check out ebay item #363790901198 its
Manufacturer Part Number:
JCB 9803/3250 I just order one and it is perfect for my 1400B. You might want to ask the seller if it covers your machine. It was the one everyone on the forum was suggesting for the 1400B of my serial#. Hopefully someone else here chimes in. Just to let you know-it is a reprint and the paper and ink used arent the greatest, but it is all legible. I dont know why you havent gotten more input from the group, maybe give it some time. Ive found some good places for parts when you get down to it. JCB dealers will crush you with their prices on most stuff. I just ran into this
https://jcb-manual.com/store/products/jcb-3c-loader-backhoe-1400b-1500b-parts-catalog-manual/ but I havent bought it nor now anything about it yet. It does frustrating getting part numbers. I bought a PDF of a parts book years ago, but it only had the break downs-no actual part numbers. But it was either cheap or free so wth? I dont claim to be an expert,but I have managed to keep my machines tip top mechanically since it was a few years old without going broke. If no one more knowledgable helps you out let me know when you start needing parts and I'll try to share where I have bought them and which places treated me the best