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Diamond Racing Products 019011900
Oil Ring Groove Support Rail - 3.900-3.939 Diameter, .030 Thickness, .158 Radial; 3.900-3.939 Diameter - .030 Thickness - .158 Radial
Diamond Racing Products 09214170
Pro-Select Ring Set 4.170 Bore x 0.043 AP x .043 NAP x 3.0mm HT, Set of 8; 4.170 Bore - 0.043 AP - .043 NAP - 3.0mm HT - Cylinder Quantity: 6
Diamond Racing Products 09894560
Diamond Racing Products Pro-Select Ringset 4.560 Bore x 1/16 AP Gas Ported x 1/16 NAP x 3/16 Std x Cylinder Qty 8.