Pistons - 98.425mm Bore (mm) - +21.00cc Piston Head Volume (cc) - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6653-3875

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6653-3875

Piston Set, 4.0 Jeep 6 Cyl. 3-FX Series -21cc Jeep Dish Top Piston Set. 3.875 bore

Part Number: DMS-3-6653-3875

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6673-3875

Piston Set, 4.7 Jeep 6 Cyl. 3-FX Series -21cc Jeep Dish Top Piston Set. 3.875 bore

Part Number: DMS-3-6673-3875

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6653-3875

Piston Set, 4.0 Jeep 6 Cyl. K3-FX Series -21cc Jeep Dish Top Piston Set. 3.875 bore

Part Number: DMS-K3-6653-3875

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons 2-6653-3875

Piston Set, 4.0 Jeep 6 Cyl. 2-FX Series -21cc Jeep Dish Top Piston Set. 3.875 bore

Part Number: DMS-2-6653-3875

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons 2-6673-3875

Piston Set, 4.7 Jeep 6 Cyl. 2-FX Series -21cc Jeep Dish Top Piston Set. 3.875 bore

Part Number: DMS-2-6673-3875

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Pistons 1-6653-3875

Piston Set, 4.0 Jeep 6 Cyl. 1-FX Series -21cc Jeep Dish Top Piston Set. 3.875 bore

Part Number: DMS-1-6653-3875

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Pistons 1-6673-3875

Piston Set, 4.7 Jeep 6 Cyl. 1-FX Series -21cc Jeep Dish Top Piston Set. 3.875 bore

Part Number: DMS-1-6673-3875

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6673-3875

Piston Set, 4.7 Jeep 6 Cyl. K3-FX Series -21cc Jeep Dish Top Piston Set. 3.875 bore

Part Number: DMS-K3-6673-3875

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-6673-3875

Piston Set, 4.7 Jeep 6 Cyl. K1-FX Series -21cc Jeep Dish Top Piston Set. 3.875 bore

Part Number: DMS-K1-6673-3875

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-6653-3875

Piston Set, 4.0 Jeep 6 Cyl. K1-FX Series -21cc Jeep Dish Top Piston Set. 3.875 bore

Part Number: DMS-K1-6653-3875

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits K2-6653-3875

Piston Set, 4.0 Jeep 6 Cyl. K2-FX Series -21cc Jeep Dish Top Piston Set. 3.875 bore

Part Number: DMS-K2-6653-3875

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits K2-6673-3875

Piston Set, 4.7 Jeep 6 Cyl. K2-FX Series -21cc Jeep Dish Top Piston Set. 3.875 bore

Part Number: DMS-K2-6673-3875

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

ICON Premium Forged Pistons IC944.020

Pistons, Forged, Dish, 3.875 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Jeep, L6, Set of 6

Part Number: UEM-IC944-020

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

ICON Premium Forged Piston and Ring Kits IC944KTM.020

Piston and Ring Kit, Forged, Dish, 3.875 in. Bore, Stroked, AMC, Jeep, 4.0L, Kit

Part Number: UEM-IC944KTM-020

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today