Stores that sell Harley Davidson Sportster engines include J&P Cycles and S&S Cycle, as of 2015. Additional sources for Sportster engines are American Parts and Motorcycles, eBay and Gogocycles.com.
J&P Cycles is an aftermarket motorcycle parts and accessories mail-order company. Aside from the catalog, J&P sells Harley Davidson parts and accessories from its retail stores, at bike rallies and events and from its website at JPCycles.com.
S&S Cycle manufactures, sells and services performance motorcycle engines, parts and accessories. S&S features Sportster engines, engine kits, carburetors and fuel systems. American Parts and Motorcycles and Gogocycles.com feature listings for used Sportster engines from dealers and private sellers.