Xiamen Doozer is a professional China manufacturer of excavator track rollers and crawler undercarriage parts. We supply replacement track rollers for construction, mining, quarrying, and other heavy-duty applications. With direct factory manufacturing and export experience, Xiamen Doozer provides reliable undercarriage solutions for equipment dealers, distributors, contractors, and machinery owners worldwide.
Durable Excavator Track Rollers
The track roller is one of the most important components of an excavator undercarriage system. It supports the machine’s operating weight and guides the track chain along the track frame during movement. Since track rollers are constantly exposed to heavy loads, vibration, friction, and uneven ground, reliable construction and proper manufacturing are essential.
Xiamen Doozer produces track rollers designed for demanding working conditions. Our rollers are manufactured with attention to dimensional accuracy, structural strength, wear resistance, and smooth track movement. This helps provide stable performance during continuous excavator operation.
High-Strength Steel Construction
Material quality plays an important role in track roller performance. Xiamen Doozer uses high-strength steel materials suitable for heavy equipment undercarriage applications. Advanced machining and controlled heat-treatment processes are applied to improve the durability of critical working surfaces.
The roller body and key working areas are processed according to required specifications. Proper heat treatment helps improve resistance to wear, impact, and repeated loading. This makes the rollers suitable for excavators operating in construction sites, quarries, mines, and other challenging environments.
Precise Manufacturing and Sealing
A track roller requires accurate dimensions and dependable internal components to operate correctly with the track chain. Xiamen Doozer pays close attention to machining precision during production to help ensure proper installation and track alignment.
Reliable sealing is also important because rollers operate close to the ground and can encounter dust, mud, water, and abrasive materials. Appropriate sealing components help protect internal parts and support consistent operation in harsh working environments.
Before shipment, products undergo inspection to verify important specifications and overall manufacturing quality. Buyers can also provide their machine model or OEM part number so the correct track roller can be identified.

Track Rollers for Major Excavator Brands
Xiamen Doozer supplies track rollers for a wide range of crawler excavators and heavy construction equipment. Our undercarriage product range also includes carrier rollers, front idlers, sprockets, track chains, track shoes, track adjusters, and related components.
We support replacement-part requirements for popular equipment brands such as Caterpillar, Komatsu, Hitachi, Volvo, Hyundai, Kobelco, Doosan, SANY, Shantui, and other crawler machinery.
For distributors and wholesalers, purchasing multiple undercarriage components from one manufacturer can simplify sourcing and improve order management.
Direct Factory Supply from China
Xiamen Doozer provides direct factory supply for international customers looking for excavator track rollers and other undercarriage parts. We support wholesale purchasing, mixed orders, container shipments, and different sourcing requirements based on customer needs.
Our team can help buyers identify suitable track rollers according to machine model, OEM number, dimensions, and application. This helps reduce the risk of selecting incompatible replacement parts.
If you are sourcing excavator track rollers from China, Xiamen Doozer offers a combination of direct factory production, controlled manufacturing, competitive pricing, and export support. Send us your excavator model or OEM part number to request a quotation.
| OEM Part Number | Product | Compatible Machine Models | Flange Type | Tread Diameter | Mounting Width |
|---|---|---|---|---|---|
| 8E-5032 | Excavator Track Roller | Caterpillar 320B / 320C / 320D | Single Flange | 150 mm | 215 mm |
| 508-9458 | Excavator Track Roller Group | Caterpillar 320D L / 320E L / 323D L | Single Flange | 155 mm | 250 mm |
| 507-7552 | Excavator Track Roller Group | Caterpillar 320D / 320D2 / 320D3 | Single Flange | 150 mm | 215 mm |
| 333-5606 | Excavator Track Roller | Caterpillar 306 / 306E | — | 100 mm | 126.5 mm |
| 265-7674 | Excavator Track Roller Group | Caterpillar 305C / 305D / 305E | Single Flange | 100 mm | 123 mm |
| 266-8793 | Excavator Track Roller Group | Caterpillar 303.5E / 304E / 305E2 CR | Single Flange | 85 mm | — |
| 490-5283 | Excavator Track Roller Group | Caterpillar 330D / 336D / 336E | Single Flange | 180 mm | 299.5 mm |
| 183-2874 | Excavator Track Roller Group | Caterpillar 330D / 336D / 340D | Single Flange | 177.5 mm | 296.26 mm |
| 620-6129 | Excavator Track Roller Group | Caterpillar 336D2 / 336D2 XE / 340 | Single Flange | 177.5 mm | 296.26 mm |
| 604-1761 | Excavator Track Roller Group | Caterpillar 320 / 323 / 326 GC | Single Flange | 150 mm | — |
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