VEVOR Bucket Tooth Bar, 72'', Heavy Duty Tractor Bucket 9 Teeth Bar for Loader Tractor Skidsteer, 4560 lbs Load-Bearing Capacity Bolt On Design, for Efficient Soil Excavation and Bucket Protection

Please see the bolt hole measurements in below picture, the link is valid in 3 days: https://we.tl/t-pI1H4QJknO

The center-to-center measurement for the bolt hole on the 72" bar is 116mm.

No,this doesn't fit a kioti KL5520 bucket.

While the product information does not explicitly mention included installation instructions, it highlights that the Happybuy 72'' Bucket Tooth Bar is designed for easy bolt-on installation. The creative bolt-clamping design ensures a stable and shake-free connection to your bucket.

According to the product description, it employs fully automated welding technology which ensures the joints are seamlessly connected offering stability and resistance to breakage even during prolonged use.