JEEP 4.0L/242 Pistons & Piston Rings

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: May 27, 2026 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: May 28, 2026 if ordered today

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Piston Rings, Premium Ductile Ring Sets, 0.040 in. Oversize, 3.915 in. Bore, Plasma-moly, 1.5mm, 1.5mm, 4.0mm Ring Thickness, H6, L6, V6, Set of 6

Part Number: HSN-2M4815040

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Estimated Ship Date: May 5, 2026 if ordered today

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Pistons, Hypereutectic, Dish, 3.935 in. Bore, 1.5mm, 1.5mm, 4.0mm Ring Grooves, AMC, Set of 6

Part Number: UEM-3241HC-060

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Estimated Ship Date: May 28, 2026 if ordered today

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

Part Number: UEM-3242HC-STD

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Estimated Ship Date: May 28, 2026 if ordered today

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

Part Number: EGN-C38856040

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Estimated Ship Date: May 13, 2026 if ordered today

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Engine Piston Ring Set, 6-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M667040

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Estimated Ship Date: May 5, 2026 if ordered today

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Piston Rings, 3.875 in. Bore, 1.5mm, 1.5mm, 4.0mm Thickness, L6, Set

Part Number: CWA-4798878

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Estimated Ship Date: Jul 10, 2026 if ordered today

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Pistons, Cast, Dish, 3.895 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, AMC, L6, Set of 6

Part Number: UEM-2229C-020

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Estimated Ship Date: May 28, 2026 if ordered today

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Engine Piston Ring Set, Single Cyl Ring Set; Phosphate

Part Number: HSN-4815S040

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Estimated Ship Date: May 5, 2026 if ordered today

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Piston Rings, Phosphate Coated, 3.895 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 6-Cylinder, Set

Part Number: HSN-667020

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Estimated Ship Date: May 6, 2026 if ordered today

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Engine Piston Ring Set, 6-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M667020

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Estimated Ship Date: May 6, 2026 if ordered today

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Pistons, Hypereutectic, Dish, 3.895 in. Bore, 1.5mm, 1.5mm, 4.0mm Ring Grooves, AMC, Set of 6

Part Number: UEM-3241HC-020

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Estimated Ship Date: May 28, 2026 if ordered today

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Pistons, Hypereutectic, Dish, 3.905 in. Bore, 1.5mm, 1.5mm, 4.0mm Ring Grooves, AMC, Set of 6

Part Number: UEM-3241HC-030

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Estimated Ship Date: May 28, 2026 if ordered today

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Pistons, Hypereutectic, Dish, 3.905 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, AMC, L6, Set of 6

Part Number: UEM-3242HC-030

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Piston Rings, Premium Piston Ring Sets, Plasma-moly, 3.935 in. Bore, 1.5mm, 1.5mm, 4.0mm Thickness, L6, Set

Part Number: MAH-41870CP060

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Estimated Ship Date: May 21, 2026 if ordered today

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Engine Piston Ring Set, 6-Cyl Ring Set; Triple Chrome

Part Number: HSN-2C667

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Estimated Ship Date: May 4, 2026 if ordered today

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

Part Number: HSN-2M4815S040

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Estimated Ship Date: May 5, 2026 if ordered today

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

Part Number: HSN-2M4815S

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Estimated Ship Date: May 4, 2026 if ordered today

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Piston Rings, Phosphate Coated, 3.905 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 6-Cylinder, Set

Part Number: HSN-667030

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Estimated Ship Date: May 4, 2026 if ordered today

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Piston Rings, Phosphate Coated, 3.934 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 6-Cylinder, Set

Part Number: HSN-667060

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Estimated Ship Date: May 4, 2026 if ordered today

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Piston Rings, Phosphate Coated, 3.955 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 6-Cylinder, Set

Part Number: HSN-667080

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Estimated Ship Date: May 5, 2026 if ordered today

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Piston Rings, Standard Piston Ring Sets, Cast Iron, 3.895 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, L6, Set

Part Number: MAH-50514CP020

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Engine Piston Ring Set, 6-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4815060

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Piston, Flat Top, 3.875 in. Bore, Cast Aluminum, Jeep, 2.5L, 4.0L, Each

Part Number: OMX-1742707

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Estimated Ship Date: Tomorrow