Availability
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Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier Second, Std. Tension Oil, File Fit for 4.030 in. Bore, 1.2mm, 1.2mm, 3.0mm, Set
Part Number: SUM-136SN9045035
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
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Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier Second, Std. Tension Oil, File Fit for 4.000 in. Bore, 1.2mm, 1.2mm, 3.0mm, Set
Part Number: SUM-136SN9045005
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Plasma Moly Steel Top, Martensitic Ductile Napier Second, Std. Tension Oil, File Fit for 3.780 in. Bore, 1.5mm, 1.5mm, 3.0mm, Set
Part Number: SUM-136SM8531005
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier second, Std. Tension oil, File fit for 4.070 in. bore, 1.2mm, 1.2mm, 3.0mm, Set
Part Number: SUM-136SN9045070
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier second, Std. Tension oil, File fit for 4.075 in. bore, 1.2mm, 1.2mm, 3.0mm, Set
Part Number: SUM-136SN9045075
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier Second, Std. Tension Oil, File Fit for 4.005 in. Bore, 1.2mm, 1.2mm, 3.0mm, Set
Part Number: SUM-136SN9045010
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Pro GPX Gas Ported, 4.030 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set
Part Number: SUM-GP403012
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Pro GPX Gas Ported, 4.500 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set
Part Number: SUM-GP450016
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Pro GPX Gas Ported, 4.280 in. Bore, File Fit, Plasma-moly, 5/64 in., 5/64 in., 3/16 in. Thickness, V8, Set
Part Number: SUM-GP428064
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Pro GPX Gas Ported, 4.000 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set
Part Number: SUM-GP400012
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Pro GPX Gas Ported, 4.065 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set
Part Number: SUM-GP406515
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Pro GPX Gas Ported, 4.610 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set
Part Number: SUM-GP461043
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Pro GPX Gas Ported, 4.000 in. Bore, File Fit, Plasma-moly, 5/64 in., 5/64 in., 3/16 in. Thickness, V8, Set
Part Number: SUM-GP400064
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Pro GPX Gas Ported, 4.560 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set
Part Number: SUM-GP456016
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Pro GPX Gas Ported, 4.000 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set
Part Number: SUM-GP400015
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Pro GPX Gas Ported, 4.165 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set
Part Number: SUM-GP416543
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Plasma-moly, 4.040 in. Bore, 1/16 in. 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set
Part Number: JEP-S100S8-40405
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Pro GPX Gas Ported, 4.625 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set
Part Number: SUM-GP462543
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Pro HEMI, 4.085 in. bore, File-fit 1.2mm Nitride Steel Top, 1.2mm Ductile Second, 3.0mm Std. Tension Oil, 8 Cylinders, Set
Part Number: SUM-408512
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Pro GPX Gas Ported, 4.155 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set
Part Number: SUM-GP415512
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Plasma Moly Steel Top, Martensitic Ductile Napier Second, Std. Tension Oil, File Fit for 3.810 in. Bore, 1.5mm, 1.5mm, 3.0mm, Set
Part Number: SUM-136SM8531035
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Pro GPX Gas Ported, 4.090 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set
Part Number: SUM-GP409010
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Pro GPX Gas Ported, 4.125 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set
Part Number: SUM-GP412543
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Pro GPX Gas Ported, 4.600 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3/16 in. Thickness, V8, Set
Part Number: SUM-GP4600446
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Piston Rings, Pro GPX Gas Ported, 4.130 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set
Part Number: SUM-GP413010
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
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