Heavy-Duty Excavator Front Idler Assemblies & Replacement Idler Wheels

If your machine is frequently de-tracking or you’ve noticed severe vibration during travel, a worn replacement front idler is often the root cause. As the component that maintains track tension and guides the chain links, a heavy-duty idler assembly must absorb frontal impacts to protect the track frame. BeeSpareParts offers precision-cast and forged front idler wheels featuring high-spec bimetal bushings and seal groups to ensure long-lasting performance in muddy and rocky terrain.

A failing idler is often a sign of a larger issue with your tensioning system. We highly recommend inspecting your to ensure proper tension, or browsing our if your machine is sagging. Our front idlers are direct-fit alternatives to expensive OEM units, using induction-hardened tread paths to prevent flat spots and ensure smooth rotation for your excavator.

Whether you need a front idler for a 20-ton Komatsu, a mini-excavator idler for a Kubota, or a complete idler with yoke and spring, our parts are factory-tested for structural integrity and ready for fast international shipping. Keep your tracks aligned—order your premium front idler solution today.

Fits for:

• Major Brands: Caterpillar (CAT), Komatsu, Hitachi, Kobelco, Takeuchi, Kubota.

• Equipment Models: PC200, ZX210, SK200, CAT 320, and various mini-diggers