Piston Rings, Standard Piston Ring Sets, Cast Iron, 4.020 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, V8, Set 50564.020

Bore (in.):

4.020 in.

Bore (mm):

102.108mm

File Fit:

No

Gapless:

No

Gas Ported:

No

Top Ring Included:

Yes

Top Ring Thickness:

5/64 in.

Top Ring Material:

Cast iron

Top Ring Facing Material:

Cast iron

Second Ring Included:

Yes

Second Ring Thickness:

5/64 in.

Second Ring Material:

Cast iron

Second Ring Facing Material:

Iron

Oil Ring Included:

Yes

Oil Ring Thickness:

3/16 in.

Oil Ring Tension:

Standard

Oil Ring Material:

CP-20

Quantity:

Sold as 8 sets.

Mahle Original Standard Piston Ring Sets

Mahle is the world's largest manufacturer of piston rings. Their tremendous research and development and extensive OE connections mean that Mahle Original standard piston ring sets have the technological edge. Things like narrow compression rings, steel compression rings for gasoline engines, low-tension oil rings, and coated compression rings for diesels all came from OE. Mahle's entire Original line proves time and again that it should be the ring of choice under every hood - regardless of the application.

Mahle Original standard piston rings offer high tensile strength, high yield strength, and excellent hardness with low ring mass. These factors lead to stress resistance, minimal groove pound-out, long service life, cylinder conformability, oil economy, and good blow-by control with low friction. Whether you're repairing a modern computer-controlled engine, or rebuilding an older engine, be sure to specify Mahle Original standard piston ring sets (formerly Perfect Circle) trusted by professional automotive technicians for over 100 years.