JEEP 4.0L/242 Engines & Components

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: Aug 7, 2025 if ordered today

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Piston Set, 4.7 Jeep 6 Cyl. K1-FX Series -10cc Jeep Dish Top Piston Set. 3.935 bore

Part Number: DMS-K1-6670-3935

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Estimated Ship Date: Aug 8, 2025 if ordered today

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Oil Filter, Canister, 20mm x 1.5 Thread Size, Each

Part Number: ADO-PF970C

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Estimated Ship Date: Today

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

Part Number: UEM-IC944KTM-020

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Estimated Ship Date: Aug 8, 2025 if ordered today

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Oil Filler Cap, Twist-in, Round, Plastic, Black, Jeep, Each

Part Number: CWA-33001016

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Estimated Ship Date: Today

Timing Sprocket Woodruff Key, This Item Is Not Painted, Metal,

Part Number: CWA-J3107002

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Crankshaft Keys, Short Type, 0 degree Offset, Steel, Natural, 3/16 in. Tall, AMC, Buick, Cadillac, Chevy, GMC, Jeep, Oldsmobile, Pontiac, Set of 100

Part Number: PIO-PK-9-100

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Estimated Ship Date: Aug 4, 2025 if ordered today

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PCV Elbow, Rubber, Black, Dodge, Jeep, Each

Part Number: RNB-47057

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

Idler Pulley, Serpentine, Steel, Black, Chrysler, Dodge, Eagle, Jeep, Plymouth, Each

Part Number: CWA-53002905

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 1, 2025 if ordered today

Heads, NEWAMC4.0/24299-04CYLHD

Part Number: VRE-2A34N

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Estimated Ship Date: Aug 27, 2025 if ordered today

• Core Charge $130.00
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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

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Estimated Ship Date: Aug 8, 2025 if ordered today

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Piston Rings, Phosphate Coated, 3.875 in. Bore, 1.5mm, 1.5mm, 4.0mm Thickness, for Single Piston, Set

Part Number: HSN-4815S

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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

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Estimated Ship Date: Aug 7, 2025 if ordered today

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Idler Pulley, Serpentine, Steel, Black, for use on Acura®, GM, Ford, Jaguar, Each

Part Number: HDA-5975

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Today

Rocker Arm Bridge, Stamped Steel, Jeep, Each

Part Number: OMX-1740811

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Pistons and Rings Kit, Forged, Dish Top, 3.895 in. Bore, Moly Ring, AMC, Jeep, Inline 6, Kit

Part Number: UEM-IC945KTM-020

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Estimated Ship Date: Aug 18, 2025 if ordered today

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Engine Re-Ring, Cast, 3.875 in. Bore, Standard Rod, Jeep, L6, Kit

Part Number: FEM-2051879000

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Pistons and Rings Kit, Forged, Dish, 3.935 in. Bore, Moly Ring, AMC, Jeep, Inline 6, Kit

Part Number: UEM-IC945KTM-060

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Estimated Ship Date: Jul 29, 2025 if ordered today

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Piston Set, 4.0 Jeep 6 Cyl. 1-FX Series -15cc Jeep Dish Top Piston Set. 3.905 bore

Part Number: DMS-1-6652-3905

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Estimated Ship Date: Aug 7, 2025 if ordered today

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Pistons, Forged, Dish, 3.935 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Jeep, L6, Set of 6

Part Number: UEM-IC944-060

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Estimated Ship Date: Aug 18, 2025 if ordered today

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Oil Pan Drain Plug, 14mm x 1.50 Thread Size, Gasket, Chrysler, Dodge, Fiat, Jeep, Mitsubishi, Ram, SRT, Each

Part Number: CWA-6507741AA

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

Oil Filter Relocation Kit, Dual Filter, 3/4-16 in. Filter Threads, 20mm x 1.5 Engine Threads, Kit

Part Number: TRD-1258

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Estimated Ship Date: Sep 29, 2025 if ordered today

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Pistons, Premium Forged, 3.915 in. Bore, Dish, 1.353 in. Compression Height, Press/Float Pin, 5/64 x 5/64 x 3/16 Ring Grooves, Jeep, Set of 6

Part Number: UEM-IC668-040

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Estimated Ship Date: Aug 18, 2025 if ordered today

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Hose, PCV, Plastic, Black, Jeep, Each

Part Number: CWA-53030591

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Estimated Ship Date: Today

Valve Cover Grommet, Rubber, 0.45 in. I.D., Jeep, 2.5L, Each

Part Number: CWA-33001237

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Estimated Ship Date: Today