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HARLEY-DAVIDSON Engine Kits & Rotating Assemblies

Individual Parts

Part Groups

Results 1 - 25 of 193

S&S Cycle 883 to 1200cc Hooligan Cylinder Kits 910-0700

S&S Cycle 00-21 Sportster Models 883cc to 1200cc Hooligan Kit - Silver

Part Number: SSY-910-0700

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

S&S Cycle 124 in. Hot Set-Up Cylinder Kits 910-0338

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

Part Number: SSY-910-0338

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

S&S Cycle 4 in. Sidewinder Big Bore Kits 910-0651

Top End Engine Kit, Sidewinder Big Bore, Black Wrinkle Finish, 4 in., Forged Piston, Harley-Davidson®, Kit

Part Number: SSY-910-0651

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

S&S Cycle 98 in. Big Bore Kits 910-0481

S&S 98 BIG BORE KIT BLK

Part Number: SSY-910-0481

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

S&S Cycle 107 in. Big Bore Kits 910-0500

Big Bore Kit, 107 in., Drop-In, 3.937 in. Bore, Wrinkle Black Cylinders with Highlighted Fins, Harley-Davidson®, Kit

Part Number: SSY-910-0500

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

S&S Cycle M8 Big Bore Cylinders 910-0740

S&S Cycle 2017+ M8 Models 4.250in Bore Unhoned Front Cylinder - Black Granite w/ Highlight

Part Number: SSY-910-0740

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

S&S Cycle M8 131 in. Big Bore Kits 910-0763

PERFORMANCE, 131" KIT - BLACK FINS M8

Part Number: SSY-910-0763

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

S&S Cycle M8 124 in. Big Bore Kits 910-0625

Top End Engine Kit, M8 124 in. Big Bore, Wrinkle Black Finish with Highlighted Fins, 4.250 in., Forged Piston, Harley-Davidson®, Kit

Part Number: SSY-910-0625

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

S&S Cycle 883 to 1200cc Hooligan Cylinder Kits 910-0687

S&S Cycle 86-19 Sportster Models 883 to 1200cc Conversion Kit - Wrinkle Black

Part Number: SSY-910-0687

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

S&S Cycle 1200cc to 1250cc Hooligan Cylinder Kits 910-0701

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

Part Number: SSY-910-0701

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

S&S Cycle 883 to 1200cc Hooligan Cylinder Kits 910-0699

S&S Cycle 00-21 Sportster Models 883cc to 1200cc Hooligan Kit - Wrinkle Black

Part Number: SSY-910-0699

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

S&S Cycle 93 in. Big Bore Cylinder Kits 91-9101

S&S Cycle 66-84 BT 93in Standard Compression 3-5/8in Big Bore Cylinder & Piston Kit - Gloss Black

Part Number: SSY-91-9101

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

S&S Cycle Twin Cam Cylinders 910-0565

1999+ BT 4.425in Bore Cylinder Set - Wrinkle Black

Part Number: SSY-910-0565

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

S&S Cycle M8 Big Bore Cylinders 910-0682A

2017 M8 Models 4.250 Bore w/ Highlight Big Bore Cylinder Set

Part Number: SSY-910-0682A

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

S&S Cycle M8 Flywheel Assemblies 320-0598

CRANKSHAFT, M8 FLYWHEEL 4-1/2" TAPERED

Part Number: SSY-320-0598

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

S&S Cycle 124 in. Big Bore/Stroker Hot Set-Up Kits 900-0569

124 HOT SET UP W/HEADS BLK

Part Number: SSY-900-0569

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

S&S Cycle 96 in. Sidewinder Big Bore Stroker Kits 91-7661

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

Part Number: SSY-91-7661

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

S&S Cycle M8 Flywheel Assemblies 320-0601

CRANKSHAFT, M8 FLYWHEEL 4-3/8" TAPERED

Part Number: SSY-320-0601

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

S&S Cycle Hot Set-Up Twin Cam Cylinders 910-0401

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

Part Number: SSY-910-0401

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

S&S Cycle 132 in. Power Packages with Chain Drive Cam 310-1231

S&S Cycle 2017 M8 132in Power Pack w/ Chrome Pushrod Tubes & Cam Chain Tensioners - Blk w/ Highlight

Part Number: SSY-310-1231

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

S&S Cycle M8 131 in. Big Bore Kits 910-0762A

2017+ M8 Models 4.250in Bore 4-5/8in Stroke Cylinder Kit - Wrinkle Black w/ Highlight

Part Number: SSY-910-0762A

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

S&S Cycle Flywheel Assemblies 320-0417

CRANKSHAFT, FLYWHEEL ASSY W/O SPROCKET SHA

Part Number: SSY-320-0417

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

S&S Cycle 128 in. Power Packages with Gear Drive Cam 310-1102A

S&S Cycle 2017+ M8 Models 4.250in Bore 550G Cam w/ Chrome Pushrods Power Pack - Black w/ Highlight

Part Number: SSY-310-1102A

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

S&S Cycle T124 Cylinder Kits 910-0226

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

Part Number: SSY-910-0226

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

S&S Cycle 74 in. Stock Bore Cylinder Kits 91-9012

S&S Cycle 66-84 BT 3-31/32in Stroke 3-7/16in Bore 9.0 To 1 Compression Cylinder Kit - Gloss Black

Part Number: SSY-91-9012

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

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