Sealed Power E-973KC Engine Piston Ring Set

Sealed Power E-973KC Piston Ring Set

Sealed Power E-973KC is a standard-size engine piston ring set built for 87.50 mm bores with a 1.2 mm / 1.2 mm / 2.5 mm groove width layout. It uses a steel top ring with chrome facing, a grey iron second ring with phosphate coating, and a 3-piece flex vent oil ring for precise cylinder sealing in modern Ford and Lincoln engines.

Key Features

• 87.50 mm bore diameter and outside diameter for standard-size applications
• Top ring material: steel with chrome face for wear resistance
• Second ring material: grey iron with phosphate coating and reverse torsional face design
• Oil ring design: 3-piece flex vent for oil control
• Ring groove widths: 1.2 mm top, 1.2 mm second, 2.5 mm oil
• Barrel-face top ring profile for improved cylinder wall contact
• File fit: No

Detailed Description

This Sealed Power piston ring set is engineered for engines that require an 87.50 mm standard bore and a 1.2 x 1.2 x 2.5 mm ring package. The chrome steel top ring and phosphate-coated grey iron second ring are selected to support sealing, heat transfer, and oil control under everyday driving and higher-load operation. Sealed Power uses modern materials and ISO/QS-certified manufacturing practices to produce engine components that meet demanding service requirements. This part number, E-973KC, is listed for a wide range of Ford, Lincoln, and Mercury applications, including Ford Focus, Ford Fusion, Ford Escape, Ford Explorer, and Lincoln MKZ models with matching engine specifications.

This part cross-references Sealed Power E-973KC for the same application.

Common Problems This Part Can Address

• Excessive oil consumption from worn piston rings
• Low compression caused by ring wear or loss of sealing
• Blow-by and crankcase pressure buildup
• Oil control issues that can lead to fouled spark plugs
• Reduced cylinder sealing after engine wear or rebuild work

Installation Notes and Tips

Verify bore size, ring groove widths, and piston specifications before installation. This set is not file fit, so ring end gaps should be checked against the engine builder’s service specifications during assembly. Clean ring grooves thoroughly, inspect cylinder walls for taper or scoring, and confirm that the top ring, second ring, and oil ring are installed in the correct orientation. Fits 2003-2018 Ford Focus, N/A. Fits 2006-2009 Ford Fusion, N/A. Fits 2013-2019 Lincoln MKZ, N/A. Fits 2012-2015 Ford Explorer, N/A. Fits 2005-2008 Mercury Mariner, N/A.

Quality Assurance

Sealed Power manufactures engine components using leading-edge materials and certified production processes to support consistent fit and performance. E-973KC is a standard-size piston ring set built to match the listed bore and groove dimensions for the confirmed applications.