Pistons & Piston Rings

ProX Piston Kit KX450 '19-22 12.5:1 (95.99mm)

Part Number: PXR-01-4429-C

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Estimated Ship Date: Feb 27, 2026 if ordered today

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Piston Pin Lock Rings, Round Wire, 0.748 in. Pin, Pair

Part Number: WIS-CW19

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Piston and Ring Kit, Forged Aluminum, 87.500mm Bore, Yamaha, Kit

Part Number: WIS-4674M08750

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.218 in. Bore, Harley-Davidson®, 8.20;1 Compression Ratio, Kit

Part Number: UEM-KB292-030

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Estimated Ship Date: Mar 16, 2026 if ordered today

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ProX Piston Kit CRF250R '10-13 13.2:1 "ART" (76.77mm)

Part Number: PXR-01-1342-A

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Estimated Ship Date: Feb 27, 2026 if ordered today

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Piston Set, KB Forged Coated Piston - Shovelhead Hemi Dome -58.2cc 88-98ci 1948-84 ROD -7.440

Part Number: UEM-KB930C010

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Estimated Ship Date: Mar 16, 2026 if ordered today

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ProX Piston Kit YZ400F '98-99/WR400F '98-00 12.5:1 (91.96mm)

Part Number: PXR-01-2419-B

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Piston and Ring Kit, Hypereutectic, 3.528 in. Bore, Harley-Davidson®, 7.20;1 Compression Ratio, Kit

Part Number: UEM-KB288-030

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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®, 8.80:1 Compression Ratio, Kit

Part Number: UEM-KB410-STD

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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-KB288-005

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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®, 7.20;1 Compression Ratio, Kit

Part Number: UEM-KB288-010

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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®, 7.20;1 Compression Ratio, Kit

Part Number: UEM-KB288-STD

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 16, 2026 if ordered today

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Engine Piston, Kawasaki EX300 Ninja '13-17 12.5:1 CR

Part Number: WIS-40219M06600

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Estimated Ship Date: Mar 2, 2026 if ordered today

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ProX Piston Kit Yam Wolverine RMAX2/4 '21-22

Part Number: PXR-01-2921-B

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Estimated Ship Date: Feb 27, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.503 in. Bore, Harley-Davidson®, 9.10;1 Compression Ratio, Kit

Part Number: UEM-KB264-005

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Piston Wrist Pin Retainers, Retaining Clips, Wire Lock Type, Steel, 0.039 in. Thickness, 0.551 in. Wrist Pin Diameter, for use on Honda®, KTM, Pair

Part Number: WIS-CW14

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Piston and Ring Kit, Forged Aluminum, 53.000mm Bore, Yamaha, Kit

Part Number: WIS-235M05300

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Piston Wrist Pin Retainers, Retaining Clips, Wire Lock Type, Steel, 0.063 in. Thickness, 0.827 in. Wrist Pin Diameter, Kawasaki, Polaris, Yamaha, Pair

Part Number: WIS-CW28

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 2, 2026 if ordered today

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Piston Wrist Pin Retainers, Retaining Clips, Wire Lock Type, Steel, 0.039 in. Thickness, 0.630 in. Wrist Pin Diameter, for use on Honda®, KTM, Pair

Part Number: WIS-CW16

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Piston Pin, Steel, Tapered, 15.00mm x 47.00mm, Each

Part Number: WIS-S632

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Piston Pin, Steel, Tapered, 15.00mm x 41.00mm, Kawasaki, Each

Part Number: WIS-S635

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Estimated Ship Date: Mar 2, 2026 if ordered today

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ProX Piston Kit CR125 '88-91 (53.93mm)

Part Number: PXR-01-1208-A

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Estimated Ship Date: Feb 27, 2026 if ordered today

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ProX Piston Kit KX100 '95-13 (52.45mm)

Part Number: PXR-01-4195-A

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Estimated Ship Date: Feb 27, 2026 if ordered today

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ProX Piston Pin 15 x 45.00mm KTM125

Part Number: PXR-04-1545

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Estimated Ship Date: Feb 27, 2026 if ordered today

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Powersports Thrust Washers, Crankshaft, Copper, for use on Honda®, KTM, Polaris, Each

Part Number: PXR-03W-35551-0

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Estimated Ship Date: Feb 27, 2026 if ordered today

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