HARLEY-DAVIDSON Engine Kits & Rotating Assemblies

S&S Cycle 66-84 3-7/16in x Up To 4-3/4in Stroke Cylinder Kit - Gloss Black

Part Number: SSY-91-9017

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Estimated Ship Date: Feb 27, 2026 if ordered today

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S&S Cycle 66-84 BT 98in 3-5/8in Big Bore Cylinder & Piston Kit For S&S SH98 Engines - Gloss Black

Part Number: SSY-91-9201

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Estimated Ship Date: Feb 27, 2026 if ordered today

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S&S Cycle 66-84 BT 96in 3-5/8in Big Bore Cylinder & Piston Kit For S&S SH96 Engines - Gloss Black

Part Number: SSY-91-9401

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Estimated Ship Date: Feb 27, 2026 if ordered today

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S&S Cycle 84-99 BT 96in Sidewinder Big Bore Stroker Kit - Natural

Part Number: SSY-91-7660

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Estimated Ship Date: Feb 27, 2026 if ordered today

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S&S Cylinder 84-99 BT w/Super Stock Cylinder Heads 89in 3 1/2in Bore Cylinder & Piston Kit - Wblack

Part Number: SSY-91-7711

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Estimated Ship Date: Feb 27, 2026 if ordered today

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S&S Cycle 79-84 BT 88in Sidewinder 3-5/8in Big Bore Cylinder Kit - Gloss Black

Part Number: SSY-91-9001

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Estimated Ship Date: Feb 27, 2026 if ordered today

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S&S Cycle 66-84 BT 80in 3-1/2in Bore Cylinder and High Compression Piston Kit

Part Number: SSY-91-9023

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Estimated Ship Date: Feb 27, 2026 if ordered today

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S&S Cycle 84-99 BT w/ Stock Heads 3-1/2in Bore Cylinder & Piston Kit - Natural

Part Number: SSY-910-0179

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Estimated Ship Date: Feb 27, 2026 if ordered today

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S&S Cycle 99-06 BT 4-1/8in Bore Cylinder & Piston Kit - Silver

Part Number: SSY-910-0215

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Estimated Ship Date: Feb 27, 2026 if ordered today

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S&S Cycle 66-84 BT 3-31/32in Stroke 3-7/16in Bore 8.0 To 1 Compression Cylinder Kit - Gloss Black

Part Number: SSY-91-9013

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Estimated Ship Date: Feb 27, 2026 if ordered today

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S&S Cycle 00-21 Sportster Models 1200cc to 1250cc Hooligan Kit - Silver

Part Number: SSY-910-0702

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Estimated Ship Date: Mar 2, 2026 if ordered today

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PERFORMANCE, 131" KIT - HIGHLIGHTED FINS M8

Part Number: SSY-910-0762

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Estimated Ship Date: Feb 27, 2026 if ordered today

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Flywheel, 99-06 TWIN CAM (EXC 06 DYNA), FLYWHEELS ASSEMBLY A MOTOR

Part Number: SSY-320-0403

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Estimated Ship Date: Feb 27, 2026 if ordered today

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ENGINE PERFORMANCE, 99-06 BIG TWIN 124" 4-1/8" BORE, CYLINDER SET 4-1/8" BORE 124"

Part Number: SSY-910-0255

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Estimated Ship Date: Feb 27, 2026 if ordered today

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ENGINE PERFORMANCE, 124" 4-1/8" BORE, CYLNDR ST 4-1/8" BR 124"

Part Number: SSY-910-0401

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Estimated Ship Date: Feb 27, 2026 if ordered today

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ENGINE PERFORMANCE, 17-18 M8 MODELS, BIG BORE CYLINDER SET BLK

Part Number: SSY-910-0682

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Estimated Ship Date: Feb 27, 2026 if ordered today

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ENGINE PERFORMANCE, 17-18 M8 MODELS, BIG BORE CYLINDER SET BLK

Part Number: SSY-910-0683

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Estimated Ship Date: Feb 27, 2026 if ordered today

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ENGINE PERFORMANCE, M8 MODELS W/114", 128" BIG BORE KIT M8 BLK

Part Number: SSY-910-0684

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Estimated Ship Date: Feb 27, 2026 if ordered today

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CRANKSHAFT, FLYWHEEL ASSY W/O SPROCKET SHA

Part Number: SSY-320-0417

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Estimated Ship Date: Feb 27, 2026 if ordered today

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CRANKSHAFT, M8 FLYWHEEL 4-1/2" TAPERED

Part Number: SSY-320-0598

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Estimated Ship Date: Feb 27, 2026 if ordered today

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CRANKSHAFT, M8 FLYWHEEL 4-3/8" TAPERED

Part Number: SSY-320-0601

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Estimated Ship Date: Feb 27, 2026 if ordered today

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CRANKSHAFT, M8 FLYWHEEL 4-1/2" FULL

Part Number: SSY-320-0603

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Estimated Ship Date: Feb 27, 2026 if ordered today

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CRANKSHAFT, M8 FLYWHEEL 4-3/8" FULL

Part Number: SSY-320-0604

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Estimated Ship Date: Feb 27, 2026 if ordered today

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CRANKSHAFT, M8 FLYWHEEL 4-5/8" FULL

Part Number: SSY-320-0605

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Estimated Ship Date: Feb 27, 2026 if ordered today

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PISTONS, S&S 106" BIG BORE HOT SETUP KT

Part Number: SSY-900-0354

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Estimated Ship Date: Feb 27, 2026 if ordered today

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