JEEP 4.0L/242 Pistons & Piston Rings

Pistons, Hypereutectic, Dish, 3.875 in. Bore, Jeep, L6, Set of 6

Part Number: SLP-H802CP

5.0 out of 5 stars ( 9 )

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Pistons, Hypereutectic, Dish, 3.895 in. Bore, Jeep, L6, Set of 6

Part Number: SLP-H802CP20

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Piston and Ring Kit, Forged, Dish, 3.905 in. Bore, Stroked, AMC, Jeep, 4.0L, Kit

Part Number: UEM-IC944KTM-030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 16, 2026 if ordered today

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

Part Number: SLP-E-234K30

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Piston, Hypereutectic, Dish, 98.425mm Bore, 1.5mm, 1.5mm, 4.0mm Ring Grooves, Jeep, L6, 4.0L, Each

Part Number: SLP-WH802CP

4.8 out of 5 stars ( 5 )

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Pistons, KB Performance, 3.785 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-KB424C-STD

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Piston Rings, Premium Ductile Ring Sets, Standard Size, 3.875 in. Bore, Plasma-moly, 1.5mm, 1.5mm, 4.0mm Ring Thickness, H6, L6, V6, Set of 6

Part Number: HSN-2M4815

5.0 out of 5 stars ( 1 )

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Pistons, Hypereutectic, Dish, 3.875 in. Bore, Jeep, 4.0L, Set of 6

Part Number: UEM-3241HC-STD

2.0 out of 5 stars ( 1 )

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Piston Rings, Moly, 3.935 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 6-Cylinder, Set

Part Number: SLP-E-234K60

5.0 out of 5 stars ( 3 )

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Piston Rings, Premium Ductile Ring Sets, 0.020 in. Oversize, 3.895 in. Bore, Plasma-moly, 1.5mm, 1.5mm, 4.0mm Ring Thickness, H6, L6, V6, Set of 6

Part Number: HSN-2M4815020

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Pistons, Hypereutectic, 3.895 in. Bore, 1.353 in. CH, Press/Floating Offset 0.931 in. Pins, with Locks, for Stroker Builds, Jeep, AMC L6, Set of 6

Part Number: UEM-KB424C-020

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Estimated Ship Date: Feb 24, 2026 if ordered today

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Pistons, Hypereutectic, Dish, 3.905 in. Bore, Jeep, L6, Set of 6

Part Number: SLP-H802CP30

5.0 out of 5 stars ( 4 )

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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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Piston Rings, Premium Ductile Ring Sets, Standard Size, 3.875 in. Bore, Plasma-moly, 5/64 in., 5/64 in., 3/16 in. Thickness, H6, L6, V6, Set of 6

Part Number: HSN-2M667

5.0 out of 5 stars ( 1 )

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Piston Rings, Cast Iron, 3.875 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 6-Cylinder, Set

Part Number: SLP-E-234X

5.0 out of 5 stars ( 2 )

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Piston Rings, Phosphate Coated, 3.875 in. Bore, 1.5mm, 1.5mm, 4.0mm Thickness, H6, L6, V6, Set

Part Number: HSN-4815

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Estimated Ship Date: Feb 23, 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: Mar 16, 2026 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 )

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Piston Set, 4.7 Jeep 6 Cyl. 1-FX Series -21cc Jeep Dish Top Piston Set. 3.905 bore

Part Number: DMS-1-6673-3905

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Estimated Ship Date: Feb 23, 2026 if ordered today

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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: Mar 16, 2026 if ordered today

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Pistons, Cast, Dish, 3.885 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, AMC, L6, Set of 6

Part Number: UEM-2229C-010

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Piston Rings, Premium Ductile Ring Sets, 0.030 in. Oversize, 3.905 in. Bore, Plasma-moly, 1.5mm, 1.5mm, 4.0mm Ring Thickness, H6, L6, V6, Set of 6

Part Number: HSN-2M4815030

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Estimated Ship Date: Feb 19, 2026 if ordered today

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

Part Number: UEM-2229C-STD

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Estimated Ship Date: Mar 16, 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: Apr 27, 2026 if ordered today

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Pistons, Hypereutectic, Dish, 3.875 in. Bore, Jeep, L6, Set of 6

Part Number: SLP-H825CP

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Feb 23, 2026 if ordered today

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