Sealed Power Speed Pro R977145 Piston Ring Set

Sealed Power Speed Pro piston rings are designed for engines with a 4.040-inch bore. Part number R977145 is a file-fit ring set with 1/16-inch, 1/16-inch, and 3/16-inch ring thicknesses.

This 8-cylinder piston ring kit features ductile iron construction with a plasma moly facing. The standard-tension design supports consistent ring function in applications requiring the specified configuration.

File-fit rings allow the end gap to be set during installation according to the engine builder’s requirements. Verify bore size, ring thickness, tension, and application specifications before installation.

Features:

• Brand: Sealed Power Speed Pro
• Part Number: R977145
• Bore Size: 4.040 inches
• Ring Type: File fit
• Ring Thickness: 1/16 inch, 1/16 inch, and 3/16 inch
• Material: Ductile iron
• Facing: Plasma moly
• Tension: Standard
• Application: 8-cylinder engine
• Product Type: Piston ring set