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Harley Transmission Internal Components

Harley Transmission Internal Components

Harley Transmission Internal Components

Upgrade your bike’s core with high-quality Harley transmission parts and upgrades. From precision-crafted gears to high-torque bearings, these components maintain seamless performance for all riding styles.

  • Product
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  • Subtotal
  • COLONY Transmission Stud - 3/8-16 x 3/8-24 9653-4

    COLONY Transmission Stud - 3/8-16 x 3/8-24 9653-4

    COLONY

    $19.95
    COLONY Transmission Stud 3/8-16 x 3/8-24 9653-4Studs are heat-treated for strength and durability, Equal or surpass original equipment, Made in the U.S.A.
    DS189937
    SKU:
    DS189937
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    RIDING STYLE:
    STREET
    STYLE:
    REPLACEMENT
    TYPE:
    TRANSMISSION
    DIAMETER - THREAD SIZE:
    3/8-24
    PRODUCT NAME:
    TRANSMISSION BOTTOM STUD
    UNITS:
    4 PACK
    DIAMETER - THREAD SIZE:
    3/8-16
    $19.95
    Qty in Cart: 0
    Quantity:
    Price:
    $19.95
    Subtotal:
  • COLONY Transmission Stud - 7/16-14 x 3/8-24 9654-4

    COLONY Transmission Stud - 7/16-14 x 3/8-24 9654-4

    COLONY

    $20.95
    COLONY Transmission Stud 7/16-14 x 3/8-24 9654-4Studs are heat-treated for strength and durability, Equal or surpass original equipment, Made in the U.S.A.
    DS189936
    SKU:
    DS189936
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    DIAMETER - THREAD SIZE:
    3/8-24
    DIAMETER - THREAD SIZE:
    7/16-14
    PRODUCT NAME:
    TRANSMISSION BOTTOM STUD
    STYLE:
    OVERSIZE
    STYLE:
    REPLACEMENT
    TYPE:
    TRANSMISSION
    RIDING STYLE:
    STREET
    UNITS:
    4 PACK
    $20.95
    Qty in Cart: 0
    Quantity:
    Price:
    $20.95
    Subtotal:
  • Jims Shift Fork Shaft for Harley-Davidson 1987-2006 Big Twin 34088-87

    Jims Shift Fork Shaft for Harley-Davidson 1987-2006 Big Twin 34088-87

    JIMS

    $30.95
    JIMS Shift Fork Shaft 34088-87 Enhance your motorcycle's performance with the JIMS Shift Fork Shaft 34088-87, expertly crafted in the U.S.A. This precision-engineered component ensures optimal shifting and durability, making it an essential upgrade for...
    DS194250
    SKU:
    DS194250
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    SHIFT FORK SHAFT
    TRANSMISSION TYPE:
    5 SPEED
    TRANSMISSION TYPE:
    6 SPEED
    UNITS:
    EACH
    MATERIAL:
    STEEL
    $30.95
    Qty in Cart: 0
    Quantity:
    Price:
    $30.95
    Subtotal:
  • Jims Shift Fork Shaft for Harley-Davidson Big Twin 1936-1986 34186-76

    Jims Shift Fork Shaft for Harley-Davidson Big Twin 1936-1986 34186-76

    JIMS

    $46.95
    JIMS Shift Fork Shaft 34186-76 Introducing the JIMS Shift Fork Shaft 34186-76, engineered for optimal performance and durability. Proudly made in the U.S.A., this component is designed to enhance the shifting experience of your motorcycle. Trust in JIMS...
    DS194251
    SKU:
    DS194251
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    RIDING STYLE:
    STREET
    TRANSMISSION TYPE:
    4 SPEED
    MATERIAL:
    STEEL
    PRODUCT NAME:
    SHIFT FORK SHAFT KIT
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $46.95
    Subtotal:
  • Jims Gear Mainshaft Bushing for Harley-Davidson FL 1941-1947 35322-38

    Jims Gear Mainshaft Bushing for Harley-Davidson FL 1941-1947 35322-38

    JIMS

    $39.95
    The JIMS Gear Mainshaft Bushing 35322-38 is a high-quality replacement part designed to enhance the performance and longevity of your motorcycle's transmission system. Crafted from durable materials, this bushing ensures a precise fit and optimal...
    DS194252
    SKU:
    DS194252
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    PRODUCT NAME:
    BUSHING
    RIDING STYLE:
    STREET
    TYPE:
    SECOND GEAR
    TYPE:
    MAINSHAFT
    TYPE:
    THIRD GEAR
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • Jims Splined Clutch Mainshaft for 1991-2006 Harley-Davidson Big Twin 5-Speed 35042-91

    Jims Splined Clutch Mainshaft for 1991-2006 Harley-Davidson Big Twin 5-Speed 35042-91

