285-5509 HUB is a heavy-duty reaction hub with 108 external teeth, designed for the final drive, brake, and wheel systems of Caterpillar 777D, 777F, and 777G Off-Highway Trucks. As a service component in the final drive group, it works within the drivetrain assembly to support reliable power transmission under high torque and impact loads.
| Item | Specification |
|---|---|
| Product Name | HUB / 108 External Teeth Reaction Hub |
| Part Number | 285-5509 |
| Brand | Caterpillar (CAT) |
| Machine Model | CAT 777D / 777G / 777F |
| Weight | 125 kg |
| Material | Carbon Steel |
| Condition | Brand New – Genuine |
| Warranty | 6 Months |
| Packaging | Standard Export Carton |
| Availability | Generally in stock |
| Origin | China |
Key advantages include:
The 285-5509 HUB is designed for:
Caterpillar’s official parts information also lists 285-5509 for related equipment such as the 776C, 776D, 777E, and 777. Because equipment configuration can affect compatibility, customers can provide the machine serial number (PIN) for verification before ordering.
The 285-5509 HUB is suitable for heavy equipment operating in demanding environments, including:
It is particularly suitable for off-highway trucks involved in heavy material hauling, aggregate transportation, overburden removal, and continuous mining operations where final drive components are exposed to substantial loads and repeated impacts.
YLCM specializes in supplying construction and mining machinery parts to customers worldwide, providing reliable sourcing, efficient delivery, and professional technical support.
We provide:
Our product range includes final drive components, drivetrain parts, planetary gears, transmission components, hydraulic parts, engine components, bearings, filters, seals, and other replacement parts for Caterpillar and major construction equipment brands.
For large maintenance projects, customers can also source multiple drivetrain components through YLCM, helping simplify procurement and shipment coordination.
YLCM provides professional export packaging according to the product size, weight, quantity, and destination.
Packaging options include:
For international transportation, we can arrange sea freight, railway transportation, land transportation, and multimodal logistics solutions according to customer requirements.
Q1: What is 285-5509?
A: 285-5509 is a 108 External Teeth Reaction Hub used in the Caterpillar final drive, brake, and wheel system.
Q2: Which CAT machines use 285-5509?
A: It is listed for CAT 777D, 777F, and 777G, with additional applications on several related models.
Q3: How many external spline teeth does the hub have?
A: The hub has 108 external spline teeth and 90 internal spline teeth.
Q4: What material is 285-5509 made from?
A: Caterpillar’s parts information specifies Carbon Steel for this component.
Q5: What system is this hub used in?
A: It is a service component for the final drive group and is used in final drive, brake, and wheel applications.
Q6: How can I confirm compatibility with my machine?
A: Send us your machine model, serial number (PIN), or original part number. Our technical team can verify the application before shipment.
Q7: How will the hub be packaged?
A: Depending on the order, we can use export-standard wooden crates, shock-resistant protection, moisture-proof protection, and rust-proof protection.
Q8: Can YLCM supply other CAT final drive parts?
A: Yes. We supply planetary carriers, gears, hubs, shafts, bearings, transmission components, and other Caterpillar drivetrain parts.
Looking for 285-5509 HUB for CAT 777D/777G/777F?
Contact YLCM to receive:
Please send us the part number, required quantity, machine model, and destination. Our team will check your requirements and provide a competitive quotation and suitable logistics solution.
