HARLEY-DAVIDSON S&S Cycle Engines & Components

S&S Cycle 2017+ M8 Touring Models MK-Series Touring Crankcase Assembly - Black

Part Number: SSY-310-1170

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 2017+ M8 129in Power Pack w/ Chrome Pushrod Tubes & Cam Chain Tensioner - Blk w/ Highlight

Part Number: SSY-310-1223

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 2017+ M8 129in Power Pack w/ Chrome Pushrod Tubes & Gear Drive Cam - Black w/ Highlight

Part Number: SSY-310-1224

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 2017+ M8 129in Power Pack w/ Blk Pushrod Tubes & Cam Chain Tensioners - Blk w/o Highlight

Part Number: SSY-310-1226

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 2017+ M8 129in Power Pack w/ Black Pushrod Tubes & Gear Drive Cam - Black w/ Highlight

Part Number: SSY-310-1227

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 2017+ M8 129in Power Pack w/ Black Pushrod Tubes & Gear Drive Cam - Black w/o Highlight

Part Number: SSY-310-1228

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 2017+ M8 Models 4.320in Bore 550C Cam Power Pack - Black w/ Highlight

Part Number: SSY-310-1229

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 2017+ M8 124in CI Oil Cooled Power Pack w/ Black Pushrod Tubes w/ Highlight

Part Number: SSY-310-1056B

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 2017+ M8 124in CI Oil Cooled Power Pack w Black Pushrod Tubes w/o Highlight

Part Number: SSY-310-1057B

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 2017 M8 Models 124in CI Oil Cooled w/ Black Pushrod Tubes & Highlighted Fins

Part Number: SSY-310-1058A

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 2017+ M8 124in CI Oil Cooled Power Pack w/ Black Pushrod Tubes w/o Highlight

Part Number: SSY-310-1059A

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 2017+ M8 Models Gear Drive 550GG Cam Chest Kit w/ Chrome Pushrod Tubes - Water Cooled

Part Number: SSY-310-1081A

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

SPROCKET SHAFT ASSEMBLIES

Part Number: SSY-33-2001

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

PINION SHAFT ASSEMBLIES

Part Number: SSY-33-2021

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

PINION GEAR BLK

Part Number: SSY-33-4122

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

PINION GEAR BLU

Part Number: SSY-33-4124

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S 635G CAMSHAFT KIT

Part Number: SSY-330-0335

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S 635GE CAMSHAFT KIT

Part Number: SSY-330-0339

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

COMPLETE Motor, T143" MOTOR TOUR WBLK-FINS

Part Number: SSY-310-0548A

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

Long Block, T-Series, 143 in., 635 in. Cams, Carbureted/Fuel Injected, Black Wrinkle Finish, Harley-Davidson®, Twin Cam, Each

Part Number: SSY-310-0737

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

Long Block, V-Series, 111 in., 585 in. Cam, Carbureted/Fuel Injected, Black Wrinkle Finish, Harley-Davidson®, Evolution, Each

Part Number: SSY-310-0766

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

ENGINE CYLINDERS, 99-06 TWIMCAM (EXC 06 DYNA), 4" CYLINDER KIT BLK

Part Number: SSY-910-0646

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 2017+ M8 Models Gear Drive 550G Cam Chest kit w/ Chrome Pushrod Tubes - Oil Cooled

Part Number: SSY-310-1083A

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 2017+ Water Cooled M8 Models Chain Drive 540C Cam Chest Kit w/ Chrome Pushrod Tubes

Part Number: SSY-310-1116A

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order

S&S Cycle 2017+ M8 Models Gear Drive 540GG Cam Chest Kit w/ Chrome Pushrod Tubes - Water Cooled

Part Number: SSY-310-1117

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

• Free Shipping
• $10 Summit Bucks
• Special Order