We’ve recently added the lower radiator water pipe for Cockshutt 40 and 50 and COS025  Coop E4 and E5.   The stock number for this part is COS025 and the price is $19.95.  We have been getting more and more requests for parts for these Canadian built tractors. If you would like to suggest a part to us, please use the Contact Us form on our website.  We love receiving your suggestions, it really helps us gauge the demand for various parts.