United Engine & Machine Parts and Accessories

Piston Ring Set 6cyl 3.961''/ 100.6 MM 1.2mm 1.5mm 2.5mm

Part Number: UEM-3921UN610MM

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Piston Ring Set 8cyl 3.790''/ 96.25 MM 5/64 5/64 3/16

Part Number: UEM-3750AM8040

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Piston Rings, 3.780 in. Bore, 1/16 in., 1/16 in., 3/16 in., Ductile Iron, Plasma-moly, 4-Cylinder, Set

Part Number: UEM-3780BD4-STD

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Piston Ring Set 8cyl 3.790''/ 96.25 MM 1.50mm 1.50mm 3.00mm File to Fit - Gas Ported Top Ring

Part Number: UEM-3780CPX8015

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Piston Ring Set 8cyl 3.79''/ 96.266 MM 1.50mm 1.50mm 3.00mm

Part Number: UEM-3780CS8010

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Ring Set

Part Number: UEM-3386TS625MM

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Piston Ring Set 6cyl 3.4055''/ 86.5 MM 1.20mm 1.20mm 2.80mm

Part Number: UEM-3386TS65MM

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Piston Ring Set 8cyl 4.565''/ 115.951 MM .043 .043 3.0mm

Part Number: UEM-115362

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Piston Ring Set 8cyl

Part Number: UEM-4500PP8010

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Piston Rings, 4.180 in. Bore, 5/64 in., 5/64 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4120AM8-060

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Piston Ring Set 8cyl 4.140''/ 105.16 MM 1/16 1/16 3/16 File to Fit

Part Number: UEM-4125BD8015

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Piston Rings, 4.181 in. Bore, 1/16 in., 1/16 in., 3/16 in., Ductile, Plasma-moly, File Fit, 8-Cylinder, Set

Part Number: UEM-4151BD8-035

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Piston Rings, 4.250 in. Bore, 5/64 in., 5/64 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4250AM8-STD

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Piston Ring Set 8cyl 4.085''/ 103.759 MM 1.50mm 1.50mm 3.00mm

Part Number: UEM-4055CS8030

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Piston Rings, 4.160 in. Bore, 5/64 in., 5/64 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4120AM8-040

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Piston Rings, 4.160 in. Bore, 1/16 in., 1/16 in., 3/16 in., Ductile, Plasma-moly, File Fit, 8-Cylinder, Set

Part Number: UEM-4120BD8-045

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Piston Rings, 4.120 in. Bore, 1/16 in., 1/16 in., 3/16 in., Ductile Iron, Plasma-moly, 8-Cylinder, Set

Part Number: UEM-4120BD8-STD

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Piston Rings, 4.125 in. Bore, 1/16 in., 1/16 in., 3/16 in., Ductile, Plasma-moly, File Fit, 8-Cylinder, Set

Part Number: UEM-4125BD8-005

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Piston Ring Set 8cyl 4.135''/ 105.029 MM 1/16 1/16 3/16

Part Number: UEM-4125BD8010

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Piston Ring Set 8cyl 4.280''/ 108.71 MM 2.0MM 2.0MM 4.0MM

Part Number: UEM-4250SM8030

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Piston Ring Set 8cyl 4.380''/ 111.25 MM 1/16 1/16 3/16 File to Fit

Part Number: UEM-4320BP8065

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Piston Ring Set 8cyl 4.38''/ 111.252 MM .043 1/16 3/16

Part Number: UEM-4350JSC8030

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Piston Ring Set 8cyl 4.075''/ 103.505 MM 1.50mm 1.50mm 3.00mm

Part Number: UEM-4055CS8020

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Piston Rings, 4.102 in. Bore, 5/64 in., 5/64 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4062AM8-040

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Wrist Pin, Lightweight, .927 in. Diameter, 2.250 in. Length, 88 Grams, Each

Part Number: UEM-R71

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