Pistons & Piston Rings

Piston and Ring Kit, Forged, 4.125 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB918C-STD

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Estimated Ship Date: Mar 6, 2026 if ordered today

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Engine Piston, Yamaha YZ125 '85 2244CS

Part Number: WIS-521M05700

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Estimated Ship Date: Feb 23, 2026 if ordered today

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4.560 1/16 1/16 3/16 8CYL

Part Number: TSR-CR9130

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Estimated Ship Date: Feb 9, 2026 if ordered today

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

Part Number: TSR-CR9090-20

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Estimated Ship Date: Feb 10, 2026 if ordered today

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Pistons, Hypereutectic, 3.917 in. Bore, Dish, 1.200 in. Compression Height, Floating Pin, 1.2mm x 1.2mm x 2.0mm Ring Grooves, Subaru, Set of 4

Part Number: UEM-9145HCASTD

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Estimated Ship Date: Mar 6, 2026 if ordered today

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Piston Rings, Plasma-moly, 4.020 in. Bore, 1/16 in. 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: JEP-S100S8-40205

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 16, 2026 if ordered today

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Pistons, Cast, Flat, 3.935 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Small Block, Set of 8

Part Number: UEM-1412-060

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Estimated Ship Date: Mar 6, 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 6, 2026 if ordered today

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Piston Rings, Plasma-moly, 4.125 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-R58795

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Estimated Ship Date: Feb 13, 2026 if ordered today

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Pistons, Hypereutectic, Dish, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Set of 8

Part Number: UEM-3165HC-030

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Estimated Ship Date: Mar 5, 2026 if ordered today

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Piston Rings, Plasma-moly, 4.562 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR9130-5

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Piston Rings, Performance Series, 4.145 in. Bore, 1/16 in., 1/16 in., 3/16 in., 8-Cylinder, Set

Part Number: MLE-4145MS

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

Part Number: HSN-2M5515

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Estimated Ship Date: Feb 12, 2026 if ordered today

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

Part Number: HSN-4394020

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Estimated Ship Date: Feb 12, 2026 if ordered today

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Pistons, Cast, Dish, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Small Block, Set of 8

Part Number: UEM-1470-STD

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Estimated Ship Date: Mar 6, 2026 if ordered today

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Pistons, Hypereutectic, Dish, 102.6mm Bore, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Chevy, Set of 8

Part Number: UEM-3473HC-1-0MM

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Estimated Ship Date: Mar 5, 2026 if ordered today

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TP-1 Wrist Pin

Part Number: TPD-S0352

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Estimated Ship Date: Feb 26, 2026 if ordered today

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Pistons, Professional Series, Forged Aluminum, Dish, 4.075 in. Bore, Rings Included, Right Side, Stroked, Chevy, Gen V, Small Block, LT1, Each

Part Number: WIS-60234RX1

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Pistons, Cast, Dish, 93.75mm Bore, 1.6mm, 1.75mm, 3.5mm Ring Grooves, Ford, V6, Set of 6

Part Number: UEM-1199-75MM

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Estimated Ship Date: Mar 6, 2026 if ordered today

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Pistons, Professional Series, Forged Aluminum, Flat Top, 4.020 in. Bore, Stock Stroke, Rings Included, Left Side, Chevy, LS, Each

Part Number: WIS-60045LX2

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Pistons, Professional Series, Forged Aluminum, Flat Top, 4.020 in. Bore, Stock Stroke, Rings Included, Right Side, Chevy, LS, Each

Part Number: WIS-60045RX2

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

Part Number: HSN-2M5523025

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Estimated Ship Date: Feb 12, 2026 if ordered today

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Piston Rings, Plasma-Moly, 4.355 in. Bore, 1/16 in., 1/16 in., 3/16 in.Thickness, 8-Cylinder, Set

Part Number: SLP-R927835

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Piston and Ring Kit, Forged Aluminum, 47.000mm Bore, Honda®, Kit

Part Number: WIS-PK1269

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Piston Rings, Performance Series, 4.145 in. Bore, File Fit, 1.5mm, 1.5mm, 3.0mm, 8-Cylinder, Set

Part Number: MLE-4150MS-15

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Estimated Ship Date: Feb 13, 2026 if ordered today

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