometry

Installation Notes

Verify bore size, ring specification, and pin diameter before installation. This piston is listed as standard size and is sold without rings. Confirm the required ring set, including ring # S42104, and match all measurements to the engine build sheet before assembly. Professional engine machining and measurement are recommended for final fitment.

Quality Assurance

Mahle is a major OE piston manufacturer, and this piston is built to OE-quality standards with features commonly used in original equipment applications. The design emphasizes controlled expansion, ring groove accuracy, and oil control for rebuild consistency.