320-101 Seal Piston Rings

These piston rings from Total Seal Inc. address the complexities of sealing large-bore Harley-Davidson cylinders under severe conditions. The TSS series provides a moly-coated cast iron top ring for reliable street performance. For more demanding applications, the TS1 series uses a Moly Max plasma ductile iron top ring to resist detonation and extreme thermal stress. Every set includes the innovative Gap-less second ring, which uses a two-piece construction to block the end gap and reduce blow-by to negligible levels. This improved sealing often results in lower operating oil temperatures. This product is sold in sets for one single piston.