This is a parts service owners manual catalog.

Title: Parts Catalog for 1951 Twins 

Models Covered: 4425 Sportsman, 4423 Sportwin, 4443 Fleetwin, 4441 Fastwin, 2001 Big Twin 

OMC Item Number:   

OMC Parts Number: 2202-25C-10-55    

Inventory Location:  R17D