Pistons & Piston Rings

Piston Rings, Premium Ductile Ring Sets, 0.030 in. Oversize, 4.280 in. Bore, Plasma-moly, 5/64 in., 5/64 in., 3/16 in. Ring Thickness, L8/V8, Set of 8

Part Number: HSN-2M4718030

1.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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

Not Yet Reviewed

Estimated Ship Date: Today

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

Part Number: HSN-2M577030

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Piston Rings, Performance Series, 4.375 in. Bore, File Fit, 1/16 in., 1/16 in., 3/16 in., 8-Cylinder, Set

Part Number: MLE-4380MS

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Piston Rings, Piston Ring Sets, Phosphate Coated, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, L8, V8, Set of 8

Part Number: HSN-5615

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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

Part Number: HSN-2M5662S040

Not Yet Reviewed

Estimated Ship Date: Today

Piston Rings, Premium Ductile Ring Sets, Plasma-moly, 3.898 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, for Single Piston, Set

Part Number: HSN-2M4897S

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Piston Rings, Premium Ductile Ring Sets, 0.030 in. Oversize, 4.070 in. Bore, Plasma-moly, 5/64 in., 5/64 in., 3/16 in. Thickness, L8, V8, Set of 8

Part Number: HSN-2M694030

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Piston Rings, Premium Ductile Ring Sets, Plasma-moly, 4.020 in. Bore, 1.2mm, 1.5mm, 2.5mm Thickness, Each

Part Number: HSN-2M5170S020

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Estimated Ship Date: Today

Ring Compressor, Aluminum, Black Anodized, Non-Adjustable, 4.185 in., Each

Part Number: TSR-RC4185

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Piston Rings, Plasma-moly, 3.661 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: HSN-2M4790

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 19, 2025 if ordered today

• Special Order

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-326S43780-7F

Not Yet Reviewed

Estimated Ship Date: Today

Ring Compressor, Aluminum, Black Anodized, Non-Adjustable, 4.310 in., Each

Part Number: TSR-RC4310

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Piston Rings, Moly, 3.915 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-E-245K40

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Estimated Ship Date: Today

Piston Rings, 4.030 in. Bore, 1/16 in., 1/16 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4000BM8-030

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Free Shipping

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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Estimated Ship Date: Today

Piston Rings, Moly, 3.790 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 6-Cylinder, Set

Part Number: SLP-E-222K40

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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 )

Estimated Ship Date: Today

Engine Piston Ring Set, 6-Cyl Ring Set; Phosphate

Part Number: HSN-4394020

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Piston Rings, Phosphate Coated, 4.080 in. Bore, 5/64 in., 3/32 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: HSN-574030

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Estimated Ship Date: Today

Piston Rings, Premium Ductile Ring Sets, Plasma-moly, 4.000 in. Bore, 1.2mm, 1.2mm, 2.5mm Thickness, L2, V2, Set

Part Number: HSN-2M5299

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock

Part Number: SUM-299S274065-2

Not Yet Reviewed

Estimated Ship Date: Today

Piston Rings, Premium Ductile Ring Sets, Plasma-moly, 4.181 in. Bore, 5/64 in., 1/16 in., 3/16 in. Thickness, L8, V8, Set of 8

Part Number: HSN-2M643030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 19, 2025 if ordered today

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Piston, PIST-HEMI 6.1/DISHED/4.080 COA

Part Number: MAN-598680PC-1

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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• Special Order