Sealed Power E-942K Engine Piston Ring Set

Sealed Power E-942K Piston Ring Set

Sealed Power E-942K is an engine piston ring set for 4.2500-inch bore applications with standard sizing and a 2.0 x 2.0 x 4.0 mm ring groove layout. It uses a steel top ring with moly face, a grey iron second ring with reverse torsional face design, and a 3-piece flex vent oil ring for consistent cylinder sealing in compatible V8 engines.

Key Features

• Part number E-942K for engine rebuild and overhaul work
• 4.2500 bore diameter with standard size configuration
• Top ring: steel with moly, 2.00 mm width, barrel face
• Second ring: grey iron, 2.00 mm width, reverse torsional face
• Oil ring: 3-piece flex vent design, 4.00 mm width
• Ring groove widths: 2.0 x 2.0 x 4.0 mm
• Fits 8-cylinder applications listed for Chevrolet Silverado 2500 HD, GMC Sierra 3500, and related models

Detailed Description

This Sealed Power piston ring set is built for engines that require a 4.2500-inch bore and standard ring sizing. The steel moly top ring helps support cylinder sealing, while the reverse torsional second ring and flex vent oil ring are specified for the groove widths and bore dimensions shown. Sealed Power uses modern materials and ISO- and QS-certified manufacturing practices to produce engine components for demanding service conditions. This part cross-references 41902CP for the same application.

Compatible With 2001-2006 Chevrolet Silverado 2500 HD, 2001-2006 Chevrolet Silverado 3500, 2001-2006 GMC Sierra 2500 HD, 2001-2006 GMC Sierra 3500, and 2007 Chevrolet Silverado 2500 HD Classic / Silverado 3500 Classic / GMC Sierra 2500 HD Classic / Sierra 3500 Classic applications listed in the fitment data. The E-942K part number is also relevant when searching for a 4.2500 bore piston ring set for Chevrolet Silverado and GMC Sierra V8 rebuilds.

What It Helps Address

• Low compression caused by worn or damaged piston rings
• Excessive oil consumption from worn oil control rings
• Blow-by and crankcase pressure from poor cylinder sealing
• Smoke from worn ring packs in high-mileage engines
• Loss of ring seal during engine rebuild or refresh work

Installation Notes and Tips

Verify bore diameter, ring groove widths, and standard-size requirements before installation. Confirm the cylinder count and match the ring face design to the engine specification. Check ring end gaps and cylinder wall condition during assembly, and follow the engine builder’s service procedures for ring orientation and break-in.

Quality Assurance

Sealed Power manufactures engine components using leading-edge materials and ISO- and QS-certified processes. The E-942K is built to meet the demands of modern engine service and rebuild applications.