1991 FORD Pistons & Piston Rings

Piston Rings, Premium Ductile Ring Sets, 0.030 in. Oversize, 4.030 in. Bore, Plasma-moly, 1.5mm, 1.5mm, 4.0mm Ring Thickness, L8, V8, Set of 8

Part Number: HSN-2M4726030

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Piston Rings, Moly, 4.040 in. Bore, 1.5mm, 1.5mm, 4.0mm Thickness, 8-Cylinder, Set

Part Number: SLP-E-458K40

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Pistons, E-Series, Forged, Flat, 4.040 in. Bore, Ford, Set of 8

Part Number: DMS-8750-4040

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Piston With Rings - NAVI 7.3L IDI DIESEL V8 "T" (030) W/PCR

Part Number: MAH-2242908WR030

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Estimated Ship Date: May 27, 2026 if ordered today

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Pistons, Hypereutectic, Dish, 4.420 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Set of 8

Part Number: UEM-KB152-060

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Estimated Ship Date: Jun 1, 2026 if ordered today

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Pistons, SX-Series, Forged, Dish, 4.040 in. Bore, Ford, Set of 8

Part Number: DMS-8873-4040

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Estimated Ship Date: May 11, 2026 if ordered today

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Pistons, Hyperuetectic, Dish, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Set of 6

Part Number: UEM-1186H-STD

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Piston Rings, Piston Ring Sets, Standard Size, 4.000 in. Bore, Phosphate Coated, 1.5mm, 1.5mm, 4.0mm Ring Thickness, L8, V8, Set of 8

Part Number: HSN-4726

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Pistons, Forged, Flat, 4.040 in. Bore, Ford, Lincoln, Mercury, Set of 8

Part Number: SLP-L2482F40

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Pistons, Hypereutectic, Dish, 4.030 in. Bore, Ford, Mercury, Set of 8

Part Number: SLP-H653CP30

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Piston and Ring Kit, Forged, 4.125 in. Bore, Ford, Kit

Part Number: MLE-930244825

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Pistons, Hypereutectic, Dome, 4.030 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Ford, Set of 8

Part Number: UEM-KB365-030

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Estimated Ship Date: Jun 1, 2026 if ordered today

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Piston Rings, Phosphate Coated, 4.059 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: HSN-139060

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Piston Rings, Premium Ductile Ring Sets, 0.030 in. Oversize, 4.030 in. Bore, Plasma-moly, 5/64 in., 5/64 in., 3/16 in. Thickness, H6, L6, V6, Set of 6

Part Number: HSN-2M592030

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Piston Rings, Premium Ductile Ring Sets, Plasma-moly, 4.030 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, L8, V8, Set of 8

Part Number: HSN-2M8542030

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Pistons, Hypereutectic, Flat, 4.020 in. Bore, Ford, Mercury, Set of 8

Part Number: SLP-H336CP20

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Forged Pro pistons 347 stroker Windsor, 4.040 bore, 1.090 C.H., 3.4 in. stroke, 5.400 rod, 5cc flat top Inline and Twisted Wedge, 10.5@60cc, 10:1@64cc

Part Number: SUM-SBF347040

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Pistons, Hypereutectic, Dish, 4.000 in. Bore, Ford, Lincoln, Mercury, Set of 8

Part Number: SLP-H654CP

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Piston Rings, Moly, 4.380 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-E-296K20

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Piston, SX Series, Forged, Dish Top, 4.030 in. Bore, Ford, Set of 8

Part Number: DMS-8883-4030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 11, 2026 if ordered today

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Piston Rings, Piston Ring Sets, Phosphate Coated, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, for Single Piston, Set

Part Number: HSN-139S030

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Pistons, Hypereutectic, Flat, 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Set of 8

Part Number: UEM-KB151-060

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Piston Rings, Premium Ductile Ring Sets, Plasma-moly, 4.000 in. Bore, 1.5mm, 1.5mm, 4.0mm Thickness, L8, V8, Set of 8

Part Number: HSN-2M4346

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PISTON KIT

Part Number: DMS-K8720-4030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 11, 2026 if ordered today

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Piston Rings, Premium Ductile Ring Sets, Plasma-moly, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, for Single Piston, Set

Part Number: HSN-2M139S

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