Caterpillar 378-9517 3789517 gearbox for Caterpillar 320GC excavator







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The most common type of fraud. Unfair sellers may request a certain amount of advance payment to “book” your right to purchase equipment. Thus, fraudsters can collect a large amount and disappear, no longer get in touch.
- Transfer of prepayment to the card
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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