Pistons, Rings, Wrist Pins, Bushings & More

Piston Rings, Pro GPX Gas Ported, 4.125 in. Bore, File Fit, Plasma-moly, 5/64 in., 5/64 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP412564

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 4.000 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set

Part Number: SUM-GP400010

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

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

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

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

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

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

Not Yet Reviewed

Estimated Ship Date: Today

Piston Rings, Pro GPX Gas Ported, 4.060 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3.0mm Thickness, V8, Set

Part Number: SUM-GP406013

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

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

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 3.635 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP363512

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Piston Wrist Pin Retainers, Lock Rings, C-clip Type, Steel, 0.912 in. Pin Diameter, Each

Part Number: MLE-6458129

Not Yet Reviewed

Estimated Ship Date: Today

Piston Rings, Pro GPX Gas Ported, 3.796 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set

Part Number: SUM-GP379610

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Piston Wrist Pin Retainers, Retaining Clips, Wire Lock Type, Steel, 0.039 in. Thickness, 0.551 in. Wrist Pin Diameter, for use on Honda®, KTM, Pair

Part Number: WIS-CW14

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

• Drop Ship
• Special Order

Piston Oil Ring Spacer, Support Rail, 3.898 in.-3.947 in. Bore, 2mm Thick, Each

Part Number: MLE-9301947

Not Yet Reviewed

Estimated Ship Date: Today

Piston Rings, Pro GPX Gas Ported, 3.903 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set

Part Number: SUM-GP390510

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 4.060 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set

Part Number: SUM-GP406010

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

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: Today

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 3.790 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set

Part Number: SUM-GP379010

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 4.450 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP445016

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

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: Today

• Free Shipping

Clips (each) w/o tang, 23mm x 1.6mm Round Wire Lock

Part Number: MLE-9315805

Not Yet Reviewed

Estimated Ship Date: Today

Piston Rings, Pro GPX Gas Ported, 4.380 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP438016

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 4.065 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP406516

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Piston Ring Groove Lock Spacers, 86mm-86.75mm Bore, Each

Part Number: MAN-462459-1

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

• Drop Ship
• Special Order

Wrist Pin Lock Ring, Wire Lock with Tang, Steel, 0.866 in./22mm Pin Diameter, 0.062 in. Thick, Each

Part Number: MLE-4394680

Not Yet Reviewed

Estimated Ship Date: Today

Piston Rings, Pro GPX Gas Ported, 4.350 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP435015

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 3.662 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP366212

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping