HARLEY-DAVIDSON FXDF FAT BOB Pistons & Piston Rings

Piston Rings, Premium Ductile Ring Sets, Plasma-moly, 4.000 in. Bore, 1.2mm, 1.2mm, 2.5mm Thickness, L2, V2, Set

Part Number: HSN-2M5299

5.0 out of 5 stars ( 1 )

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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: Dec 23, 2026 if ordered today

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Piston Set, Super Duty KB Forged Piston - Twin Cam 96 Big Bore Flat Top +1.9cc (103ci) 2007 To Present Rod -7.667

Part Number: UEM-KB908LCA005

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Estimated Ship Date: Dec 23, 2026 if ordered today

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Piston and Ring Kit, Forged, 4.130 in. Bore, Harley-Davidson®, 9.50:1 Compression Ratio, Kit

Part Number: UEM-KB916C-005

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Piston and Ring Kit, Forged, 4.020 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB914C-020

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Piston and Ring Kit, Forged, 4.000 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB915C-STD

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Estimated Ship Date: Dec 23, 2026 if ordered today

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Engine Piston Ring Set, 2-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4805

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Estimated Ship Date: Dec 1, 2026 if ordered today

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Piston Rings, Gas Nitrided, 3.875 in. Bore, Harley-Davidson®, Set

Part Number: WIS-3875VM

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Estimated Ship Date: Dec 14, 2026 if ordered today

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Engine Piston Ring Set, 1-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M5080010

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Piston and Ring Kit, Bullet Series, Forged Aluminum Piston, Dome, 1.2mm Rings, Kit Includes One Piston and One Set of Rings, Harley-Davidson®, Kit

Part Number: CPD-BHM5017

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Piston and Ring Kit, Forged, 3.875 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB908C-STD

5.0 out of 5 stars ( 2 )

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Engine Piston Ring Set, 2-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M4805005

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Estimated Ship Date: Dec 1, 2026 if ordered today

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Piston and Ring Kit, Forged, 3.880 in. Bore, Harley-Davidson®, 9.50:1 Compression Ratio, Kit

Part Number: UEM-KB907C-005

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 23, 2026 if ordered today

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Engine Piston Set, Tracker Series HD TC96-103cid 10.5:1 CR

Part Number: WIS-K0210P1

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Estimated Ship Date: Dec 14, 2026 if ordered today

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Piston and Ring Kit, Forged, 4.010 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB915C-010

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Estimated Ship Date: Dec 23, 2026 if ordered today

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Engine Piston Ring Set, 2-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M5299020

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Estimated Ship Date: Nov 30, 2026 if ordered today

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Piston and Ring Kit, Forged, 4.030 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB915C-030

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Estimated Ship Date: Dec 23, 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: Dec 23, 2026 if ordered today

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Piston and Ring Kit, Forged, 4.005 in. Bore, Harley-Davidson®, 9.50:1 Compression Ratio, Kit

Part Number: UEM-KB913C-005

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Estimated Ship Date: Dec 23, 2026 if ordered today

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Piston and Ring Kit, Forged, 4.155 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB917C-030

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Estimated Ship Date: Dec 23, 2026 if ordered today

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Piston and Ring Kit, Forged, 4.145 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB918C-020

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Estimated Ship Date: Dec 23, 2026 if ordered today

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Piston Rings, Gas Nitrided, 4.125 in. Bore, Harley-Davidson®, Set

Part Number: WIS-4125VM

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Estimated Ship Date: Dec 14, 2026 if ordered today

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Piston Rings, Chrome, 3.937 in. Bore, Harley-Davidson®, Set

Part Number: WIS-10000XY

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Estimated Ship Date: Dec 14, 2026 if ordered today

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Piston Pin, Steel, Chrome, Straight, 23.55mm x 57.15mm, Harley-Davidson®, Each

Part Number: WIS-S594

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Estimated Ship Date: Dec 14, 2026 if ordered today

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Piston and Ring Kit, Forged, 4.135 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB917C-010

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Estimated Ship Date: Dec 23, 2026 if ordered today

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