We are the Most Experienced, Trusted & Highest Rated Tune up kit for Taylor models C713 & C723 Soft Serve Parts has been manufacturing and distributing parts for use in Taylor machines for over 33 Years and has the highest Trust Pilot ratings in our industry. These high quality non-OEM parts are composed of a high grade, FDA-approved polymers to maximize lifespan and efficiency of wearables. This tune up kit provides you with the wearables (scraper blades not included) needed for one (1) of the indicated machine model. This kit will help the various parts of your equipment function optimally. How Do I Know When To Replace This Part Inspect items for any cracking, tearing, or deterioration of material. Taylor recommends that you replace these parts every three (3) months or when you notice.