MSF-340 ZX450-3 Final Drive Gearbox 4637796 4352970 Hitachi Travel
Motor Assembly
The excavator travel assembly is the core component for machine
movement, consisting of a hydraulic motor, reduction gearbox,
sprocket, track chain, idler wheel, carrier roller, and track
roller. Its key function is to convert hydraulic energy into
mechanical power, enabling stable mobility across challenging
terrains.
Product Specifications
| Brand | Belparts |
| Spare Parts Name | Excavator Travel Motor Assy |
| Model | MSF-340 ZX450-3 |
| Part Number | 4637796 4352970 0657301 |
| Warranty | 6 Months |
| MOQ | 1pcs |
| Delivery Terms | After payment 3-7 days |
| Payment Terms | L/C, T/T, Paypal, Trade Assurance |
List of Spare Parts
| # | Part No | Part Name | Qty. | Price request |
|---|
| 4352970 | MOTOR; OIL (1/2) | 1 | |
| 1 | 0657301 | CASE ASS'Y | | |
| 1A | | CASE | 1 | |
>| 61 | 0419813 | RING; BACK-UP | | |

Our main products are Excavator Hydraulic Spare Parts, Hydraulic
Main Pump, Swing Motor, Travel Motor, Final Drive Ass'y, Swing
Device Ass'y, Swing Gearbox, Travel Gearbox, Gears, Regulators,
Relief Valve, Fan Motor and other hydraulic items with genuine and
aftermarket quality. Until now, our products have been exported to
more than 198 countries and regions, spreading all over the Middle
East, Southeast Asia, Africa, North America, South America, Europe
and Oceania with our own brand "Belparts", which is highly praised
by foreign customers and enjoys a high reputation.
Undercarriage Components and Functions
The excavator undercarriage is a critical component responsible for
supporting and propelling the entire machine, ensuring stable
operation across various terrains. Its primary functions include
providing power, supporting the machine's frame, transmitting
driving force, and ensuring mobility and stability in complex
environments.
Key Undercarriage Parts
- Travel Motor (Hydraulic Motor): Supplies driving force by converting hydraulic energy into
mechanical energy to rotate the tracks.
- Track (Crawler Belt): Directly contacts the ground, providing traction and stability.
- Sprocket (Drive Wheel): Connects the travel motor to the track, transmitting power to move
the track.
- Idler Wheel (Guide Wheel): Guides the track's movement and maintains proper alignment.
- Carrier Rollers (Bottom Rollers): Support the machine's weight and distribute pressure evenly.
- Track Rollers (Top Rollers): Support the upper part of the track, preventing sagging.
- Track Frame (Undercarriage Frame): Supports and secures all components, ensuring structural
stability.