Pistons & Piston Rings

Piston Rings, Iron, 4.310 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SUM-135-2M551960

5.0 out of 5 stars ( 1 )

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Piston Rings, Moly, 4.172 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-E-261K40

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Piston Rings, Plasma-moly, 4.390 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: MAH-40843CP030

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Piston Rings, Plasma-moly, 4.375 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR9190-125

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Piston Rings, Plasma-moly, 4.420 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR2690-65

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Piston Rings, Moly, 3.910 in. Bore, 5/64 in., 5/64 in., 5/32 in. Thickness, 8-Cylinder, Set

Part Number: SLP-E-642K

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

Part Number: TSR-CR0690

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Piston Rings, Plasma-moly, 4.065 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR3690-65

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Piston Rings, Performance Series, 4.320 in. Bore, File Fit, 1/16 in., 1/16 in., 3/16 in., 8-Cylinder, Set

Part Number: MLE-4325MS

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Piston, 3.937 in. Bore, 2618 Forged Aluminum, ArmorGlide Skirt Coating, with Pin and Spirolox, Sea-Doo, Kit

Part Number: WIS-40270M10000

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Piston Rings, Moly, 4.195 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-E-302K30

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Piston Rings, Performance Series, 4.185 in. Bore, File Fit, 0.043 in., 0.043 in., 3.0mm, 8-Cylinder, Set

Part Number: MLE-4190ML-043

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Piston Rings, Plasma Moly Steel Top, Ductile Napier Second, Standard Tension Oil, File fit for 4.500 in. Bore, 1.5mm, 1.5mm, 3.0mm, Set

Part Number: SUM-85454500

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Piston Rings, Plasma-moly, 4.250 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-R9904

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Piston Rings, Premium Piston Ring Sets, Plasma-moly, 3.920 in. Bore, 1.2mm, 1.2mm, 2.0mm Thickness, V8, Set

Part Number: MAH-42108CP

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Pistons, Hypereutectic, Dish, 4.155 in. Bore, Wrist Pins and Pin Lock Rings, Chevy, Set of 8

Part Number: SLP-H615CP30

4.5 out of 5 stars ( 2 )

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Piston Rings, Pro GPX Gas Ported, 4.500 in. Bore, File Fit, Gas Nitrided, 0.043 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP450046

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Pistons, Hypereutectic, 4.392 in. Bore, Flat, 1.752 in. CH, Press Fit Pin, 5/64 x 5/64 x 3/16 Rg Grooves, Ford, Lincoln, Mercury, Mercruiser, Set of 8

Part Number: UEM-3191HC-030

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Piston Rings, Plasma-Moly, Standard Gap, 4.280 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SLP-R990430

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Piston Rings, Performance Series, 3.776 in. Bore, Plus 0.005 in., File Fit, 1.0mm, 1.0mm, 2.0mm, 8-Cylinder, Set

Part Number: MLE-3781MS-112

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Estimated Ship Date: Feb 20, 2026 if ordered today

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Piston Rings, Pro GPX Gas Ported, 4.070 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP407015

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Piston Rings, Plasma-moly, 4.250 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: MAH-40203CP

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Piston Rings, Performance Series, 4.010 in. Bore, Plus 0.005 in., File Fit, 1.0mm, 1.0mm, 2.0mm, 8-Cylinder, Set

Part Number: MLE-4015MS-112

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Piston Rings, Moly, 4.134 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-E-232K40

5.0 out of 5 stars ( 5 )

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Piston Rings, Gas Nitride Steel Top, Ductile second, Std. Tension oil, File Fit for 4.155 in. bore 1.2mm, 1.2mm, 3.0mm, Set

Part Number: SUM-136SN9050030

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