Pistons & Piston Rings

Piston Rings, Pro GPX Gas Ported, 4.625 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP4625446

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

• Free Shipping
• Special Order

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: Monday 12/22/2025

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 4.130 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP413016

Not Yet Reviewed

Estimated Ship Date: Monday 12/22/2025

• Free Shipping

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: Monday 12/22/2025

• Free Shipping

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: Monday 12/22/2025

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 4.155 in. Bore, File Fit, Gas Nitrided, 0.043 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP415546

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

• Free Shipping
• Special Order

Piston Rings, Pro GPX Gas Ported, 4.000 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set

Part Number: SUM-GP400043

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

• Free Shipping
• Special Order

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: Monday 12/22/2025

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 3.785 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP378515

Not Yet Reviewed

Estimated Ship Date: Feb 4, 2026 if ordered today

• Free Shipping
• Special Order

Piston Rings, Pro GPX Gas Ported, 4.065 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 2.5mm Thickness, V8, Set

Part Number: SUM-GP406525

Not Yet Reviewed

Estimated Ship Date: Monday 12/22/2025

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 3.905 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP390516

Not Yet Reviewed

Estimated Ship Date: Monday 12/22/2025

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 3.785 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP378512

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

• Free Shipping
• Special Order

Piston Rings, Plasma-moly, 4.155 in. Bore, 1/16 in., 1/16 in., 3/16 in., Thickness, 8-Cylinder, Set

Part Number: JEP-J103F8-41555

Not Yet Reviewed

Estimated Ship Date: Dec 23, 2025 if ordered today

• Free Shipping
• Special Order

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: Monday 12/22/2025

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 3.800 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set

Part Number: SUM-GP380010

Not Yet Reviewed

Estimated Ship Date: Monday 12/22/2025

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 4.135 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP413512

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

• Free Shipping
• Special Order

Piston Rings, Pro GPX Gas Ported, 4.320 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set

Part Number: SUM-GP432043

Not Yet Reviewed

Estimated Ship Date: Monday 12/22/2025

• Free Shipping

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: Monday 12/22/2025

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 3.898 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set

Part Number: SUM-GP389810

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/22/2025

• Free Shipping

Piston Rings, Pro GPX Gas Ported, 4.090 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP409015

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

• Free Shipping
• Special Order

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: Monday 12/22/2025

• Free Shipping

Piston and Ring Kits, Powersports 2-Stroke Forged Series, 3.209 in. Bore, Forged Aluminum, Rings, for use on Honda®, Kit

Part Number: WIS-533M08150

Not Yet Reviewed

Estimated Ship Date: Jan 15, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Piston Rings, Pro GPX Gas Ported, 4.100 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP410015

Not Yet Reviewed

Estimated Ship Date: Feb 5, 2026 if ordered today

• Free Shipping
• Special Order

HASTRACE 8-CYL RING SET

Part Number: HSN-SN9065005

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

• Free Shipping
• Special Order

Silv-O-Lite Hyper Coated Piston - Ford 351ci/5.8L (V8) Kit with Rings

Part Number: UEM-1171HC-STDK1

Not Yet Reviewed

Estimated Ship Date: Jan 27, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order