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- PowerSports (6)

HARLEY-DAVIDSON Crankshafts

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S&S Cycle Oil Pump Driveshaft Woodruff Keys

S&S Cycle offers oil pump driveshaft woodruff keys for a wide range of Harley-Davidson© street bikes from 1936 through 2000. The semi-circular shaped machine keys fit into a specially cut slot (called a keyway) on a shaft, preventing gears, hubs, or other components from rotating independently on that shaft. They essentially act as a locking mechanism to keep parts aligned and prevent slippage during rotation. These steel replacements are machined according to factory specs to ensure proper fitment and performance. The keys are available individually or in a set of 10.

Not Yet Reviewed

$4.95

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$14.95

S&S Cycle Flywheel Assemblies

Why put your bike engine back together with stock parts—when you can upgrade with one of the S&S Cycle flywheel assemblies? These 3-piece units are forged and heat-treated from 4140 steel, making them harder and stronger than stock. They're precision-machined to be truer (for less vibration), and are assembled with integral mainshafts and lightweight connecting rod forgings. Stock flywheels shift out of true under heavy loads; improve your motorcycle with an S&S Cycle flywheel assembly.

Not Yet Reviewed

$1,744.95

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$1,764.95

S&S Cycle Crankpins

S&S Cycle crankpins are available in standard and oversized options for Big Twin and S&S Series engines. These tapered crankpins will provide the proper fit and performance, just like the originals they are replacing. Select the size needed for your motorcycle engine.

Not Yet Reviewed

$163.95

S&S Cycle Pinion/Oil Pump Keys

S&S Cycle pinion/oil pump woodruff keys are precision made from steel in different sizes to fit your application. They will keep your parts aligned and prevent slipping during rotation.

Not Yet Reviewed

$10.95

S&S Cycle Tapered Sprocket Shaft Assemblies

S&S Cycle tapered sprocket shaft assemblies are available to fit S&S and stock flywheels, and will include sprocket shaft, nut(s), and key(s). Select the one designed for your Big Twin motorcycle.

Not Yet Reviewed

$183.95

S&S Cycle Pinion Shaft Assemblies

S&S Cycle offers several pinion shaft assemblies for vintage and classic Big Twin bikes. These tapered or splined pinion shafts will fit specified S&S or stock flywheels and will include nut and key(s). Select the assembly designed for your motorcycle.

Not Yet Reviewed

$205.95

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