Pistons & Piston Rings

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

Part Number: WIS-4674M08750

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Estimated Ship Date: Dec 30, 2025 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: Dec 31, 2025 if ordered today

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Pistons, Aluminum, Shovelhead Engine, 3.625 in. Bore, Harley-Davidson®, Pair

Part Number: UEM-KB928C-020

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 16, 2026 if ordered today

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Piston Set, KB Forged Coated Piston - Shovelhead Hemi Dome -42.3cc 88-98ci 1948-84 ROD -7.440

Part Number: UEM-KB928CSTD

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Estimated Ship Date: Jan 15, 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, Cast Iron Rings, Harley-Davidson®, Kit

Part Number: UEM-KB305-030

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Estimated Ship Date: Dec 29, 2025 if ordered today

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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: Jan 16, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.503 in. Bore, Harley-Davidson®, 10.50;1 Compression Ratio, Kit

Part Number: UEM-KB266-005

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Estimated Ship Date: Jan 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: Jan 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: Jan 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: Jan 16, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.498 in. Bore, Cast Iron Rings, Harley-Davidson®, Kit

Part Number: UEM-KB305-STD

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Estimated Ship Date: Jan 16, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.528 in. Bore, Harley-Davidson®, 10.50;1 Compression Ratio, Kit

Part Number: UEM-KB266-030

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Estimated Ship Date: Jan 15, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.518 in. Bore, Harley-Davidson®, 8.30:1 Compression Ratio, Kit

Part Number: UEM-KB297-020

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 15, 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: Jan 5, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.503 in. Bore, Harley-Davidson®, 8.60;1 Compression Ratio, Kit

Part Number: UEM-KB258-005

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Estimated Ship Date: Jan 15, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.528 in. Bore, Harley-Davidson®, 8.60;1 Compression Ratio, Kit

Part Number: UEM-KB258-030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 15, 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: Dec 31, 2025 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: Jan 16, 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: Jan 15, 2026 if ordered today

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ProX Piston Kit Gas-Gas MX/EC/XC250 '97-19 (66.35mm)

Part Number: PXR-01-7307-C

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Estimated Ship Date: Dec 31, 2025 if ordered today

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Piston and Ring Kit, Forged Aluminum, 67.000mm Bore, Yamaha, Kit

Part Number: WIS-471M06700

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Estimated Ship Date: Dec 29, 2025 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: Jan 5, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.885 in. Bore, Indian, 9.80:1 Compression Ratio, Kit

Part Number: UEM-KB412-010

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Estimated Ship Date: Dec 29, 2025 if ordered today

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ROUND WIRE PIN LOCKS 17MM (PAIR)

Part Number: WIS-CW17

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Estimated Ship Date: Jan 5, 2026 if ordered today

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