Check out this Quality V-Twin Primary belt drive kit. This includes one belt and two pulleys, which features the original phase 3 style and design.
The front pulley is 38 tooth and the rear pulley is 72 tooth. Kit includes one belt, replacement belts are available separately. For kick starter models only.
More Information 20-0524
UOM 1 - KIT
Measurements
Belt Width: 1-1/2"
Manufacturer York
Origin Imported
Replacement Items 20-0034 - Belt Drive Primary Belt Only

FITS Harley-Davidson
WL 1929-1952 for open primary use only
G 1929-1973 for open primary use only
R : 1936
RL : 1936
RLD : 1936
RLDR : 1936
RS : 1936
Servi Car G : 1936–1963
Servi Car GA : 1936–1963
Servi Car GD : 1936–1941
Servi Car GDT : 1936–1941
Servi Car GE : 1936–1973
W : 1937
WL : 1937–1942, 1944–1952
WLA : 1941–1945
WLC : 1942–1944
WLD : 1937–1942
WLDR : 1937–1941
WS : 1937
XA : 1942