MAHLE Engine Piston P/N:S224-2897

Transfer combustion pressure to the crankshaft with the MAHLE Engine Piston S224-2897. The piston reciprocates inside the cylinder bore, sealing the combustion chamber with its ring package and carrying the force of each power stroke down through the connecting rod to the crankshaft. It installs as a direct-fit replacement for the listed applications, including the 1994-2001 AM General Hummer, 1994-1998 Chevrolet C1500, 1992-2000 Chevrolet C2500, 1996-2002 Chevrolet Express 2500, 1995-1999 Chevrolet Tahoe, 1996-2002 GMC Savana 3500, and 2002-2004 Hummer H1 — see the Buyer's Guide tab for the full list of 35 applications.

• Core job: forms the moving lower boundary of the combustion chamber and passes combustion force to the rod and crank.
• Ring interface: carries the piston rings that seal cylinder pressure and control oil on the bore wall.
• Per-engine quantity: an engine uses one piston per cylinder — order the quantity your application requires.

Signs a piston may need replacing include scuffed or scored skirts, cracked ring lands, excessive piston-to-bore noise (slap), or oil consumption traced to a damaged piston. Diagnose the underlying cause before replacing, since these symptoms can have other sources.

Interchange: 10183937 · 10236523 · 12550059 · 12550061. Manufacturer part number S224-2897 (also S2242897).