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The Mahle OE moly top ring set is a plasma-steel piston top ring with an HVOF molybdenum finish sized for a 4.000 in bore, 1.0 mm thickness and .143 in ring width. Supplied in a 48-count bulk pack, this option is intended for shops and rebuilders who need multiple identical 4.000 in top rings with the HVOF moly surface treatment.
Mahle Rings Perf Plasma Steel Top Ring 4.000in x 1.0MM .143in RW HVOF Moly Ring Set (48 Qty Bulk Pk)
