561-88-70304 / 561-22-78503 Final Drive Assembly is a genuine Komatsu drivetrain component designed for the HD785-7 rigid dump truck. This final drive serves as the last stage of the power transmission system, reducing speed from the differential and increasing torque to drive the rear wheels under the heavy payloads typical of mining haul cycles.
| Item | Specification |
|---|---|
| Product Name | FINAL DRIVE ASSEMBLY |
| Part Number | 561-88-70304 / 561-22-78503 |
| Brand | Komatsu |
| Machine Model | Komatsu HD785-7 Rigid Dump Truck |
| Weight | Approx. 3,800–4,000 kg (assembly, varies by configuration) |
| Material | High-strength hardened steel gears and cast iron housing |
| Condition | Brand New – Genuine |
| Warranty | 6 Months |
| Packaging | Standard Export Carton |
| Availability | Generally in stock |
| Origin | China |
This final drive assembly is compatible with:
Part Number Note: 561-88-70304 is identified as the right-hand final drive assembly for HD785-7 . 561-22-78503 is also referenced for HD785-7 final drive applications . Please verify your machine serial number and the specific side (left/right) required before ordering.
If you’re unsure whether this final drive matches your machine, simply provide your machine serial number (S/N), and our technical team will verify compatibility before shipment.
The 561-88-70304 / 561-22-78503 final drive assembly is designed for heavy equipment operating under demanding conditions, including:
Its robust construction and planetary gear design make it a reliable choice for maintaining drivetrain integrity in continuous production environments.
YLCM specializes in supplying genuine Komatsu parts and high-quality aftermarket alternatives to customers worldwide.
We provide:
In addition to final drive assemblies, we supply a full range of engine components, hydraulic parts, undercarriage parts, filters, and electrical components for Komatsu machinery.
Every final drive assembly is professionally packed to ensure safe international transportation.
Packaging options include:
Each unit is securely packaged in a reinforced wooden crate to minimize transportation risks and ensure arrival in excellent condition.
We offer flexible shipping solutions to meet your project timelines:
Our logistics team will confirm the final lead time and shipping solution based on your destination.
Looking for the 561-88-70304/561-22-78503 FINAL DRIVE ASSEMBLY for KOMATSU HD785?
Contact YLCM today to receive:
Our experienced sales team will respond promptly with a competitive quotation and professional service tailored to your project requirements.
Q: Is this a genuine Komatsu part?
A: We supply both genuine Komatsu parts and high-quality aftermarket alternatives. Please contact us with your preference, and we will be happy to assist.
Q: How do I confirm this final drive is correct for my machine?
A: To ensure perfect compatibility, please provide your machine model and serial number (S/N) to our team. This assembly is referenced for HD785-7 models. We will verify the match and confirm the correct side (left/right) before shipment.
Q: What is the warranty on this product?
A: This product comes with a standard 6-month warranty against manufacturing defects.
Q: What is the typical shipping time?
A: This item is generally in stock. The final lead time will be confirmed when we provide your official quote, based on your destination and shipping method preference.
Q: What is the difference between 561-88-70304 and 561-22-78503?
A: 561-88-70304 is identified as the right-hand (RH) final drive assembly for HD785-7 . 561-22-78503 is also referenced as a final drive assembly for the same model . Please confirm the specific side and part number required for your machine with our technical team.
Q: What is the weight of this final drive assembly?
A: The approximate weight varies by source and configuration, ranging from approximately 3,800 kg to over 4,000 kg .
Q: Do you offer technical support for installation?
A: Yes, our professional technical support team is available to assist you both before and after the sale.
