![TRANSMISSION PARTS FOR BIG TWIN 4 SPEED MAIN DRIVE GEAR ASSEMBLY & HOUSING](http://rt66cycle.com/cdn/shop/products/0071105_550.JPG_87349db4-7eb6-492f-a0cf-5638497e2219_{width}x.jpg?v=1614564829)
MidUSA
TRANSMISSION PARTS FOR BIG TWIN 4 SPEED MAIN DRIVE GEAR ASSEMBLY & HOUSING
$33.50
V-FACTOR
Mainshaft Oil Seal fits Big Twin 4 speed 1980/1981
Clutch Hub Oil Seal fits K Model & Sportster 1967/1970
Single Lip, Package of 5
Replaces HD# 37741-67
(Imported)