FORD 6.6L/400 Pistons & Piston Rings

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

Part Number: HSN-CM5532S030

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Piston Rings, Piston Ring Sets, Phosphate Coated, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, for Single Piston, Set

Part Number: HSN-139S

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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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Engine Piston Ring Set, 8-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M5508045

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Estimated Ship Date: May 8, 2026 if ordered today

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Piston Rings, Standard Piston Ring Sets, Cast Iron, 4.020 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, V8, Set

Part Number: MAH-50564CP020

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Engine Piston Ring Set, 8-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M5540030

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Estimated Ship Date: May 7, 2026 if ordered today

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Pistons, AutoTec SBF, 4.03, 4, Flat Top 6.58, 0.975, SBF 351M/401, Sold as a set of 8.

Part Number: PIS-1000773

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Estimated Ship Date: Jun 9, 2026 if ordered today

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Piston Rings, Chrome, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-E-251KC

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

Part Number: HSN-2M8521S005

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Piston Rings, Premium Ductile Ring Sets, 0.065 in. Oversize, 4.065 in. Bore, Plasma-moly, 5/64 in., 5/64 in., 3/16 in. Thickness, L8, V8, Set of 8

Part Number: HSN-2M5508065

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Estimated Ship Date: May 8, 2026 if ordered today

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Piston Rings, Moly, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, One Cylinder Set

Part Number: SLP-WE-251K-30

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

Engine Piston Ring Set, 8-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M5508060

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Estimated Ship Date: May 7, 2026 if ordered today

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Piston Set, 400M SBF 400M K1-FX Series -13cc Dish Top Boss/Canted Piston Set. 4.040 bore

Part Number: DMS-K1-3971-4040

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Estimated Ship Date: May 11, 2026 if ordered today

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Piston Set, 400M SBF 400M K1-FX Series -13cc Dish Top Boss/Canted Piston Set. 4.000 bore

Part Number: DMS-K1-3971-4000

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Estimated Ship Date: May 11, 2026 if ordered today

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Piston Set, 400M SBF 400M K1-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.060 bore

Part Number: DMS-K1-3970-4060

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Estimated Ship Date: May 11, 2026 if ordered today

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Piston Set, 400M SBF 400M K1-FX Series -13cc Dish Top Boss/Canted Piston Set. 4.060 bore

Part Number: DMS-K1-3971-4060

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Estimated Ship Date: May 11, 2026 if ordered today

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Piston Rings, Plasma-moly, 4.010 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: HSN-2M139010

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Engine Piston Ring Set 53-94 AMC/BUI/CAD/CHV/CHR/DOD/FRD/GM/GMC/JEP/LIN/MER/OLD/PLY/PON 4.3L/4.7L/4.9L/5.0L/5.3L/5.7L/5.8L/5.9L/6.0L/6.4L/6.6L

Part Number: EGN-R40058030

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Estimated Ship Date: May 15, 2026 if ordered today

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Engine Piston Ring Set, 8-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M5540035

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Estimated Ship Date: May 7, 2026 if ordered today

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Piston Rings, Premium Ductile Ring Sets, 0.040 in. Oversize, 4.039 in. Bore, Plasma-moly, 5/64 in., 5/64 in., 3/16 in. Thickness, L8, V8, Set of 8

Part Number: HSN-2M5508040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 8, 2026 if ordered today

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Piston Rings, Claimer Series Performance Ring Sets, 0.040 in. Oversize, 4.039 in. Bore, Plasma-moly, 1/16 in., 1/16 in., 3/16 in., L8, V8, Set of 8

Part Number: HSN-CM5532040

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Estimated Ship Date: May 7, 2026 if ordered today

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Engine Piston Ring Set 53-03 AMC/BUI/CAD/CHV/CHR/DOD/FRD/GM/GMC/JEP/LIN/MER/OLD/PLY/PON

Part Number: EGN-M40058STD

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Estimated Ship Date: May 14, 2026 if ordered today

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Piston Rings, Moly, 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: MAH-40451060

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Piston Rings, Moly, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: MAH-40451

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Piston Rings, Phosphate Coated, 4.020 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: HSN-139020

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today