Caterpillar 378-9517 3789517 gearbox for Caterpillar 320GC excavator

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Caterpillar 378-9517 3789517 gearbox for Caterpillar 320GC excavator - Machineryline
Caterpillar 378-9517 3789517 gearbox for Caterpillar 320GC excavator | Image 1 - Machineryline
Caterpillar 378-9517 3789517 gearbox for Caterpillar 320GC excavator | Image 2 - Machineryline
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Type: gearbox
Part number: 378-9517 / 488-3075
Catalog number of the original: 3789517 4883075
Spare part type: original spare part
Location: China12798 km to "United States/Columbus"
Placed on: Jun 9, 2025
Machineryline ID: UA46036
Condition
Condition: remanufactured

More details — Caterpillar 378-9517 3789517 gearbox for Caterpillar 320GC excavator

On sale: Swing Gearbox for CAT 320GC
Part Numbers: 378-9517 / 488-3075
Supplier: RICHTONE
Price: on request

OEM swing gearbox for CAT 320GC excavators. Provides controlled rotary motion for the upper structure with high torque and smooth performance. Designed to withstand high shock loads and continuous duty in demanding excavation and construction environments. Built to Caterpillar specifications for precise fit and long-term durability.

Key benefits:
• High torque transmission with smooth swing control
• Fully compatible with CAT 320GC swing system
• Reinforced gear train for extended service life
• Ideal for OEM replacement or complete upper structure overhaul

Specifications:
Type: swing reduction gearbox
Design: planetary gear system
Mounting: standard bolt-on
Compatibility: CAT 320GC

Contact the RICHTONE team to request a quote and verify stock availability.

Keywords: swing gearbox CAT 320GC, 378-9517, 488-3075, swing reducer CAT, CAT 320GC upper structure parts, excavator swing gear, Caterpillar gearbox replacement, RICHTONE spare parts
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