Centec CT16DX Belt (single) Centec CT16DX In Stock Ships Same Day Free Order Tracking Genuine Centec CT16DX belt. Fits all Centec CT16DX models. The belt number is listed in the manual as EB26502. This belt is also known as belt 20-5285 or 46-3300-03. Replace this belt every 6 months to ensure optimum preformance.