Pistons - 4.125 in. Bore (in.) - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits K2-3150-4125

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits K2-3150-4125

Piston Set, 363 Stroker SBF 289 - 302 K2-FX Series -4cc Flat Top inline Piston Set. 4.125 bore

Part Number: DMS-K2-3150-4125

Not Yet Reviewed

Estimated Ship Date: Nov 11, 2025 if ordered today

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Estimated Ship Date: Nov 11, 2025 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits K2-3360-4125

Piston Set, 427W /5.8 Stroker SBF 351W K2-FX Series -22cc Dish Top Inline / Twisted Wedge Piston Set. 4.125 bore

Part Number: DMS-K2-3360-4125

Not Yet Reviewed

Estimated Ship Date: Nov 11, 2025 if ordered today

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Estimated Ship Date: Nov 11, 2025 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits K2-2303-4125

Piston Set, 400 SBC K2-FX Series -16cc Dish Top Piston Set. 4.125 bore

Part Number: DMS-K2-2303-4125

Not Yet Reviewed

Estimated Ship Date: Nov 11, 2025 if ordered today

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Estimated Ship Date: Nov 11, 2025 if ordered today

Mahle PowerPak Piston and Ring Kits 930210925

Piston and Ring Kit, Power Pak, 4.125 in. Bore, 3.750 in. Stroke, 6.00 in. Rod, +16.00cc Dish, Forged, Chevrolet, 400 CID, Kit

Part Number: MLE-930210925

Not Yet Reviewed

Estimated Ship Date: Nov 11, 2025 if ordered today

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Estimated Ship Date: Nov 11, 2025 if ordered today

Mahle LSX Combo PowerPak Piston and Ring Kits 930227325

Pistons, LSX Combo PowerPak Piston and Ring Kits, 4.125 in. Bore, Forged Aluminum, Flat Top, Rings, Chevrolet, 7.0L, Set of 8

Part Number: MLE-930227325

Not Yet Reviewed

Estimated Ship Date: Today

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KB Performance Hyper Piston and Ring Kits KB160KTM.STD

Piston and Ring Kit, Hypereutectic, Dome, 4.125 in. Bore, Chevy, Big Block, Kit

Part Number: UEM-KB160KTM-STD

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

Mahle PowerPak Piston and Ring Kits 930200225

Piston and Ring Kit, PowerPak, Forged, 4.125 in. Bore, Chevy, Small Block, Kit

Part Number: MLE-930200225

Not Yet Reviewed

Estimated Ship Date: Nov 11, 2025 if ordered today

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Estimated Ship Date: Nov 11, 2025 if ordered today

Mahle PowerPak Piston and Ring Kits 930244425

Piston and Ring Kit, Forged, 4.125 in. Bore, Ford, Kit

Part Number: MLE-930244425

Not Yet Reviewed

Estimated Ship Date: Nov 11, 2025 if ordered today

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Estimated Ship Date: Nov 11, 2025 if ordered today

Mahle LSX Combo PowerPak Piston and Ring Kits 930226925

Piston and Ring Kit, Forged, Flat Top, 4.125 in. Bore, Chevy, LS, Kit

Part Number: MLE-930226925

Not Yet Reviewed

Estimated Ship Date: Nov 11, 2025 if ordered today

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Estimated Ship Date: Nov 11, 2025 if ordered today

ICON Premium Forged Pistons IC965.STD

Pistons, Forged, Dome, 4.125 in. Bore, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Chevy, Small Block, Set of 8

Part Number: UEM-IC965-STD

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Pistons 1-2400-4125

Piston Set, 400 SBC 1-FX Series -5cc Flat Top Piston Set. 4.125 bore

Part Number: DMS-1-2400-4125

Not Yet Reviewed

Estimated Ship Date: Nov 11, 2025 if ordered today

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Estimated Ship Date: Nov 11, 2025 if ordered today

KB Performance Claimer Piston and Ring Kits 9911HCKTM.STD

Piston and Ring Kit, Claimer, Hypereutectic, Flat, 4.125 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-9911HCKTMSTD

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

Summit Racing™ Forged Pro Pistons SUM-SBC400STD

Forged Pro pistons for SB Chevy 400, 4.125 bore, 1.425 C.H., 3.75 in. stroke, 5.7 in. rod, 12cc Dish, 10.5@64cc, 10.2@67cc, 9.8@72cc.

