VEVOR Bucket Tooth Bar 66'' Inside Bucket Width Tractor Bucket Teeth 9.84'' Teeth Space Tooth Bar for Loader Bucket 23TF Bolt on Tooth Bucket Enables Penetration of Compacted Soil and Other Materials

We don't have a 4' bucket currently.

This product meets your needs.

We do not sell parts separately. All our products have a 12 month warranty and if there is a problem with your purchase during the warranty period, we will send you a replacement part free of charge(Except for consumables, they need to be purchased by you yourself). Please click the following link to contact us: https://www.vevor.com/pages/contact-us.

Yes, this is feasible. For more information, refer to the file in the link: https://d2v0huudrf11kh.cloudfront.net/vevor-center-goods/%E9%93%B2%E6%96%97%E6%95%B4%E4%BD%93%E5%BC%8F%E8%AF%B4%E6%98%8E%E4%B9%A6_1652262099191.pdf