Pistons, Rings, Wrist Pins, Bushings & More

Piston Rings, Pro GPX Gas Ported, 4.375 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP437516

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/8/2025

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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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Estimated Ship Date: Monday 12/8/2025

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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

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Estimated Ship Date: Monday 12/8/2025

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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

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/8/2025

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Piston Rings, Iron, 4.290 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SUM-135-2M551940

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Piston Rings, Pro GPX Gas Ported, 4.440 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP444016

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Piston Rings, Pro GPX Gas Ported, 4.310 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP431015

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Estimated Ship Date: Monday 12/8/2025

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

Part Number: SUM-17303C-20

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 12/8/2025

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Piston Rings, Pro GPX Gas Ported, 4.040 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP404012

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Estimated Ship Date: Monday 12/8/2025

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Piston Wrist Pins, H-13 Tool Steel, 0.927 in. Diameter, 2.250 in. Length, 0.215 in. Wall Thickness, 135 grams, Each

Part Number: SUM-S719

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 12/8/2025

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

Part Number: TSR-CR369030

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Monday 12/8/2025

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Piston Rings, Pro GPX Gas Ported, 4.040 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set

Part Number: SUM-GP404010

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Estimated Ship Date: Monday 12/8/2025

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Piston Rings, Pro GPX Gas Ported, 4.080 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP408012

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Estimated Ship Date: Monday 12/8/2025

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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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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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Estimated Ship Date: Monday 12/8/2025

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Pro GPX 86mm/3.386 Gas Ported Rings, Forged Sport Compact pistons, File Fit, Gas Nitrided, 1.0mm, 1.2mm, 2.8mm Thickness, Single Piston Set,

Part Number: SUM-GP8600XX

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Estimated Ship Date: Monday 12/8/2025

Pro GPX 85.5mm/3.366 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-GP8550XX

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Estimated Ship Date: Monday 12/8/2025

Piston Rings, Moly, 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: DMS-RSMR100-4060

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/8/2025

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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Estimated Ship Date: Monday 12/8/2025

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Piston Rings, Pro GPX Gas Ported, 4.030 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3.0mm Thickness, V8, Set

Part Number: SUM-GP403013

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Estimated Ship Date: Monday 12/8/2025

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Piston Rings, Pro GPX Gas Ported, 4.000 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP400016

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Estimated Ship Date: Monday 12/8/2025

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Pro LS 2618 Forged Pistons. 3.810 bore, 1.326 C.H., 2cc dome, Std. Stroke, .945 pin Press or Float, NA/Boost/Nitrous, Coated, 4.8L 5.3L Vortec Truck

Part Number: SUM-326945810-2P

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 12/8/2025

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Piston Rings, Plasma-Moly, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SUM-134-CM553130

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 12/8/2025

Piston Rings, Pro GPX Gas Ported, 4.155 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set

Part Number: SUM-GP415543

Not Yet Reviewed

Estimated Ship Date: Monday 12/8/2025

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Pistons, Forged, Flat, 4.000 in. Bore, Ford, Set of 8

Part Number: SUM-17370FC-00

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 12/8/2025

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