21N-27-31120 Planetary Gear is a genuine Komatsu final drive component designed for PC1100 and PC1250 series excavators. This 24-tooth satellite gear operates within the planetary gear system of the travel reduction gearbox, transmitting torque and distributing load between the sun gear and ring gear to provide the final speed reduction required for machine propulsion.
| Item | Specification |
|---|---|
| Product Name | PLANETARY GEAR (Satellite Gear) |
| Part Number | 21N-27-31120 |
| Brand | Komatsu |
| Machine Model | Komatsu PC1100-6, PC1250-7, PC1250-8, PC1250LC-7/8, PC1250SP-7/8, PC1250SE-7 Excavators |
| Weight | 21.03 kg |
| Material | High-strength alloy steel with precision gear-tooth machining and heat treatment |
| Condition | Brand New – Genuine |
| Warranty | 6 Months |
| Packaging | Standard Export Carton |
| Availability | Generally in stock |
| Origin | China |
This planetary gear is compatible with:
If you‘re unsure whether this planetary gear matches your machine, simply provide your machine serial number (S/N), and our technical team will verify compatibility before shipment.
The 21N-27-31120 planetary gear is designed for heavy equipment operating under demanding conditions, including:
Its robust construction and precision engineering make it a reliable choice for maintaining final drive 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 planetary gears, we supply a full range of engine components, hydraulic parts, undercarriage parts, filters, and electrical components for Komatsu machinery.
Every planetary gear is professionally packed to ensure safe international transportation.
Packaging options include:
Each unit is securely packaged 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 21N-27-31120 PLANETARY GEAR for KOMATSU PC1250?
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 planetary gear is correct for my machine?
A: To ensure perfect compatibility, please provide your machine model and serial number (S/N) to our team. This gear is designed for PC1100 and PC1250 series models. We will verify the match for you promptly.
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 function of this planetary gear?
A: This satellite gear operates within the travel reduction gearbox, transmitting torque and distributing load to provide final speed reduction for machine propulsion.
Q: What is the weight of this planetary gear?
A: The approximate weight is 21.03 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.
