Need a fresh air filter for your older Ford or New Holland tractor? This is the one. Part number 43231 (also crosses to 9N9623B, AB-422D, ABC422) fits a bunch of popular models like the D10, D12, D14, Jubilee, and NAA. It's brand new, ready to install, and helps keep your engine running clean by filtering out dust and debris from the air intake. Super important for protecting those older engines, especially if you're using your tractor for farming, landscaping, or just keeping the property in shape. The filter comes individually packaged, so it's easy to store until you need it. Just swap out the old one—it's a straightforward maintenance job that can make a big difference in performance and engine life. A must-have spare for any tractor owner or small farm operator. Keep your machine breathing easy!