Allis Chalmers | Agco Allis 622 Radiator & Cooling System. If you need help finding your parts, contact us here. You may also want to look in the Belts Category in the previous menu. Most Water Pumps listed are new, but we also offer remanufactured pumps and can even rebuild your core in many cases. Radiator caps and hoses will help complete the repair of your Allis Chalmers | Agco Allis.