    JIMS

    $466.95
    The JIMS Mainshaft Splined Clutch 35042-91 is engineered for high-performance applications, ensuring optimal power transfer and reliability for your motorcycle. Crafted with precision, this clutch component is designed to enhance your riding experience...
    DS199492
    SKU:
    DS199492
    Availability:
    Ships Same Business Day
    Weight:
    2.56 LBS
    PRODUCT NAME:
    MAINSHAFT
    TRANSMISSION TYPE:
    5 SPEED
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    $466.95
    Qty in Cart: 0
    Quantity:
    Price:
    $466.95
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Bearing Spacer - 11599/A 40-0160

    EASTERN MOTORCYCLE PARTS Bearing Spacer - 11599/A 40-0160

    EASTERN MOTORCYCLE PARTS

    $18.95
    EASTERN MOTORCYCLE PARTS Bearing Spacer 11599/A 40-0160Replacement spacer for output gear assembly in 6-speed transmissions
    11060075
    SKU:
    11060075
    Availability:
    Ships Same Business Day
    Weight:
    0.21 LBS
    RIDING STYLE:
    STREET
    TYPE:
    MAINSHAFT
    MATERIAL:
    STEEL
    TRANSMISSION TYPE:
    6 SPEED
    PRODUCT NAME:
    SPACER
    UNITS:
    EACH
    $18.95
    Qty in Cart: 0
    Quantity:
    Price:
    $18.95
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Bearing - 8042 40-0310

    EASTERN MOTORCYCLE PARTS Bearing - 8042 40-0310

    EASTERN MOTORCYCLE PARTS

    $28.95
    EASTERN MOTORCYCLE PARTS Bearing 8042 40-0310High quality bearings for 6-speed transmissions
    11060076
    SKU:
    11060076
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    PRODUCT NAME:
    BEARING
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    TYPE:
    MAIN DRIVE GEAR
    $28.95
    Qty in Cart: 0
    Quantity:
    Price:
    $28.95
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Transmission Bearing - 8026 40-0315

    EASTERN MOTORCYCLE PARTS Transmission Bearing - 8026 40-0315

    EASTERN MOTORCYCLE PARTS

    $41.95
    EASTERN MOTORCYCLE PARTS Transmission Bearing 8026 40-0315High quality bearings for 6-speed transmissions
    11060077
    SKU:
    11060077
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    PRODUCT NAME:
    BEARING
    RIDING STYLE:
    STREET
    TYPE:
    MAINSHAFT
    UNITS:
    4 PACK
    TYPE:
    COUNTERSHAFT
    $41.95
    Qty in Cart: 0
    Quantity:
    Price:
    $41.95
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Bearing - 8963 40-0325

    EASTERN MOTORCYCLE PARTS Bearing - 8963 40-0325

    EASTERN MOTORCYCLE PARTS

    $26.95
    EASTERN MOTORCYCLE PARTS Bearing 8963 40-0325High quality bearings for 6-speed transmissions
    11060078
    SKU:
    11060078
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    BEARING
    STYLE:
    LEFT SIDE
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    TYPE:
    COUNTERSHAFT
    Qty in Cart: 0
    Quantity:
    Price:
    $26.95
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Mainshaft - Bearing 40-0345

    EASTERN MOTORCYCLE PARTS Mainshaft - Bearing 40-0345

    EASTERN MOTORCYCLE PARTS

    $10.95
    EASTERN MOTORCYCLE PARTS Mainshaft Bearing 40-0345Mainshaft component for 5-speed
    11060079
    SKU:
    11060079
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    NEEDLE BEARING
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    TYPE:
    MAINSHAFT
    $10.95
    Qty in Cart: 0
    Quantity:
    Price:
    $10.95
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Main Drive Gear 42-0100

    EASTERN MOTORCYCLE PARTS Main Drive Gear 42-0100

    EASTERN MOTORCYCLE PARTS

    $6.60
    EASTERN MOTORCYCLE PARTS Main Drive Gear 42-0100High-quality OEM replacement components
    11060081
    SKU:
    11060081
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    RETAINING RING
    TRANSMISSION TYPE:
    6 SPEED
    RIDING STYLE:
    STREET
    TYPE:
    MAIN DRIVE GEAR
    STYLE:
    OEM REPLACEMENT
    UNITS:
    10 PACK
    $6.60
    Qty in Cart: 0
    Quantity:
    Price:
    $6.60
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Main Drive Gear A-10991

    EASTERN MOTORCYCLE PARTS Main Drive Gear A-10991

    EASTERN MOTORCYCLE PARTS

    $9.30
    EASTERN MOTORCYCLE PARTS Main Drive Gear A-10991High-quality OEM replacement components
    11060082
    SKU:
    11060082
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    PRODUCT NAME:
    RETAINING RING
    TRANSMISSION TYPE:
    6 SPEED
    RIDING STYLE:
    STREET
    TYPE:
    MAIN DRIVE GEAR
    STYLE:
    OEM REPLACEMENT
    UNITS:
    10 PACK
    $9.30
    Qty in Cart: 0
    Quantity:
    Price:
    $9.30
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Sprocket Shaft Nut - 35211-91 A-35211-91

