Big Discount Idler Rollers Yanmar Excavator - KUBOTA KX121-3 IDLER RD118-21300 – Junhua
Big Discount Idler Rollers Yanmar Excavator - KUBOTA KX121-3 IDLER RD118-21300 – Junhua Detail:
Product Description
This is the aftermarket replacement idler for Kubota mini excavator.
This is the idler designed to tension and tighten the rubber track and expands as you grease the tensioner to tighten the track.
This idler assembly comes fully assembled with the bearing ready for installation, just reuse your existing bolts to bolt to the tensioner.
This idler has yokes that extend out past the length of the idler wheel diameter. It comes exactly as pictured and does not include the actual tensioner or spring.
This idler assembly (RD118-21300) is known to fit these Kubota mini excavators:
• Kubota KX121-3
• Kubota KX121-3SS
• Kubota KX121-3ST
• Kubota KX040-4
Alternate Part Number
| Kubota | RD118-21300, RD148-21300, RD158-21302 |
Alternate Models
| Kubota | KX121-3, KX121-3SS, KX121-3ST, KX040-4 |
Product detail pictures:




Related Product Guide:
Our focus on should be to consolidate and enhance the quality and repair of present products, in the meantime constantly establish new products to meet unique customers' requires for Big Discount Idler Rollers Yanmar Excavator - KUBOTA KX121-3 IDLER RD118-21300 – Junhua, The product will supply to all over the world, such as: Georgia, Japan, Vietnam, In order to make more people know our products and to enlarge our market, we have devoted a lot of attention to technical innovations and improvement, as well as replacement of equipment. Last but not the least, we also pay more attention to training our managerial personnel, technicians and workers in planned way.
We are a small company that has just started, but we get the company leader's attention and gave us a lot of help. Hope we can make progress together!




