Sealed Power E-978K Engine Piston Ring Set

Overview of Sealed Power Engine Piston Ring Set E-978K

The Sealed Power Engine Piston Ring Set E-978K is designed for reliable performance in Ford and Mercury vehicles, including Explorer, Mustang, Ranger, and Mountaineer models. This set features precision-engineered components to maintain optimal engine compression and oil control.

• Standard size piston ring set with 100.40 mm bore diameter
• Top ring made of steel with chrome coating and barrel face design
• Second ring constructed from grey iron with phosphate coating and reverse torsional face
• Oil ring features a 3-piece flex vent design with 3.00 mm width
• Includes rings for 6-cylinder engines

Technical Specifications and Features

The E-978K piston ring set is engineered to meet OEM specifications for Ford and Mercury 6-cylinder engines with a bore size of 100.40 mm. The top ring’s steel construction with chrome plating and barrel face design ensures durability and effective sealing under high temperatures and pressures. The second ring uses grey iron with a phosphate coating to reduce wear and improve ring seating, featuring a reverse torsional face to enhance ring stability and reduce blow-by. The oil ring is a 3-piece flex vent design, 3.00 mm wide, optimized for efficient oil control and reduced oil consumption. The ring widths are precisely matched to groove widths of 1.2 mm (top), 1.5 mm (second), and 3.0 mm (oil ring) to ensure proper fit and function.

Compatible Vehicles and Applications

This piston ring set is compatible with a range of Ford and Mercury vehicles equipped with 6-cylinder engines, including:

• Ford Explorer, Explorer Sport, Explorer Sport Trac
• Mercury Mountaineer
• Ford Mustang (6-cylinder models)
• Ford Ranger (6-cylinder models)

It is designed for standard bore size engines requiring a 100.40 mm piston ring set, part number E-978K.

Common Engine Issues Addressed

• Reduced engine compression due to worn or damaged piston rings
• Excessive oil consumption caused by ineffective oil ring sealing
• Increased blow-by and loss of power from poor ring face design
• Engine smoking related to oil control ring failure
• Uneven wear and ring sticking from improper ring materials or coatings

Installation Notes and Tips

• Ensure cylinder bore is clean and within specification before installation
• Check ring end gaps and adjust if necessary according to manufacturer guidelines
• Install rings carefully to avoid damage, aligning ring gaps as recommended
• Use proper ring compressors and tools to prevent ring distortion during installation
• Verify compatibility with engine model and bore size (100.40 mm) before installation

Quality Assurance and Warranty

Sealed Power piston rings are manufactured to meet strict quality standards for durability and performance. The E-978K set is made from high-grade materials including steel with chrome plating and grey iron with phosphate coating to ensure long service life. While specific warranty details may vary, Sealed Power products typically come with a limited warranty against manufacturing defects. Always consult product documentation or authorized sources for warranty terms.