Sealed Power 2783PNR Engine Piston

Sealed Power 2783PNR Engine Piston Overview

Sealed Power 2783PNR is a premium engine piston for select Chevrolet and GMC 6.6L diesel applications. It features a cast aluminum construction, bowl-style piston head, and dimensions matched to the specified cylinder bore and compression height for accurate engine rebuilding.

Built for 2006-2010 Chevrolet Express 2500, Chevrolet Express 3500, Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Savana 2500, GMC Savana 3500, GMC Sierra 2500 HD, and GMC Sierra 3500 HD applications, this piston is also listed for 2007 Chevrolet Silverado 2500 HD Classic, Chevrolet Silverado 3500 Classic, GMC Sierra 2500 HD Classic, and GMC Sierra 3500 Classic, plus 2006 GMC Sierra 3500. The Sealed Power 2783PNR part number is also referenced by 7210D, 2243709, 97374385, and MAHLE S224-3708.

Key Features

• Premium-grade engine piston for diesel engine service
• Cast aluminum piston material for rebuild applications
• Bowl piston head design
• 103.00 mm cylinder bore diameter
• 49.80 mm compression height
• 34.50 mm piston pin outside diameter
• Ring groove thicknesses: 3.00 mm top compression, 2.00 mm second compression, 3.00 mm oil ring
• Oversized: No

Detailed Description

Sealed Power 2783PNR is an engine piston engineered for precise fitment in compatible Chevrolet Express, Silverado, GMC Savana, and Sierra diesel engine builds. The bowl head profile, cast aluminum construction, and listed ring groove dimensions support accurate cylinder sealing and combustion chamber geometry during engine repair or overhaul. If you are sourcing a replacement piston for a Chevrolet Silverado 2500 HD, GMC Sierra 3500 HD, or related heavy-duty truck application, this part number provides a direct reference point for rebuild planning.

What This Piston Helps Address

• Worn or damaged piston crowns during engine rebuilds
• Loss of compression from piston and ring wear
• Excessive oil consumption related to piston/ring condition
• Restoration of correct combustion chamber geometry
• Repair needs in high-mileage Chevrolet and GMC diesel engines

Installation Notes and Tips

Verify cylinder bore diameter, compression height, and piston pin diameter before assembly. Match the piston to the correct ring set and inspect cylinder walls, connecting rods, and related engine components during installation. Confirm vehicle application by year, make, and model before ordering, especially for Chevrolet Silverado 2500 HD, GMC Sierra 2500 HD, and Express or Savana diesel platforms.

Quality Assurance

Sealed Power uses modern materials and ISO- and QS-certified manufacturing processes to produce engine components for demanding engine service. This focus on controlled manufacturing supports consistent part quality for rebuild work.