Motorcycle Transmissions & Components

Harley Davidson Motorcycle Transmissions & Parts

  • Baker Drivetrain® - DD7 7-Speed Direct Drive Builders Kit
    Baker Drivetrain®DD7 7-Speed Direct Drive Builders Kit
    0
    # sp144250
    DD7 7-Speed Direct Drive Builders Kit by Baker Drivetrain®. Included BAKER Direct Drive 7 Speed Stock Side Cover emblem. The DD7 upgrades any existing 2006-later big twin 6 speed to a full 7 speed transmission. The BAKER DD7 is more...
    Shorter first gear ratio to help with the off the light get up and go, as well as slow speed maneuvering around the bar parking lotFully assembled gear set and shift system. No adjustments needed for installation
    $3,102.76 - $3,695.00
  • Andrews Products® - Transmission Close Ratio Gear Set
    Andrews Products®Transmission Close Ratio Gear Set
    0
    # sp174739
    Transmission Close Ratio Gear Set by Andrews Products®. All speed gears are made from high nickel alloy and heat treated and shot-peened to give maximum durability and strength. Also, where applicable, lead-in ramps have been machined...
    Precise engineering provides great longevityPeak accuracy and effectiveness
    $192.78 - $273.89
  • Andrews Products® - Transmission Gear
    Andrews Products®Transmission Gear
    0
    # sp174742
    Transmission Gear by Andrews Products®. All speed gears are made from high nickel alloy and heat treated and shot-peened to give maximum durability and strength. Also, where applicable, lead-in ramps have been machined into most gears...
    Precise engineering provides great longevityPeak accuracy and effectiveness
    $79.57 - $711.66
  • Baker Drivetrain® - 6-Into-4 Transmission
    Baker Drivetrain®6-Into-4 Transmission
    0
    # sp190352
    6-Into-4 Transmission by Baker Drivetrain®. Made to satisfy the old school tendencies while providing the ability to run reasonable RPM's at highway speeds. Panhead and Shovelhead riders will love the ability to ride hard with their...
    OD6-based transmission insideSmooth out the rattle on the highway
    $3,795.00
  • Accutronix® - Knurled Transmission Dipstick
    Accutronix®Knurled Transmission Dipstick
    0
    # sp156441
    Knurled Transmission Dipstick by Accutronix®. Accutronix has added a Transmission Dipstick to Accutronix line of billet products. These Knurled dipsticks replace the OEM item and really clean up the look of the transmission. Accutronix...
    Designed to provide unrivaled value and maximum reliabilityExpertly crafted from the highest grade materials
    $63.95
  • Baker Drivetrain® - DD6 6-Speed Direct Drive Transmission Builders Kit
    Baker Drivetrain®DD6 6-Speed Direct Drive Transmission Builders Kit
    0
    # sp141374
    DD6 6-Speed Direct Drive Transmission Builders Kit by Baker Drivetrain®. Anti-overshift ratchet pawl and Longer primary chain included. From an engineering standpoint, it is difficult to design a machine or mechanism that achieves...
    Billet 6061-T6 bearing door1/8" thick bearing retainer plate
    $2,652.41 - $2,895.00
  • Andrews Products® - Transmission Countershaft Gear
    Andrews Products®Transmission Countershaft Gear
    0
    # sp174741
    Transmission Countershaft Gear by Andrews Products®. Transmission gears are made from high nickel alloy steel which is heat-treated and shot peened for maximum durability. Shot peening greatly improves the wear resistance of drive edges...
    Precise engineering provides great longevityPeak accuracy and effectiveness
    $45.86 - $129.12
  • Baker Drivetrain® - Function-Formed Hydraulic Side Cover
    Baker Drivetrain®Function-Formed Hydraulic Side Cover
    0
    # sp141376
    Function-Formed Hydraulic Side Cover by Baker Drivetrain®. The Hydraulic Side Covers was one of the first parts in the FF product line. Baker took away all the 'fat' of the standard aftermarket side cover and left the function. The...
    Forged 6061 Side Covers tuck tighter to the transmission than the stock cable style side coversCompact and versatile hydraulic line routing enabling the banjo fitting to be on the front or rear of the transmission
    $362.00
  • Andrews Products® - Transmission Mainshaft Gear
    Andrews Products®Transmission Mainshaft Gear
    0
    # sp174746
    Transmission Mainshaft Gear by Andrews Products®. Transmission gears are made from high nickel alloy steel which is heat-treated and shot peened for maximum durability. Shot peening greatly improves the wear resistance of drive edges...
    Precise engineering provides great longevityPeak accuracy and effectiveness
    $84.01 - $124.53
  • SMP® - Neutral Safety Switch
    SMP®Neutral Safety Switch
    0
    # sp148778
