We have the largest Sc4450dx parts catalog available. Find all the Sc4450dx parts you need, including all Scooter type models for Pride Mobility products. Sc4450dx parts are available to be shipped directly from the manufacturer. Get the lowest prices possible on Sc4450dx parts. Getting your Sc4450dx back into working condition is our top priority at Southwest Medical. Call us at 800-236-4215 for assistance in locating your Spark parts.