Carrier rollers, the top rollers, support the track chain on its return run across the top of the track frame, keeping the chain aligned and stopping it sagging and slapping between idler and sprocket. PartsForMachines supplies carrier rollers matched by machine make and model, with the rest of the undercarriage system, bottom rollers, idlers, sprockets, track adjusters and guides, listed in the same section.
Rollers sell by machine fitment, and the confirming data sits on each product page: tread diameter, overall width and length, mounting style, with stem-mount and flange-mount the common patterns, and bolt details. Sealed, lubricated-for-life construction is the standard, so a leaking carrier roller has finished its service life. A machine carries far fewer carrier rollers than bottom rollers, but their failure is loud and destructive: a seized top roller flat-spots, the chain saws into it, and the slapping chain accelerates wear on links and frame. Compare lines up options where patterns overlap, and Ask Simon confirms fitment from the machine model and serial.
The wear checks are simple: tread diameter against the service limit, free rotation by hand with the chain slack, and no oil weep at the seals. Carrier rollers are usually replaced during the same intervention as chain or bottom-roller work, since access is open and the parts are cheap relative to the labour of a second visit.
Undercarriage jobs run urgent, so confirm fitment first: send the machine make, model and serial via WhatsApp 07754288583 for availability on carrier rollers and the matching undercarriage parts.
| Part Type | Carrier Roller |
|---|---|
| Machine | Komatsu PC340-6 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Komatsu PC340-7 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Komatsu PC340LC-6 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Komatsu PC340LC-7 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Komatsu PC340NLC-6 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Komatsu PC340NLC-7 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Komatsu PC350LC-7 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Komatsu PC360-7 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Komatsu PC360LC-7 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Hitachi EG30 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Replaces | Morooka 1-38340-0010 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Morooka MST300VD |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Yanmar C50R-2 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Yanmar C50R-1 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Replaces | Hitachi 9245117 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Replaces | Hitachi 9245169 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Replaces | Hitachi 9305980 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Hitachi ZX270-3 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Hitachi ZX270LC-3 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Hitachi ZX280LC-3 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Hitachi ZX290LC-5 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Hitachi ZX300LC-6 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Hitachi ZX330-3 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Hitachi ZX330LC-3 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Hitachi ZX350-3 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Hitachi ZX350LC-3 |
| Manufacturer | Astrak |
| Part Type | Carrier Roller |
|---|---|
| Machine | Hitachi ZX350LC-5 |
| Manufacturer | Astrak |
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