    Neutral Safety Switch by SMP®. Precision manufactured to stringent specifications to ensure proper function and long life in the toughest of conditions. All switches feature a high carbon steel plunger hardened to 48 Rockwell C for...
    Direct O.E.M. replacement type switchesGasket or seal included
    $15.05 - $17.64
  • JIMS® - 4-Speed Transmission Rebuild Kit
    JIMS®4-Speed Transmission Rebuild Kit
    0
    # sp141410
    4-Speed Transmission Rebuild Kit by JIMS®. Use JIMS® proven transmission parts to start with, then top it off with a JIMS® Gasket set, together in one convenient package. This is a big time saver.
    Made in USABuilt to match your exact requirements
    $234.32 - $337.82
  • Baker Drivetrain® - Roller 5-Speed Shift Kit
    Baker Drivetrain®Roller 5-Speed Shift Kit
    0
    # sp144253
    Roller 5-Speed Shift Kit by Baker Drivetrain®. The design principles that made Baker Six-Speed Overdrive shift so smooth were applied to create a shift drum/pillow block kit that will bolt on to any 5-speed and give super smooth and...
    Made to offer outstanding performancePerfect for both professionals and enthusiasts
    $265.00
  • JIMS® - Countershaft Gear Bushing
    JIMS®Countershaft Gear Bushing
    0
    # sp165716
    Countershaft Gear Bushing by JIMS®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect deal for your ultimate satisfaction.
    Unique design to meet your tastes and preferencesManufactured to deliver incredible quality
    $28.04 - $28.35
  • Andrews Products® - Transmission Main Belt Drive Gear
    Andrews Products®Transmission Main Belt Drive Gear
    0
    # sp174743
    Transmission Main Belt Drive Gear by Andrews Products®. Transmission gears are made from high nickel alloy steel which is heat-treated and shot peened for maximum durability. Shot peening greatly improves the wear resistance of drive...
    Precise engineering provides great longevityPeak accuracy and effectiveness
    $50.27 - $217.98
  • Andrews Products® - Transmission Countershaft
    Andrews Products®Transmission Countershaft
    0
    # sp174740
    Transmission Countershaft by Andrews Products®. Three types of countershafts fit transmissions through 1985. Countershafts are not interchangeable, take care in ordering. This top-grade product is expertly made in compliance with...
    Precise engineering provides great longevityPeak accuracy and effectiveness
    $35.67 - $132.08
  • Colony® - Transmission Mainshaft Locknut
    Colony®Transmission Mainshaft Locknut
    0
    # sp198511
    Transmission Mainshaft Locknut by Colony®. 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...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $13.75 - $18.18
  • Baker Drivetrain® - Transmission Rebuild Kit
    Baker Drivetrain®Transmission Rebuild Kit
    0
    # sp141378
    Transmission Rebuild Kit by Baker Drivetrain®. Includes bearings, snap rings, gaskets, seals and retaining nuts. An all inclusive kit designed to freshen up those high mileage bikes. This kit was put together to assist you with that...
    Made to offer outstanding performancePerfect for both professionals and enthusiasts
    $379.00
  • Andrews Products® - Transmission Shift Fork
    Andrews Products®Transmission Shift Fork
    0
    # sp174748
    Transmission Shift Fork by Andrews Products®. A must for all transmission rebuilds. 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...
    Precise engineering provides great longevityPeak accuracy and effectiveness
    $18.97
  • Baker Drivetrain® - Speedo Hole Plug
    Baker Drivetrain®Speedo Hole Plug
    0
    # sp198518
    Speedo Hole Plug by Baker Drivetrain®. If you need to cap off the speedo sensor hole for whatever reason, you need this plug. Some other companies do this with a steel plate and a gasket, just like old 4-speeds. Ever seen a 4-speed with...
    6061-T6 AluminumLow-profile top
    $27.00 - $31.00
  • JIMS® - Overdrive Transmission Rebuild Kit
    JIMS®Overdrive Transmission Rebuild Kit
    0
    # sp165718
    Overdrive Transmission Rebuild Kit by JIMS®. JIMS® proven transmission parts to start with, then top it off with a JIMS® gasket set, together in one convenient package. This is a big time saver. If you're looking for a quality...
    Unique design to meet your tastes and preferencesManufactured to deliver incredible quality
    $293.90 - $360.50
  • Andrews Products® - Transmission Mainshaft
    Andrews Products®Transmission Mainshaft
    0
    # sp174744
    Transmission Mainshaft by Andrews Products®. Made of aircraft alloy steel. Heat-treated and finish ground to ensure maximum durability. Replacement mainshafts for all versions of Big Twin boxes. Made of aircraft alloy steel....
