John Deere Original Equipment Extension Spring M45123
If you’re looking to replace the extension spring on your John Deere riding mower, you can find a replacement here. The m45123 is designed to fit the following models: 340D log skidder, 440C log skidder, 750C bulldozer, and 850D combine. This extension spring also works for the following tractors and combines: M45123 fits 330D and M44123 fits a tractor model with a 540D and a 770D.
