Summit Racing Pistons & Piston Rings

Pro GPX 88.5mm/3.484 Gas Ported Rings, Forged Sport Compact pistons, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set

Part Number: SUM-GP8850XX

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Estimated Ship Date: Dec 30, 2025 if ordered today

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Pro GPX 90mm/3.543 Gas Ported Rings, Forged Sport Compact pistons, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set

Part Number: SUM-GP9000XX

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Estimated Ship Date: Dec 30, 2025 if ordered today

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Pro GPX 90.75mm/3.573 Gas Ported Rings, Forged Sport Compact pistons, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set

Part Number: SUM-GP9075XX

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Estimated Ship Date: Dec 30, 2025 if ordered today

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Pro GPX 91.5mm/3.602 Gas Ported Rings, Forged Sport Compact pistons, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set

Part Number: SUM-GP9150XX

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Estimated Ship Date: Dec 30, 2025 if ordered today

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Pro GPX 92.2mm/3.630 Gas Ported Rings, Aftermarket forged pistons, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set

Part Number: SUM-GP9220XX

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Estimated Ship Date: Dec 30, 2025 if ordered today

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Pro GPX 92.25mm/3.632 Gas Ported Rings, Subaru forged pistons, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness,Tabbed Oil Ring, Single Piston Set

Part Number: SUM-GP9225SU

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Estimated Ship Date: Dec 30, 2025 if ordered today

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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

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Piston Rings, Pro GPX Gas Ported, 4.130 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP413015

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Piston Rings, Pro GPX Gas Ported, 4.040 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 2.5mm Thickness, V8, Set

Part Number: SUM-GP404025

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Piston Rings, Pro GPX Gas Ported, 4.040 in. Bore, File Fit, Gas Nitrided, 0.043 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP404046

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Piston Rings, Pro GPX Gas Ported, 4.045 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP404516

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Piston Rings, Pro GPX Gas Ported, 4.055 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set

Part Number: SUM-GP405510

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Piston Rings, Pro GPX Gas Ported, 3.903 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3.0mm Thickness, V8, Set

Part Number: SUM-GP390313

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Piston Rings, Pro GPX Gas Ported, 3.937 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.5mm Thickness, Single Piston Set,

Part Number: SUM-GP100S25

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Estimated Ship Date: Dec 30, 2025 if ordered today

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Piston Rings, Pro GPX Gas Ported, 3.937 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.5mm Thickness, Tabbed Oil Ring, Single Piston Set,

Part Number: SUM-GP100SUB

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Estimated Ship Date: Dec 30, 2025 if ordered today

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Piston Rings, Pro GPX Gas Ported, 3.552 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, Single Piston Set,

Part Number: SUM-GP355210

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Estimated Ship Date: Dec 30, 2025 if ordered today

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Piston Rings, Pro GPX Gas Ported, 3.907 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP390715

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Piston Rings, Pro GPX Gas Ported, 3.572 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, Single Piston Set,

Part Number: SUM-GP357210

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Piston Rings, Pro GPX Gas Ported, 3.915 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP391516

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Piston Rings, Pro GPX Gas Ported, 3.917 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, Tabbed Oil Ring, Single Piston Set, L4, Set

Part Number: SUM-GP391710

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Piston Rings, Pro GPX Gas Ported, 3.927 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, Single Piston Set, L4, Set

Part Number: SUM-GP392710

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Piston Rings, Pro GPX Gas Ported, 3.935 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP393516

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Piston Rings, Pro GPX Gas Ported, 3.667 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP366712

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Piston Rings, Pro GPX Gas Ported, 3.672 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP367212

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Piston Rings, Pro GPX Gas Ported, 3.677 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP367712

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