PEY511SC0 Mazda RING SET,PISTON, Price: 87.32$, Weight: 0.393kg
OE‑spec piston ring kit for Mazda Skyactiv‑G engines
Restore factory compression and oil control with a precision piston ring set. The top and second rings seal the combustion chamber , the oil ring scrapes excess lubricant, and all three maintain the cross‑hatch film for long life. Expect cleaner burns, steadier idle, and sharper throttle. Ideal for rebuilds or high‑mileage smokers ⛽.
Why you need it
Rings wear from heat, carbon, dusty intake air, and long oil intervals. When gaps grow, blow‑by steals torque, fuel washes cylinders, plugs foul, and the catalytic converter suffers. Fresh rings bring back tight sealing, protect the bore, and reduce oil use.
How it works
The top fire ring handles combustion pressure, the second controls gases, and the three‑piece oil control ring meters oil. Gas pressure forces rings outward to the honed wall, creating a dynamic seal, while return slots drain scraped oil to the sump ️.
What if it’s worn or broken
Symptoms include: - Blue smoke after idle or on throttle - Low compression, hard starts - High oil use, oily plugs - Rough idle, misfire codes Ignore it and expect glazing, scored bores, stuck rings, and damaged O2/catalyst. Timely replacement preserves powertrain health and emissions .
- Cx-3
- Cx-5