Pistons - 3.940 in. Bore (in.) - 3.310 in. Stroke - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

KB Performance Hyper Piston and Ring Kits KB167KTM.030

Piston and Ring Kit, Hypereutectic, Flat, 3.940 in. Bore, Mopar, Small Block, Kit

Part Number: UEM-KB167KTM-030

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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KB Performance Hyper Piston and Ring Kits KB399KTM.030

Piston and Ring Kit, Hypereutectic, Dome, 3.940 in. Bore, Mopar, Small Block, Kit

Part Number: UEM-KB399KTM-030

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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KB Performance Pistons KB167.030

Pistons, Hypereutectic, Flat, 3.940 in. Bore, Chrysler, Dodge, Plymouth, Set of 8

Part Number: UEM-KB167-030

1.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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ICON Premium Forged Pistons IC845.030

Pistons, Forged, Dome, 3.940 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Mopar, Small Block, Set of 8

Part Number: UEM-IC845-030

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

KB Performance Pistons KB399.030

Pistons, Hypereutectic, Dome, 3.940 in. Bore, Chrysler, Dodge, Plymouth, Set of 8

Part Number: UEM-KB399-030

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

Mahle Original OE Replacement Pistons 224-2007.030

Piston - Chrys. Pass., Marine & Dodge Trk. 238.5 (3.9L) (1986-98), 318 (5.2L) Eng.

Part Number: MAH-2242007030

Not Yet Reviewed

Estimated Ship Date: Today

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Enginetech Piston and Ring Kits K1516(8)030

Engine Piston Kit 67-84 CHR/DOD/PLY 5.2L

Part Number: EGN-K15168030

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits K2-6310-3940

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits K2-6310-3940

Piston Set, 318 Mopar K2-FX Series -3cc Small Block Mopar Flat Top Piston Set. 3.940 bore

Part Number: DMS-K2-6310-3940

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-6310-3940

Piston Set, 318 Mopar K3-FX Series -3cc Small Block Mopar Flat Top Piston Set. 3.940 bore

Part Number: DMS-K3-6310-3940

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-6310-3940

Piston Set, 318 Mopar K1-FX Series -3cc Small Block Mopar Flat Top Piston Set. 3.940 bore

Part Number: DMS-K1-6310-3940

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons 2-6310-3940

Piston Set, 318 Mopar 2-FX Series -3cc Small Block Mopar Flat Top Piston Set. 3.940 bore

Part Number: DMS-2-6310-3940

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6310-3940

Piston Set, 318 Mopar 3-FX Series -3cc Small Block Mopar Flat Top Piston Set. 3.940 bore

Part Number: DMS-3-6310-3940

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

Enginetech Piston and Ring Kits K3004(6)030

Engine Piston Kit 87-03 DOD 3.9L

Part Number: EGN-K30046030

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Enginetech Piston and Ring Kits K3004(6)P030

Engine Piston Kit 87-03 DOD 3.9L

Part Number: EGN-K30046P030

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Enginetech Piston and Ring Kits K3004(8)030

Engine Piston Kit 85-03 CHR/DOD/JEP/PLY 5.2L

Part Number: EGN-K30048030

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Enginetech Piston Sets P1516(8)030

Engine Piston Set 67-84 CHR/DOD/PLY 5.2L

Part Number: EGN-P15168030

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Pistons 1-6310-3940

Piston Set, 318 Mopar 1-FX Series -3cc Small Block Mopar Flat Top Piston Set. 3.940 bore

Part Number: DMS-1-6310-3940

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

ICON Premium Forged Piston and Ring Kits IC845KTD.030

Piston and Ring Kit, Forged, Dome, 3.940 in. Bore, Mopar, Small Block, Kit

Part Number: UEM-IC845KTD-030

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today