Pistons, Rings, Wrist Pins, Bushings & More

k1-2478-4185-434-small-block-chevy-k1-fx-series-4cc-dome-top-forged-piston-set-4-185-bore

Part Number: DMS-K1-2478-4185

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Estimated Ship Date: Oct 27, 2025 if ordered today

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

Part Number: UEM-4000AM8-030

4.9 out of 5 stars ( 10 )

Estimated Ship Date: Today

Pistons, Forged, Dished, 4.125 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Ford, 351, Cleveland, Set of 8

Part Number: TFS-51604330-125

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

Part Number: SLP-E-301K

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

Part Number: SLP-H654CP30

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Piston & Ring Set, 1 Set IC9992C.030/1 Set 4000CS8.030

Part Number: UEM-S00202

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Piston and Ring Kit, Forged, Dome, 4.030 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-IC803KTD-030

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Estimated Ship Date: Nov 14, 2025 if ordered today

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Piston Rings, Plasma-moly, 4.040 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-R990240

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Pistons, Hypereutectic, Dish, 4.030 in. Bore, Chevy, Set of 8

Part Number: SLP-H859CP30

4.8 out of 5 stars ( 5 )

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Piston Rings, Plasma-moly, 4.155 in. Bore, 1/16 in. 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: JEP-S100S841555

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Pistons, Cast, Dish, 4.110 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, AMC, V8, Set of 8

Part Number: UEM-2225C-030

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Piston Rings, Plasma-Moly, 4.125 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, Set

Part Number: JEP-S100S8-41255

5.0 out of 5 stars ( 1 )

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Piston Rings, Plasma-Moly, Standard Gap, 4.280 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SLP-R990430

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Piston Rings, Plasma-moly, 4.375 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR9190-125

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Piston Wrist Pin Retainer, Spirolox, Steel, Set of 32

Part Number: HRS-HRC4500

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Piston Rings, Performance, Plasma-moly, 4.030 in. Bore, 1.0mm, 1.0mm, 2.0mm Thickness, Single Piston Ring Set, V8, Set

Part Number: MLE-4035MS-112-1

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Piston Rings, Premium Ductile Ring Sets, 0.040 in. Oversize, 4.165 in. Bore, Plasma-moly, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set of 8

Part Number: HSN-2M5529040

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Piston Rings, Performance Series, 4.155 in. Bore, File Fit, 1/16 in., 1/16 in., 3/16 in., 8-Cylinder, Set

Part Number: MLE-4160MS

5.0 out of 5 stars ( 1 )

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Piston Rings, Performance Series, 4.010 in. Bore, File Fit, 1.5mm, 1.5mm, 3.0mm, 8-Cylinder, Set

Part Number: MLE-4015MS-15

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Piston Rings, Plasma-moly, 4.000 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: TSR-CRH2010-5

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Piston Rings, Pro GPX Gas Ported, 4.625 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set

Part Number: SUM-GP462543

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Pistons, Cast, Dish, 3.780 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, AMC, V8, Set of 8

Part Number: UEM-2234-030

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Pistons, Hypereutectic, Flat, 4.165 in. Bore, Chevy, Set of 8

Part Number: SLP-H400CP40

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Piston Rings, Plasma-moly, 4.155 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR0690-30

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4.130 in. Bore, Auto Ring Set- 1 cyl.

Part Number: WIS-4132GFX

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