    Precise engineering provides great longevityPeak accuracy and effectiveness
    $226.38 - $266.48
  • Baker Drivetrain® - Transmission Dipstick
    Baker Drivetrain®Transmission Dipstick
    0
    # sp182621
    Transmission Dipstick by Baker Drivetrain®. Have you ever heard of a 5-speed transmission dipstick breaking off and working its way into the gearbox with disastrous results? Ask any seasoned technician; he's seen one. The low frequency...
    Made of billet aluminum and show chrome-platedLargest radius possible between the stalk and the head
    $29.00 - $40.81
  • Colony® - Transmission Plug
    Colony®Transmission Plug
    0
    # sp141184
    Transmission Plug by Colony®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at an...
    Made in USADesigned specifically for Harley-Davidson motorcycles
    $12.12 - $19.45
  • Compu-Fire® - 8620 Hardened Steel Gear Set
    Compu-Fire®8620 Hardened Steel Gear Set
    0
    # sp141271
    8620 Hardened Steel Gear Set by Compu-Fire®. 10/84 Gear Set made with 8620 Hardened Steel. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high...
    Wicked style meets astounding performanceExcellent upgrade for die-hard performance fans
    $194.80
  • HardDrive® - Shift Fork
    HardDrive®Shift Fork
    0
    # sp162578
    Shift Fork by HardDrive®. 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 materials...
    Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials
    $33.26 - $35.96
  • JIMS® - Shift Fork Shaft
    JIMS®Shift Fork Shaft
    0
    # sp165720
    Shift Fork Shaft by JIMS®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect deal for your ultimate satisfaction.
    Unique design to meet your tastes and preferencesManufactured to deliver incredible quality
    $22.91 - $35.06
  • Eastern Performance® - Main Drive Gear Spacer
    Eastern Performance®Main Drive Gear Spacer
    0
    # sp141453
    Main Drive Gear Spacer by Eastern Performance®. Precision spacers used between main drive gear and sprocket for belt drive Sportsters and Big Twin transmissions. Manufactured from high quality alloy steel, hardened and ground....
    Crafted with precision using leading innovationsDesigned specifically for Harley-Davidson motorcycles
    $14.64 - $32.46
  • JIMS® - Transmission Main Bearing Race
    JIMS®Transmission Main Bearing Race
    0
    # sp182629
    Transmission Main Bearing Race by JIMS®. Standard O.D, is 2.314", I.D, is 1.8802", It will depend on the amount of press fit and will determinethe amount of line lapping required to fit new bearing and mainshaft
    Unique design to meet your tastes and preferencesManufactured to deliver incredible quality
    $86.99
  • Colony® - Transmission Mount Kit
    Colony®Transmission Mount Kit
    0
    # sp141182
    Transmission Mount Kit by Colony®. Includes bolts and washers necessary for installation. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...
    Made from the highest quality materialsMade in USA
    $35.69 - $43.70
  • Accutronix® - Battle Axe Style Shift Linkage
    Accutronix®Battle Axe Style Shift Linkage
    0
    # 2114996065
    Universal Battle Axe Style Shift Linkage by Accutronix®. 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...
    Designed to provide unrivaled value and maximum reliabilityExpertly crafted from the highest grade materials
    $116.95 - $133.95




Any motor vehicle is coupled with a gearbox to use the energy of combustion more efficiently, and your Harley Davidson is no exception. Lower gears are engaged to make it easier for your machine to handle heavier loads, for example, when starting or going uphill. Motorcycles are usually equipped with a manual sequential transmission with straight cut gears. It means, that you have to push up a shifter lever each time you need to shift to a higher gear and step on it when you need to shift down. Some of the gears are splined to input or output shafts, and some are rotating freely.

Dog clutches are used for coupling two adjacent gears without friction. They allow for clutchless shifting on higher gears since the construction doesn’t require the synchronization of gears that are about to be engaged. Still, over the years of use, dog clutch teeth may get sheared on one of their edges resulting in the less efficient operation of the gearbox. Our online store offers a wide range of high-quality Harley Davidson motorcycle transmissions and components, including complete rebuild kits, gear sets, shift forks and rollers, ratchet paws, and much more. Also, you can modify your bike according to your needs by increasing or reducing the number of available speeds.

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