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Drivetrain
MotorcycleDrivetrainEastern Motorcycle Parts Mainshafts and Components for 5-Speed Big Twin
Mainshafts and Components for 5-Speed Big Twin
Drivetrain

Eastern Motorcycle Parts Mainshafts and Components for 5-Speed Big Twin

$18.95 - $622.95
28 of 37 options in stock

Replacement mainshafts and related components for 5-speed Big Twin transmissions. Sold individually unless noted.

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Search by year, make, or model to see which options fit your ride:

Available Options:
(image for) Nyloc nut, 99-06 (5 pk.)
Nyloc nut, 99-06 (5 pk.)
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A-35078-79
In Stock
$24.95
(image for) Nyloc Nut
Nyloc Nut
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A-35078-79
In Stock
$24.95
(image for) Retaining Ring
Retaining Ring
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DS-188057
No longer available
Details
Details
(image for) Retaining Ring
Retaining Ring
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DS-188057
No longer available
Details
Details
(image for) Snap Rings
Snap Rings
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DS-188057
No longer available
Details
Details
(image for) Access Door Retaining Ring
Access Door Retaining Ring
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DS-188057
No longer available
Details
Details
(image for) Thrust washer, 91-20 (5 pk.)
Thrust washer, 91-20 (5 pk.)
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A-6003
In Stock
$21.95
(image for) Thrust Washer
Thrust Washer
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A-6003
In Stock
$21.95
(image for) Thrust Washer
Thrust Washer
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A-6003
In Stock
$21.95
(image for) Thrust Washer
Thrust Washer
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A-6003
In Stock
$21.95
(image for) Bearing, mainshaft/countershaft, 99-06
Bearing, mainshaft/countershaft, 99-06
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HDNB0031
In Stock
$24.95
(image for) Mainshaft/Countershaft Bearing
Mainshaft/Countershaft Bearing
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HDNB0031
In Stock
$24.95
(image for) Bearing, Mainshaft
Bearing, Mainshaft
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HDNB0031
In Stock
$24.95
(image for) Bearing, Mainshaft/Countershaft
Bearing, Mainshaft/Countershaft
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HDNB0031
In Stock
$24.95
(image for) Mainshaft, splined clutch, 99-06
Mainshaft, splined clutch, 99-06
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296910
In Stock
$622.95
(image for) Retaining ring, 99-06 (10 pk.)
Retaining ring, 99-06 (10 pk.)
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11067K
In Stock
$76.95
(image for) Retaining Ring
Retaining Ring
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11067K
In Stock
$76.95
Needle bearing, 5th gear mainshaft, 99-06
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35051-89
In Stock
$55.95
Bearing inner race, 99-06
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34091-85
In Stock
$96.95
(image for) Ball bearing, 99-06 (except 06 Dyna)
Ball bearing, 99-06 (except 06 Dyna)
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8996
In Stock
$79.95
(image for) M/S Ball Bearing Retaining Ring
M/S Ball Bearing Retaining Ring
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A-11161
Out of Stock
$46.95
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(image for) Bearing Snap Rings
Bearing Snap Rings
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A-11161
Out of Stock
$46.95
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Notify Me
(image for) Mainshaft Ball Bearing Retaining Ring
Mainshaft Ball Bearing Retaining Ring
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A-11161
Out of Stock
$46.95
Notify Me
Notify Me
(image for) Genuine James Gaskets Big Twin Mainshaft, Left Side
Genuine James Gaskets Big Twin Mainshaft, Left Side
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JGI-12067-A
In Stock
$18.95
(image for) Oil Seal
Oil Seal
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JGI-12067-A
In Stock
$18.95
(image for) Sprocket Shaft Seal 95-05 XL
Sprocket Shaft Seal 95-05 XL
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JGI-12067-A
In Stock
$18.95
(image for) Mainshaft Seal 00-06 Big Twin
Mainshaft Seal 00-06 Big Twin
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JGI-12067-A
In Stock
$18.95
(image for) Genuine James Gaskets Main Drive Gear (Outer)
Genuine James Gaskets Main Drive Gear (Outer)
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JGI-12074
In Stock
$18.95
(image for) Main Drive Gear Seal 06-22 XL
Main Drive Gear Seal 06-22 XL
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JGI-12074
In Stock
$18.95
(image for) Main Drive Gear Outer Seal 07-17 Twin Cam
Main Drive Gear Outer Seal 07-17 Twin Cam
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JGI-12074
In Stock
$18.95
(image for) Oil Seal
Oil Seal
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DS-194418
No longer available
Details
Details
(image for) Mainshaft Right Side Seal 91-22 XL
Mainshaft Right Side Seal 91-22 XL
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DS-194418
No longer available
Details
Details
(image for) 5th gear transmission O-ring, 06-20 (10 pk.)
5th gear transmission O-ring, 06-20 (10 pk.)
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JGI-11113
In Stock
$20.95
(image for) Transmission Door Bearing
Transmission Door Bearing
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A-8970
In Stock
$48.95
(image for) Transmission Door Bearing (Late Model)
Transmission Door Bearing (Late Model)
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A-8970
In Stock
$48.95
(image for) Replacement Seals - 86-90 XL sprocket shaft seal (double lip)
Replacement Seals - 86-90 XL sprocket shaft seal (double lip)
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JGI-12049-DL
In Stock
$35.95
(image for) Sprocket Shaft Seal 86-90 XL
Sprocket Shaft Seal 86-90 XL
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JGI-12049-DL
In Stock
$35.95
Vehicle Fitment Information
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