Harley Davidson Motorcycle Crankshafts & Components
- S&S Cycle®Flywheel Assembly (32-2230)Flywheel Assembly (32-2230) by S&S Cycle®. Stock bore stroker kits have always been an economical way to increase the displacement of your engine. This S&S 89" stock bore stroker kit upgrades carbureted 80" HD 80 Evolution big twin...Made in USAPrecise engineering ensures the latest in quality$1,497.95
- S&S Cycle®Flywheel Assembly (32-2235)Flywheel Assembly (32-2235) by S&S Cycle®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Use them to overhaul an S&S® engine or to build a custom engine using similar crankcases and pistonsMade in USA$1,497.95
- S&S Cycle®Flywheel Assembly (32-2239)Flywheel Assembly (32-2239) by S&S Cycle®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Made in USAPrecise engineering ensures the latest in quality$1,497.95
- S&S Cycle®Flywheel Assembly with Sprocket Shaft Bearing Race (320-0402)Flywheel Assembly with Sprocket Shaft Bearing Race (320-0402) by S&S Cycle®. All S&S® Flywheels for 1999-'06 engines have 7.667" length connecting rods. Flywheel assemblies supplied with sprocket shaft bearing race installed are...Made in USAPrecise engineering ensures the latest in quality$1,685.95
- S&S Cycle®Flywheel Assembly with Sprocket Shaft Bearing Race (320-0396)Flywheel Assembly with Sprocket Shaft Bearing Race (320-0396) by S&S Cycle®. All S&S® Flywheels for 1999-'06 engines have 7.667" length connecting rods. Flywheel assemblies supplied with sprocket shaft bearing race installed are...Made in USAPrecise engineering ensures the latest in quality$1,711.95
- S&S Cycle®Flywheel Assembly without Sprocket Shaft Bearing Race (320-0464)Flywheel Assembly without Sprocket Shaft Bearing Race (320-0464) by S&S Cycle®. Sprocket shaft does not have a stock style bearing race pressed on. This flywheel assembly is for crankcases with Timken® sprocket shaft bearing. Flywheel...Made in USAPrecise engineering ensures the latest in quality$1,685.95
- S&S Cycle®Flywheel Assembly without Sprocket Shaft Bearing Race (320-0469)Flywheel Assembly without Sprocket Shaft Bearing Race (320-0469) by S&S Cycle®. Sprocket shaft does not have a stock style bearing race pressed on. This flywheel assembly is for crankcases with Timken® sprocket shaft bearing. Pinion...Made in USAPrecise engineering ensures the latest in quality$1,685.95
- S&S Cycle®Flywheel Assembly without Sprocket Shaft Bearing Race (320-0475)Flywheel Assembly without Sprocket Shaft Bearing Race (320-0475) by S&S Cycle®. Sprocket shaft does not have a stock style bearing race pressed on. This flywheel assembly is for crankcases with Timken® sprocket shaft bearing. Flywheel...Made in USAPrecise engineering ensures the latest in quality$1,658.95
- S&S Cycle®Idler Gear Assembly (33-4216)Idler Gear Assembly by S&S Cycle®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...Precise engineering ensures the latest in qualityExpertly manufactured from highly reliable materials$229.95
- S&S Cycle®Oversize Pinion Gear (33-4142)Oversize Pinion Gear (33-4142) by S&S Cycle®. High-quality gears precision-machined, heat-treated and finish ground to different sizes for optimum gear lash. This top-grade product is expertly made in compliance with stringent industry...Each size is color-coded to match a stock equivalent gearGears from the middle of the range are recommended for building from scratch$125.96
- S&S Cycle®Pinion Gear (33-4166)Pinion Gear (33-4166) by S&S Cycle®. High-quality gears precision-machined, heat-treated and finish ground to different sizes for optimum gear lash. This top-grade product is expertly made in compliance with stringent industry standards...Each size is color-coded to match a stock equivalent gearGears from the middle of the range are recommended for building from scratch$225.95
- S&S Cycle®Pinion Gear (33-4164)Pinion Gear (33-4164) by S&S Cycle®. High-quality gears precision-machined, heat-treated and finish ground to different sizes for optimum gear lash. This top-grade product is expertly made in compliance with stringent industry standards...Each size is color-coded to match a stock equivalent gearGears from the middle of the range are recommended for building from scratch$241.95
- S&S Cycle®Pinion Gear for Gear Drive (33-4160Z)Pinion Gear for Gear Drive (33-4160Z) by S&S Cycle®. High-quality gears precision-machined, heat-treated and finish ground to different sizes for optimum gear lash. This top-grade product is expertly made in compliance with stringent...Precise engineering ensures the latest in qualityExpertly manufactured from highly reliable materials$126.95
- S&S Cycle®Pinion Gear for Gear Drive (33-4160X)Pinion Gear for Gear Drive (33-4160X) by S&S Cycle®. High-quality gears precision-machined, heat-treated and finish ground to different sizes for optimum gear lash. This top-grade product is expertly made in compliance with stringent...Precise engineering ensures the latest in qualityExpertly manufactured from highly reliable materials$126.95
- S&S Cycle®Pinion Gear for Gear Drive (33-4160XX)Pinion Gear for Gear Drive (33-4160XX) by S&S Cycle®. High-quality gears precision-machined, heat-treated and finish ground to different sizes for optimum gear lash. This top-grade product is expertly made in compliance with stringent...Precise engineering ensures the latest in qualityExpertly manufactured from highly reliable materials$126.95
