They feature a broached 1/2" hex for easy removal

The largest and most noticeable benefit is a smoother charge to the battery

6" internal width for more clearance for mounting hardware

the spacer (supplied as needed with certain kits) and rear sprocket with the included hardware and stainless steel locking tab washer

A big help for any primary or clutch work you need to do

#9523-1 Oil Pump Check Valve Plug 1936-1980 Harley-Davidson Big Twin 1937-Up UL/45s - Chrome Plated Subcategory_Valve Components They feature a broached 1/2"Exact chrome plated reproduction of OEM# 26362 36. Fits OHV Big Twins 1936 80, all UL and 45's 1937 up. Made in Ohio, USA.