Sealed Power E377X Economy Cast Piston Ring Set

The Sealed Power E377X Cast Piston Ring Set is an economy replacement ring kit designed for engines with a 4.000-inch bore. This drop-in set features standard-tension cast iron piston rings with a phosphate finish.

The ring configuration includes 5/64-inch compression rings and a 3/16-inch oil ring. The kit is specified for 8-cylinder applications and provides a practical replacement option for engine rebuilding and repair projects.

Built to the stated Sealed Power specifications, the E377X piston ring set combines a drop-in design with standard tension and cast iron construction. Verify engine bore size, cylinder count, and ring requirements before installation.

Features:

• Brand: Sealed Power
• Part Number: E377X
• Product Type: Cast piston ring set
• Bore Size: 4.000 inches
• Ring Design: Drop-in
• Ring Thickness: 5/64 x 5/64 x 3/16 inches
• Tension: Standard
• Material: Cast iron
• Finish: Phosphate
• Application: 8-cylinder engines
• Set Type: Economy kit