Sealed Power E-996K Engine Piston Ring Set

Sealed Power E-996K Piston Ring Set

Sealed Power E-996K is a standard-size engine piston ring set built for 103.00 mm bore applications with a 3.0 x 2.0 x 3.0 mm groove width layout. It uses a keystone top ring face, reverse torsional second ring face, and a 2-piece conformatic oil ring design for precise cylinder sealing in compatible V8 engines.

Compatible With 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 that call for this 103 mm standard-size ring set. The E-996K part number is also referenced in OE-style replacement listings for the same application.

Key Features

• Standard-size piston ring set for 103.00 mm bore diameter
• Top ring face design: keystone
• Second ring face design: reverse torsional
• Oil ring design: 2-piece conformatic
• Ring groove widths: 3.0 x 2.0 x 3.0 mm
• File fit: no
• Designed for 8-cylinder engine applications

Detailed Description

Sealed Power E-996K is engineered for engine rebuilds and cylinder service where the original bore size remains standard. The ring package is specified with a 103.00 mm outside diameter and bore diameter, along with a 3.00 mm top ring, 2.00 mm second ring, and 3.00 mm oil ring to match the listed groove widths. The keystone top ring and reverse torsional second ring are used to support consistent ring seating and cylinder wall control in the specified Chevrolet and GMC truck and van applications, including Silverado 2500 HD, Sierra 2500 HD, Express 3500, and Savana 3500 models.

Sealed Power states that its components are produced with modern materials and ISO- and QS-certified manufacturing processes to meet demanding engine requirements. This part cross-references MAHLE 41909 and 97386951 for the same application.

What It Helps Address

• Compression loss from worn or fatigued piston rings
• Oil control issues caused by ring wear or poor cylinder sealing
• Excessive blow-by in high-mileage V8 engines
• Reduced cylinder sealing after an engine rebuild
• Ring fitment concerns when the engine requires a standard 103 mm bore set

Installation Notes and Tips

Verify bore diameter, groove widths, and ring face design before installation. This set is not file fit, so ring end gaps should be checked against the engine builder’s specifications rather than altered by filing. Confirm that the engine remains at standard bore and that the piston groove dimensions match 3.0 x 2.0 x 3.0 mm requirements. For best results, follow the service manual procedures for ring orientation, cylinder preparation, and break-in.

Quality Assurance

Sealed Power uses leading-edge materials and ISO- and QS-certified manufacturing practices to produce engine components for modern applications. The E-996K is built to the listed dimensional specifications for direct application matching in compatible Chevrolet and GMC engines.