Track Rollers, Idlers & Sprockets for Sale

Rollers, idlers and sprockets wear with the chain — replacing them as a system keeps undercarriage life on schedule. At Buy Heavy Machines we source new, used and OEM-quality aftermarket rollers, idlers & sprockets for construction, mining and agricultural fleets in 120+ countries. Every part is checked for fit and quality before export, and shipped CIF to your nearest port.

Types of Track Rollers, Idlers & Sprockets for Sale

• Bottom (track) rollers — carry machine weight
• Top (carrier) rollers — support chain return
• Front idlers — guide & tension the track
• Sprockets & segments — drive the chain

Brands & compatibility we cover

We match OEM and premium aftermarket rollers, idlers & sprockets for: ITR · Berco · CTP · Caterpillar · Komatsu · Hitachi. Send us your machine model, serial number or the OEM part number and our team confirms the correct reference before you order.

Compatible machines

• Excavators
• Dozers
• Track loaders
• Crawler cranes

Why buy rollers, idlers & sprockets from Buy Heavy Machines

• Dealer-direct pricing — no middleman markup on OEM or aftermarket references.
• Worldwide CIF delivery — insured sea/air freight to 120+ countries, customs paperwork included.
• Fitment guaranteed — we verify part numbers against your machine before dispatch.
• One supplier for the whole machine — rollers, idlers & sprockets plus engines, hydraulics, undercarriage and tires in one order.

Frequently asked questions

When should sprockets be replaced?

Replace sprockets with the second chain, or when the drive teeth are hooked — worn sprockets destroy new chains fast.

How many rollers does an excavator have?

It varies by size — typically 5–9 bottom rollers per side plus 1–2 carrier rollers.

Explore related parts

• Track chains & shoes
• All undercarriage
• Final drives
• All heavy equipment spare parts
• Browse machines in stock

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Sources & Authoritative References

• Excavator (engineering)
• Heavy equipment
• Statista construction market