Mahle Original Plasma-Moly Steel Piston Ring Sets

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Mahle Original plasma-moly steel piston ring sets provide the ultimate in tensile strength, hardness, and fatigue resistance. The top rings are manufactured from SAE 9254 steel combined with proprietary plasma face coating to extend life, eliminate ring breakage, reduce side wear and minimize groove pound out problems. Ring sets with low and ultra-low tension oil rings are not recommend for street use and should utilize a vacuum pump for maximize performance.

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