JEEP 4.0L/242 Pistons & Piston Rings Engines & Components

Hastings Piston Ring Sets 665S040

Engine Piston Ring Set, Single Cyl Ring Set; Phosphate

Part Number: HSN-665S040

Not Yet Reviewed

Estimated Ship Date: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M667S040

Engine Piston Ring Set, Single Cyl Ring Set; Plasma Moly

Part Number: HSN-2M667S040

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Estimated Ship Date: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

Hastings Piston Ring Sets 667S040

Engine Piston Ring Set, Single Cyl Ring Set; Phosphate

Part Number: HSN-667S040

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Estimated Ship Date: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

ICON Premium Forged Pistons IC944.080

Pistons, Forged, Dish, 3.955 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Jeep, L6, Set of 6

Part Number: UEM-IC944080

Not Yet Reviewed

Estimated Ship Date: May 29, 2026 if ordered today

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Estimated Ship Date: May 29, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Pistons 1-6650-3915

D.S.S. FX-Series Forged 4032 Alloy Pistons 1-6650-3915

Piston Set, 4.0 Jeep 6 Cyl. 1-FX Series -10cc Jeep Dish Top Piston Set. 3.915 bore

Part Number: DMS-1-6650-3915

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Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Pistons 1-6650-3875

Piston Set, 4.0 Jeep 6 Cyl. 1-FX Series -10cc Jeep Dish Top Piston Set. 3.875 bore

Part Number: DMS-1-6650-3875

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Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Pistons 1-6675-3905

Piston Set, 4.7 Jeep 6 Cyl. 1-FX Series -27cc Jeep Dish Top Piston Set. 3.905 bore

Part Number: DMS-1-6675-3905

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-6653-3905

Piston Set, 4.0 Jeep 6 Cyl. K1-FX Series -21cc Jeep Dish Top Piston Set. 3.905 bore

Part Number: DMS-K1-6653-3905

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-6650-3935

Piston Set, 4.0 Jeep 6 Cyl. K1-FX Series -10cc Jeep Dish Top Piston Set. 3.935 bore

Part Number: DMS-K1-6650-3935

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-6653-3915

Piston Set, 4.0 Jeep 6 Cyl. K1-FX Series -21cc Jeep Dish Top Piston Set. 3.915 bore

Part Number: DMS-K1-6653-3915

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons 2-6673-3905

Piston Set, 4.7 Jeep 6 Cyl. 2-FX Series -21cc Jeep Dish Top Piston Set. 3.905 bore

Part Number: DMS-2-6673-3905

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Enginetech Piston Ring Sets C38856-060

Engine Piston Ring Set 63-95 BUI/CHV/GMC/JEP/OLD/PON 3.8L/4.0L/4.1L

Part Number: EGN-C38856060

Not Yet Reviewed

Estimated Ship Date: May 15, 2026 if ordered today

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Estimated Ship Date: May 15, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons 2-6650-3905

Piston Set, 4.0 Jeep 6 Cyl. 2-FX Series -10cc Jeep Dish Top Piston Set. 3.905 bore

Part Number: DMS-2-6650-3905

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons 2-6670-3905

Piston Set, 4.7 Jeep 6 Cyl. 2-FX Series -10cc Jeep Dish Top Piston Set. 3.905 bore

Part Number: DMS-2-6670-3905

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons 2-6670-3915

Piston Set, 4.7 Jeep 6 Cyl. 2-FX Series -10cc Jeep Dish Top Piston Set. 3.915 bore

Part Number: DMS-2-6670-3915

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons 2-6673-3935

Piston Set, 4.7 Jeep 6 Cyl. 2-FX Series -21cc Jeep Dish Top Piston Set. 3.935 bore

Part Number: DMS-2-6673-3935

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Enginetech Piston and Ring Kits K1593(6)PSTD

Engine Piston Kit 87-95 JEP 4.0L

Part Number: EGN-K15936PSTD

Not Yet Reviewed

Estimated Ship Date: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today

Enginetech Piston Sets for 1987 COMANCHE, 1992-1995 WRANGLER - P1593(6)STD

Engine Piston Set 87-95 JEP 4.0L

Part Number: EGN-P15936STD

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Estimated Ship Date: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today

Enginetech Piston Ring Sets for 1996-2001 CHEROKEE, 1996-2004 GRAND CHEROKEE, 1997-2006 WRANGLER - S38816-060

Engine Piston Ring Set 96-06 JEP 4.0L

Part Number: EGN-S38816060

Not Yet Reviewed

Estimated Ship Date: May 15, 2026 if ordered today

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Estimated Ship Date: May 15, 2026 if ordered today

Hastings Piston Ring Sets 667040

Piston Rings, Phosphate Coated, 3.915 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 6-Cylinder, Set

Part Number: HSN-667040

Not Yet Reviewed

Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Hastings Piston Ring Sets 665060

Engine Piston Ring Set, 4-Cyl Ring Set; Phosphate

Part Number: HSN-665060

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Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Mahle Original Premium Piston Ring Sets for 1996-2001 CHEROKEE, 1996-2004 GRAND CHEROKEE, 1997-2006 WRANGLER - 41870CP.030

Piston Rings, Premium Piston Ring Sets, Plasma-moly, 3.905 in. Bore, 1.5mm, 1.5mm, 4.0mm Thickness, L6, Set

Part Number: MAH-41870CP030

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Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Mahle Original OE Replacement Pistons for 1996-2001 CHEROKEE, 1996-2004 GRAND CHEROKEE, 1997-2006 WRANGLER - 224-3415.020

Piston - Jeep & Dodge Trk. (2.5L) 150 L4 VIN "P",(4.0L) 242 L6 VIN "S" (1996-2001)

Part Number: MAH-2243415020

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Enginetech Piston Ring Sets for 1996-2001 CHEROKEE, 1996-2004 GRAND CHEROKEE, 1997-2006 WRANGLER - S38816-020

Engine Piston Ring Set 96-06 JEP 4.0L

Part Number: EGN-S38816020

Not Yet Reviewed

Estimated Ship Date: May 14, 2026 if ordered today

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Estimated Ship Date: May 14, 2026 if ordered today

Enginetech Piston Sets for 1996-2001 CHEROKEE, 1996-2004 GRAND CHEROKEE, 1997-2006 WRANGLER - P3071(6)030

Engine Piston Set 96-06 JEP 4.0L

Part Number: EGN-P30716030

Not Yet Reviewed

Estimated Ship Date: May 15, 2026 if ordered today

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Estimated Ship Date: May 15, 2026 if ordered today