- S&S Cycle®Pinion Shaft Assembly (33-2024)Pinion Shaft Assembly by S&S Cycle®. Fits S&S L, AL, SE or stock flywheels. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of...Made in USAPrecise engineering ensures the latest in quality$176.95
- S&S Cycle®Pinion Shaft Assembly (33-2021)Pinion Shaft Assembly by S&S Cycle®. Fits S&S E or stock flywheels. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Made in USAPrecise engineering ensures the latest in quality$176.95
- S&S Cycle®Red Pinion Gear (33-4123)Red Pinion Gear (33-4123) by S&S Cycle®. High-quality gears precision-machined, heat-treated and finish ground to different sizes for optimum gear lash. This top-grade product is expertly made in compliance with stringent industry...Each size is color-coded to match a stock equivalent gearGears from the middle of the range are recommended for building from scratch$133.95
- S&S Cycle®Sprocket Shaft Assembly (33-2004)Sprocket Shaft Assembly by S&S Cycle®. Fits S&S® or stock flywheels. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Includes motor sprocket nutMade in USA$149.95
- S&S Cycle®Sprocket Shaft Assembly (33-2001)Sprocket Shaft Assembly by S&S Cycle®. Fits S&S® or stock flywheels. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Includes motor sprocket nutMade in USA$176.95
- S&S Cycle®Sprocket Shaft Spacers (31-4011)Sprocket Shaft Spacers by S&S Cycle®. High-quality gears precision-machined, heat-treated and finish ground to different sizes for optimum gear lash. This top-grade product is expertly made in compliance with stringent industry...For use with standard charging systemPrecise engineering ensures the latest in quality$36.95
- S&S Cycle®Standard Pinion Gear (33-4144)Standard Pinion Gear (33-4144) by S&S Cycle®. High-quality gears precision-machined, heat-treated and finish ground to different sizes for optimum gear lash. This top-grade product is expertly made in compliance with stringent industry...Each size is color-coded to match a stock equivalent gearGears from the middle of the range are recommended for building from scratch$106.95
- Eastern Performance®Engine Woodruff Keys (A-23985-12)Engine Woodruff Keys (A-23985-12) by Eastern Performance®. Eastern Performance® has a huge selection of the best motorcycle parts & accessories for your Harley Davidson Touring, Softail, Dyna, Sportster, and V-Rod models. With over 20...Crafted with precision using leading innovationsDesigned specifically for Harley-Davidson motorcycles$26.58
- Eastern Performance®Engine Woodruff Keys (A-23985-18)Engine Woodruff Keys (A-23985-18) by Eastern Performance®. Eastern Performance® has a huge selection of the best motorcycle parts & accessories for your Harley Davidson Touring, Softail, Dyna, Sportster, and V-Rod models. With over 20...Crafted with precision using leading innovationsDesigned specifically for Harley-Davidson motorcycles$11.38
- Eastern Performance®Engine Woodruff Keys (A-23985-54)Engine Woodruff Keys (A-23985-54) by Eastern Performance®. Eastern Performance® has a huge selection of the best motorcycle parts & accessories for your Harley Davidson Touring, Softail, Dyna, Sportster, and V-Rod models. With over 20...Crafted with precision using leading innovationsDesigned specifically for Harley-Davidson motorcycles$11.38
- S&S Cycle®M-Eight M-Eight Flywheel Assemblies with Tapered Rods & w/o Balancer Gear (320-0616)M-Eight M-Eight Flywheel Assemblies with Tapered Rods & w/o Balancer Gear (320-0616) by S&S Cycle®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and...Made in USAPrecise engineering ensures the latest in quality$1,599.95
- S&S Cycle®M8 Flywheel Full 4-1/2" (320-0603)M8 Flywheel Full 4-1/2" (320-0603) by S&S Cycle®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Made in USAPrecise engineering ensures the latest in quality$1,818.95
- S&S Cycle®M8 Flywheel Full 4-3/8" (320-0604)M8 Flywheel Full 4-3/8" (320-0604) by S&S Cycle®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Made in USAPrecise engineering ensures the latest in quality$1,818.95
A crankshaft is one of the key components of your Harley Davidson’s engine that transforms the energy of moving pistons into rotary motion. Pistons move up and down in the cylinders pushed by the energy of the exploding air-and-fuel mixture. They are connected to the pushrods that rotate the crankshaft. A flywheel is added to the shaft to partially store the rotational energy, smooth out the rotation and balance vibrations created by the combustion process. A crankshaft rotates relatively fast, which cannot be used efficiently on the low-speed range and under heavy loads, which is why the transmission is added to the system.
Your crankshaft is connected to the input shaft of the gearbox that multiplies torque and transmits engine power to the rear wheel through the drive chain or belt for starting a bike and making it move at slower speeds and uphill. You can upgrade your engine by installing an aftermarket flywheel assembly made from strong, heat treated alloys that are able to withstand much heavier loads than their stock analogs. Browse our catalog of Harley Davidson motorcycle crankshafts and related components by some of the most trustworthy brands in the industry, such as S&S Cycle, JIMS, East Performance, Andrews Products, and many others.
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