Pistons, Rings, Wrist Pins, Bushings & More

Pro GPX 84mm/3.307 Gas Ported Rings, Forged Honda B series pistons, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set,

Part Number: SUM-GP8400XX

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Estimated Ship Date: Monday 1/5/2026

Piston Rings, Pro GPX Gas Ported, 4.010 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set

Part Number: SUM-GP401010

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Estimated Ship Date: Monday 1/5/2026

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Pro GPX 99.5mm/3.917 Gas Ported Rings, Aftermarket forged pistons, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set

Part Number: SUM-GP9950XX

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Estimated Ship Date: Monday 1/5/2026

Piston Rings, Pro GPX Gas Ported, 4.200 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP420016

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Estimated Ship Date: Monday 1/5/2026

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Piston Rings, Pro GPX Gas Ported, 4.055 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP405512

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Estimated Ship Date: Monday 1/5/2026

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Piston Rings, Pro GPX Gas Ported, 4.035 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP403516

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Estimated Ship Date: Monday 1/5/2026

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Piston Rings, Pro GPX Gas Ported, 4.135 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP413515

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Estimated Ship Date: Monday 1/5/2026

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Oil Ring Support Rails, 4.125 in-4.185 in. Bore, 3.mm, Each

Part Number: MLE-9290032

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Estimated Ship Date: Monday 1/5/2026

Pro GPX 89mm/3.504 Gas Ported Rings, Forged Sport Compact pistons,File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set,

Part Number: SUM-GP8900XX

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Estimated Ship Date: Monday 1/5/2026

Piston Rings, Pro GPX Gas Ported, 4.165 in. Bore, File Fit, Plasma-moly, 5/64 in., 5/64 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP416564

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Estimated Ship Date: Feb 25, 2026 if ordered today

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Wrist Pin Retainer, Wire Locks, 0.866 in. Diameter, 0.049 in. Thick, Steel, Pair

Part Number: WIS-CW22

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Estimated Ship Date: Monday 1/5/2026

Piston Oil Ring Spacer, Support Rail, 4.020 in.-4.035 in. Bore, 2mm Thick, Each

Part Number: MLE-1979645

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Estimated Ship Date: Monday 1/5/2026

Piston Wrist Pin Retainers, Lock Rings, Wire Lock Type, Clip Has No Tang, Steel, 0.866 in. Pin Diameter, Each

Part Number: MLE-2042968

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Estimated Ship Date: Monday 1/5/2026

Wrist Pin Lock Ring, C-clip Type, Steel, 0.063 in. Thick, 1.100 in. O.D., 0.927 in. Pin Diameter, Each

Part Number: MLE-6436901

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Estimated Ship Date: Monday 1/5/2026

Wrist Pin Lock Ring, Wire Lock with Tang, Steel, 0.944 in./24mm Pin Diameter, 0.062 in. Thick, Each

Part Number: MLE-6442412

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Estimated Ship Date: Monday 1/5/2026

Piston Rings, Pro GPX Gas Ported, 4.500 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set

Part Number: SUM-GP450043

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Estimated Ship Date: Monday 1/5/2026

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Piston Rings, Pro GPX Gas Ported, 75.5mm/2.972 in. Bore, Honda D Series Forged, File Fit, Gas Nitride, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston

Part Number: SUM-GP7550XX

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Estimated Ship Date: Monday 1/5/2026

Piston Rings, Pro GPX Gas Ported, 76mm/2.992 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set

Part Number: SUM-GP7600XX

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Estimated Ship Date: Monday 1/5/2026

Pro GPX 87.5mm/3.445 Gas Ported Rings, Forged Sport Compact pistons, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set,

Part Number: SUM-GP8750XX

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Estimated Ship Date: Monday 1/5/2026

Piston Rings, Pro GPX Gas Ported, 4.155 in. Bore, File Fit, Plasma-moly, 5/64 in., 5/64 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP415564

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Estimated Ship Date: Monday 1/5/2026

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Piston Rings, Pro GPX Gas Ported, 4.280 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set

Part Number: SUM-GP428043

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Estimated Ship Date: Monday 1/5/2026

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Piston Rings, Pro GPX Gas Ported, 3.780 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set

Part Number: SUM-GP378010

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Estimated Ship Date: Monday 1/5/2026

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Piston Rings, Pro GPX Gas Ported, 3.780 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP378016

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Estimated Ship Date: Monday 1/5/2026

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Piston Rings, Pro GPX Gas Ported, 3.820 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP382015

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Estimated Ship Date: Monday 1/5/2026

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Piston Rings, Pro GPX Gas Ported, 4.390 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP439016

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Estimated Ship Date: Monday 1/5/2026

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