Part Number: SUM-SBC400STD

Not Yet Reviewed

Estimated Ship Date: Today

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KB Performance Hyper Piston and Ring Kits KB147KTM.STD

Piston and Ring Kit, Hypereutectic, Dish, 4.125 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB147KTM-STD

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

KB Performance Hyper Piston and Ring Kits KB361KTM.STD

Piston and Ring Kit, Hypereutectic, Dome, 4.125 in. Bore, Chevy, Big Block, Kit

Part Number: UEM-KB361KTM-STD

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

Diamond Pistons Race Series Pistons 21565-RS-8

LS2K - 2000HP Rated - 2618 Material - Inboard Design - Coated Skirts - Includes H13 Pins and AP Rings

Part Number: DPP-21565-RS-8

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-2763-4125

k3-2763-4125-l8t-chevy-lt-direct-injection-3-fx-series-2618-alloy-series-forged-piston-set-4-125-bore

Part Number: DMS-K3-2763-4125

Not Yet Reviewed

Estimated Ship Date: Nov 11, 2025 if ordered today

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Estimated Ship Date: Nov 11, 2025 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-2783-4125

k3-2783-4125-lt1-6-2-stroker-chevy-lt-direct-injection-3-fx-series-2618-alloy-series-forged-piston-set-4-125-bore

Part Number: DMS-K3-2783-4125

Not Yet Reviewed

Estimated Ship Date: Nov 11, 2025 if ordered today

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Estimated Ship Date: Nov 11, 2025 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-3821-4125

Piston Set, 412C / Boss Stroker SBF 351C K3-FX Series -13cc Dish Top Boss/Canted Piston Set. 4.125 bore

Part Number: DMS-K3-3821-4125

Not Yet Reviewed

Estimated Ship Date: Nov 11, 2025 if ordered today

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Estimated Ship Date: Nov 11, 2025 if ordered today

Wiseco Professional Series Piston Kits K0005X125

Piston and Rings, Forged Dome, 4.125 in. Bore, Chevy, Kit

Part Number: WIS-K0005X125

Not Yet Reviewed

Estimated Ship Date: Nov 20, 2025 if ordered today

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Estimated Ship Date: Nov 20, 2025 if ordered today

Wiseco Professional Series Pistons K0034BS

Pistons, Forged Dome, 4.125 in. Bore, Chevy, Set of 8

Part Number: WIS-K0034BS

Not Yet Reviewed

Estimated Ship Date: Nov 19, 2025 if ordered today

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Estimated Ship Date: Nov 19, 2025 if ordered today

Mahle PowerPak Plus Piston and Ring Kits 197830025

Piston and Ring Kit, Powerpak Plus, Gas Ported, Dome, 4.125 in. Bore, 4.00 in. Stroke, Forged Aluminum, Chevy, Set of 8

Part Number: MLE-197830025

Not Yet Reviewed

Estimated Ship Date: Nov 11, 2025 if ordered today

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Estimated Ship Date: Nov 11, 2025 if ordered today

D.S.S. FX-Series Forged Piston and Ring Kits with XR Wrist Pins K3-2943-4125

Pistons, Rings, FX-Series, XR Wrist Pins, Forged, 15.00cc Dish, 4.125 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K3-2943-4125

Not Yet Reviewed

Estimated Ship Date: Nov 11, 2025 if ordered today

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Estimated Ship Date: Nov 11, 2025 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-3156-4125

Piston Set, 363 Stroker SBF 289 - 302 K3-FX Series -13cc Dish Top Inline / Twisted Wedge Piston Set. 4.125 bore

Part Number: DMS-K3-3156-4125

Not Yet Reviewed

Estimated Ship Date: Nov 11, 2025 if ordered today

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Estimated Ship Date: Nov 11, 2025 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-2403-4125

Piston Set, 400 SBC K3-FX Series -16cc Dish Top Piston Set. 4.125 bore

Part Number: DMS-K3-2403-4125

Not Yet Reviewed

Estimated Ship Date: Nov 11, 2025 if ordered today

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Estimated Ship Date: Nov 11, 2025 if ordered today