Sealed Power E-987K Engine Piston Ring Set

Sealed Power E-987K Engine Piston Ring Set

Sealed Power E-987K is a standard-size engine piston ring set built for 103.00 mm bores and 1.5 x 1.5 x 3.0 mm ring grooves. It uses a steel top ring with moly, a grey iron second ring with phosphate coating, and a 3-piece flex vent oil ring design for modern V8 applications.

Key Features

• Standard-size piston ring set for 103.00 mm bore diameter
• Top ring material: steel with moly for wear resistance
• Second ring material: grey iron with phosphate coating
• Top ring face design: high tensil
• Second ring face design: reverse torsional
• Oil ring design: 3-piece flex vent
• Ring groove widths: 1.5 x 1.5 x 3.0 mm
• Fits 2005-2010 Chrysler 300, N/A
• Fits 2008-2010 Dodge Challenger, N/A
• Fits 2006-2010 Dodge Charger, N/A
• Fits 2006-2010 Jeep Grand Cherokee, N/A
• Fits 2006-2008 Dodge Magnum, N/A

Detailed Description

Built for 8-cylinder engines, the Sealed Power E-987K piston ring set is engineered around a 103.00 mm bore and standard groove dimensions to support proper sealing, oil control, and combustion efficiency. The steel moly top ring and reverse torsional second ring are selected for durability and consistent ring function in demanding street applications. This part cross-references 2m4907 and 42089cp for the same application. It is a direct fit for Chrysler 300, Dodge Challenger, Dodge Charger, Jeep Grand Cherokee, and Dodge Magnum applications listed below, making E-987K a practical choice for rebuilds that require correct bore and groove sizing.

What It Helps Address

• Excessive oil consumption from worn or stuck rings
• Low compression caused by poor cylinder sealing
• Blow-by and crankcase pressure buildup
• Smoke from worn piston ring sealing surfaces
• Loss of engine performance during rebuild or overhaul

Installation Notes and Tips

Verify bore diameter, ring groove width, and piston specifications before installation. Measure cylinder wear and confirm the 103.00 mm standard-size application matches the engine being rebuilt. Follow the engine builder’s ring end-gap procedure and installation sequence for the specific application. For fitment, this part fits 2005-2010 Chrysler 300, N/A; 2008-2010 Dodge Challenger, N/A; 2006-2010 Dodge Charger, N/A; 2006-2010 Jeep Grand Cherokee, N/A; and 2006-2008 Dodge Magnum, N/A.

Quality Assurance

Sealed Power states that its parts use innovative designs, advanced materials, and ISO- and QS-certified manufacturing processes to meet the demands of modern engines.