2013 Pistons & Piston Rings

ProX Piston Kit YZ250 '99-22 + RM250 '03-12 (66.35mm)

Part Number: PXR-01-2321-A

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Piston, Forged, Dome, 2-Valve Reliefs, 4.030 in. Bore, 3.622 in. Stroke, 6.125 in. Rod, 1.304 in. Compression, Chevy, Left, Each

Part Number: JEP-312095L

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Estimated Ship Date: Feb 24, 2026 if ordered today

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Piston, Forged, Dome, 2-Valve Reliefs, 4.030 in. Bore, 3.622 in. Stroke, 6.125 in. Rod, 1.304 in. Compression, Chevy, Right, Each

Part Number: JEP-312095R

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Estimated Ship Date: Feb 24, 2026 if ordered today

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Piston, Forged, Flat Top, 2-Valve Reliefs, 4.065 in. Bore, 4.000 in. Stroke, 6.125 in. Rod, 1.110 in. Compression, Chevy, Left, Each

Part Number: JEP-361031L

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Estimated Ship Date: Feb 24, 2026 if ordered today

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Piston, Forged, Flat Top, 2-Valve Reliefs, 4.065 in. Bore, 4.000 in. Stroke, 6.125 in. Rod, 1.110 in. Compression, Chevy, Right, Each

Part Number: JEP-361031R

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Estimated Ship Date: Feb 24, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.503 in. Bore, Harley-Davidson®, 10.00;1 Compression Ratio, Kit

Part Number: UEM-KB272-005

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Estimated Ship Date: Mar 16, 2026 if ordered today

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PISTON KIT HARLEY DAVIDSON

Part Number: UEM-KB935C-STD

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Piston and Ring Kit, Forged, 4.155 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB918C-030

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.503 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB414-005

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.508 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB414-010

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.518 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB414-020

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.528 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB414-030

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.538 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB414-040

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.498 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB414-STD

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.508 in. Bore, Harley-Davidson®, 10.00;1 Compression Ratio, Kit

Part Number: UEM-KB272-010

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, Dish, 3.528 in. Bore, Harley-Davidson®, V2, Kit

Part Number: UEM-KB272-030

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.528 in. Bore, Harley-Davidson®, 10.00;1 Compression Ratio, Kit

Part Number: UEM-KB272-040

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Pistons, Premium, Forged 4032 Aluminum, 4.005 in. Bore, 3.622 in. Stroke, Flat Top, Chevy, LS, Each

Part Number: UEM-SIC672C-005

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Pistons, Premium, Forged 4032 Aluminum, 4.010 in. Bore, 3.622 in. Stroke, Flat Top, Chevy, LS, Each

Part Number: UEM-SIC672C-010

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Piston and Ring Kit, Forged Aluminum, 99.000mm Bore, Polaris, Kit

Part Number: WIS-40105M09900

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Estimated Ship Date: Mar 4, 2026 if ordered today

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Piston and Ring Kit, Forged Aluminum, 74.000mm Bore, Yamaha, Kit

Part Number: WIS-4951M07400

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Estimated Ship Date: Mar 4, 2026 if ordered today

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Piston and Ring Kit, Forged, 3.503 in. Bore, Harley-Davidson®, 9.00:1 Compression Ratio, Kit

Part Number: UEM-KB922C-005

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Piston and Ring Kit, Forged, 3.508 in. Bore, Harley-Davidson®, 9.00:1 Compression Ratio, Kit

Part Number: UEM-KB922C-010

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Piston and Ring Kit, Forged, 3.528 in. Bore, Harley-Davidson®, 9.00:1 Compression Ratio, Kit

Part Number: UEM-KB922C-030

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Piston and Ring Kit, Forged, 3.498 in. Bore, Harley-Davidson®, 9.00:1 Compression Ratio, Kit

Part Number: UEM-KB922C-STD

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Estimated Ship Date: Mar 16, 2026 if ordered today

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