JEEP 4.0L/242 Engines & Components

Main Cap Fastener, Bolt, Hex, 1/2-13 in. Thread, 3 in. Length, Steel, Black Oxide, Jeep, Each

Part Number: CWA-J4006948

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Oil Drain Pan Plugs, Plug, Thread Size 1/2-20 in., Each

Part Number: RNB-69012

Not Yet Reviewed

Estimated Ship Date: Today

Belt, Poly Rib, Serpentine, 6-Rib, 88.25 in. Length, Each

Part Number: DAC-5060883

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

Valve Cover Grommet, PCV Style, Rubber, 0.720 in. I.D., Jeep, 2.5L, 4.2L, Each

Part Number: CWA-J8134400

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Cylinder Head, OE-Replacement Jeep Inline, Assembled, Cast Iron, Natural, Jeep, 4.0L, Each

Part Number: PMX-CHR640N

3.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

• Free Shipping

Rod Bearings, 0.001 in. Crankshaft Undersize, Tri Metal, AMC, Jeep, L6, 3.3L, 3.8L, 4.0L, 4.2L, Set of 6

Part Number: SLP-63310CPA1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Belt, Poly Rib, Serpentine, 6-Rib, 71.00 in. Length, Each

Part Number: DAC-5060710

Not Yet Reviewed

Estimated Ship Date: Today

Oil Pump, Standard-Volume, AMC, Jeep, 2.5, 4.0, 4.2L, L4-L6, Each

Part Number: SLP-224-41198

Not Yet Reviewed

Estimated Ship Date: Today

Lifter, Hydraulic Flat Tappet, Jeep, Each

Part Number: OMX-1741803

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

• Drop Ship
• Special Order

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

Main Bearings, 1/2 Groove, .002 in. Crankshaft Undersize, Bi Metal, Jeep, 2.5, 3.8, 4.0, 4.2L, Pair

Part Number: CWA-J8133682

Not Yet Reviewed

Estimated Ship Date: Today

Oil Filter Relocation Kit, Dual Filter, 96 in. Length Hoses, Kit

Part Number: PRM-10795

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 1, 2025 if ordered today

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Hose, PCV, Plastic, Black, Each

Part Number: CWA-53030991

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

Oil Pump, Wet Sump Style, Pickup, Jeep, 4.0L, Each

Part Number: CWA-33002921

Not Yet Reviewed

Estimated Ship Date: Nov 26, 2025 if ordered today

• Drop Ship
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Valve, Exhaust, 1.500 in. Valve Head Diameter, Steel, 4.940 in. Overall Length, Dodge, Jeep, Each

Part Number: CWA-53010513AA

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

• Drop Ship
• Special Order

Crate Engine, Remanufactured, Long Block, Assembled, Jeep, 4.0L/242, Each

Part Number: VRE-DA37

Not Yet Reviewed

Estimated Ship Date: Oct 16, 2025 if ordered today

• Core Charge $520.00
• Drop Ship
• Free Shipping
• Special Order

A/C Bypass Pulley, Dodge, Jeep, Each

Part Number: RNB-34237

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Retainer, Valve, 7 Degree, Jeep, L4, L6, Each

Part Number: CWA-33003521

Not Yet Reviewed

Estimated Ship Date: Today

Belt, OE Technology Series, Multi-V, Serpentine, 6-Rib, 96.00 in. Length, Each

Part Number: CEL-4060960

4.83 out of 5 stars ( 12 )

Estimated Ship Date: Today

Pistons, Premium, Forged 4032 Aluminum, 3.905 in. Bore, 3.895 in. Stroke, Dish, Jeep, Set of 6

Part Number: UEM-IC668-030

Not Yet Reviewed

Estimated Ship Date: Oct 7, 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

Not Yet Reviewed

Estimated Ship Date: Oct 7, 2025 if ordered today

• Drop Ship
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Timing Chain and Gears, Single Non-roller, Steel Sprockets, Jeep, 4.0L, Kit

Part Number: CWA-33002977K

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Rod Bearings, Standard Size, Bi-metal, Silicon Aluminum, Set of 6

Part Number: KGB-CR648SI

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

Idler Pulley, Serpentine, 6-groove, Plastic, Black, Jeep, 2.5L, 4.0L, Each

Part Number: CWA-53002903

Not Yet Reviewed

Estimated Ship Date: Today

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

Part Number: SLP-E-234K40

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Estimated Ship Date: Today