    EASTERN MOTORCYCLE PARTS Sprocket Shaft Nut - 35211-91 A-35211-91

    EASTERN MOTORCYCLE PARTS

    $11.95
    EASTERN MOTORCYCLE PARTS Sprocket Shaft Nut 35211-91 A-35211-91High-quality OEM replacement part, Made in the U.S.A.
    11060083
    SKU:
    11060083
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    TYPE:
    SPROCKET
    RIDING STYLE:
    STREET
    STYLE:
    OEM REPLACEMENT
    PRODUCT NAME:
    NUT
    UNITS:
    EACH
    $11.95
    Qty in Cart: 0
    Quantity:
    Price:
    $11.95
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Shifter Shaft - 34628-54A A-34628-54A

    EASTERN MOTORCYCLE PARTS Shifter Shaft - 34628-54A A-34628-54A

    EASTERN MOTORCYCLE PARTS

    $38.95
    EASTERN MOTORCYCLE PARTS Shifter Shaft 34628-54A A-34628-54AMeets or exceeds OEM standards, Includes the ball
    11060086
    SKU:
    11060086
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    STYLE:
    OEM REPLACEMENT
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    PRODUCT NAME:
    SHIFT LEVER SHAFT
    $38.95
    Qty in Cart: 0
    Quantity:
    Price:
    $38.95
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Shifter Shaft Spring A-34087-79A

    EASTERN MOTORCYCLE PARTS Shifter Shaft Spring A-34087-79A

    EASTERN MOTORCYCLE PARTS

    $16.00
    EASTERN MOTORCYCLE PARTS Shifter Shaft Spring A-34087-79ATop-quality OEM replacement, Made in the U.S.A.
    11060048
    SKU:
    11060048
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    TYPE:
    SHIFTER SHAFT
    RIDING STYLE:
    STREET
    STYLE:
    OEM REPLACEMENT
    PRODUCT NAME:
    SPRING
    UNITS:
    5 PACK
    $16.00
    Qty in Cart: 0
    Quantity:
    Price:
    $16.00
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Shifter Lever Spring - 34083-79 A-34083-79

    EASTERN MOTORCYCLE PARTS Shifter Lever Spring - 34083-79 A-34083-79

    EASTERN MOTORCYCLE PARTS

    $17.30
    EASTERN MOTORCYCLE PARTS Shifter Lever Spring 34083-79 A-34083-79Top-quality OEM replacement component, Made in the U.S.A.
    11060049
    SKU:
    11060049
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    STREET
    UNITS:
    10 PACK
    PRODUCT NAME:
    SPRING
    TYPE:
    PAWL SPRING
    STYLE:
    OEM REPLACEMENT
    $17.30
    Qty in Cart: 0
    Quantity:
    Price:
    $17.30
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Shifter Lever Spring - 34977-00A A-34977-00A

    EASTERN MOTORCYCLE PARTS Shifter Lever Spring - 34977-00A A-34977-00A

    EASTERN MOTORCYCLE PARTS

    $8.00
    EASTERN MOTORCYCLE PARTS Shifter Lever Spring 34977-00A A-34977-00ATop-quality OEM replacement component, Made in the U.S.A.
    11060050
    SKU:
    11060050
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    STYLE:
    OEM REPLACEMENT
    UNITS:
    10 PACK
    PRODUCT NAME:
    SPRING
    RIDING STYLE:
    STREET
    TYPE:
    PAWL SPRING
    $8.00
    Qty in Cart: 0
    Quantity:
    Price:
    $8.00
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Mainshaft Washers A-35385-SET

    EASTERN MOTORCYCLE PARTS Mainshaft Washers A-35385-SET

    EASTERN MOTORCYCLE PARTS

    $41.95
    EASTERN MOTORCYCLE PARTS Mainshaft Washers A-35385-SETKit includes one each of the following thrust washers: .0965", .0905", .0845", .0795", .0725", .0675", Made in the U.S.A.
    11060056
    SKU:
    11060056
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    TYPE:
    MAINSHAFT
    PRODUCT NAME:
    THRUST WASHER
    RIDING STYLE:
    STREET
    STYLE:
    RIGHT SIDE
    UNITS:
    SET
    Qty in Cart: 0
    Quantity:
    Price:
    $41.95
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Mainshaft Bearing A-35030-89

    EASTERN MOTORCYCLE PARTS Mainshaft Bearing A-35030-89

    EASTERN MOTORCYCLE PARTS

    $26.95
    EASTERN MOTORCYCLE PARTS Mainshaft Bearing A-35030-89Mainshaft component for 5-speed
    11060182
    SKU:
    11060182
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    PRODUCT NAME:
    BEARING
    UNITS:
    EACH
    STYLE:
    TRAP DOOR
    RIDING STYLE:
    STREET
    TYPE:
    MAINSHAFT
    $26.95
    Qty in Cart: 0
    Quantity:
    Price:
    $26.95
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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