Pistons & Piston Rings

Piston Rings, Plasma-moly, 4.030 in. Bore, File Fit, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR3690-35

5.0 out of 5 stars ( 1 )

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Piston Rings, Pro GPX Gas Ported, 3.572 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP357215

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Piston Rings, Pro GPX Gas Ported, 4.500 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP450015

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Pistons, Hypereutectic, Dome, 4.040 in. Bore, Chevy, Set of 8

Part Number: SLP-H618CP40

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Pistons, Hypereutectic, Flat, 4.020 in. Bore, Ford, Mercury, Set of 8

Part Number: SLP-H336CP20

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 24, 2025 if ordered today

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Pistons, Cast, Flat, 4.150 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Pontiac, V8, Set of 8

Part Number: UEM-1526-030

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Piston Rings, Plasma-Moly, 4.165 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SUM-134-CM553440

3.5 out of 5 stars ( 2 )

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Piston Rings, Performance Series, 4.040 in. Bore, File Fit, 0.043 in., 0.043 in., 3.0mm, 8-Cylinder, Set

Part Number: MLE-4045ML-043

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Piston Rings, Premium Ductile Ring Sets, 0.040 in. Oversize, 4.165 in. Bore, Plasma-moly, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set of 8

Part Number: HSN-2M5529040

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Piston Rings, Pro GPX Gas Ported, 3.810 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP381015

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Piston Rings, Pro GPX Gas Ported, 4.625 in. Bore, File Fit, Gas Nitrided, 0.043 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP462546

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Piston Rings, Moly, 4.280 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-E-553K30

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Piston Rings, Plasma-moly, 4.060 in. Bore, 1/16 in., 1/16 in., 1/8 in. Thickness, 8-Cylinder, Set

Part Number: SLP-R996860

4.5 out of 5 stars ( 2 )

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Piston Rings, Plasma-moly, 4.350 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR6490-30

3.5 out of 5 stars ( 2 )

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Piston Rings, Premium Ductile Ring Sets, Plasma-moly, 4.155 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, L8, V8, W8, Set

Part Number: HSN-2M5529030

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Pistons, Hypereutectic, Dish, 4.030 in. Bore, Chevy, GMC, Oldsmobile, Pontiac, 4.3L, Set of 6

Part Number: SLP-H640DCP30

5.0 out of 5 stars ( 2 )

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Pistons, Cast, Dish, 4.080 in. Bore, Ford/Mercury, 410, Set of 8

Part Number: SLP-381NP30

5.0 out of 5 stars ( 2 )

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Piston Rings, Pro GPX Gas Ported, 4.400 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP440016

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

Part Number: SUM-GP4500446

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Piston Rings, Stainless Steel Series Performance, Gas Nitrided, 4.070 in. Bore, 1.2mm, 1.2mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: HSN-SN9045070

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Piston Rings, Plasma-moly, 4.280 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR9190-30

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 20, 2025 if ordered today

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Piston Rings, Plasma-moly, 4.060 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR3690-60

4.5 out of 5 stars ( 4 )

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Piston Rings, Plasma-moly, 4.320 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR6490

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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, Pro HEMI, 4.090 in. bore, File-fit 1.2mm Nitride Steel Top, 1.2mm Ductile Second, 3.0mm Std. Tension Oil, 8 Cylinders, Set

Part Number: SUM-409012

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