Swing Motor
199-4602-OTTO
199-4602-OTTO
199-4602-OTTO
199-4602-OTTO

OTTO 199-4602 Swing Gearbox Reduction for Caterpillar CAT 320C 320D Excavator Swing Drive Motor Spare Parts

Maximize your excavator's swing efficiency with the OTTO 199-4602 Swing Gearbox Reduction, a premium aftermarket replacement engineered for heavy-duty durability and precise OEM-grade fitment. This high-strength swing drive component restores smooth, stable rotary power to your Caterpillar excavator, providing a budget-friendly alternative to genuine OEM spare parts.


  • Order(MOQ)::

    1pc
  • Goods Stock::

    100
  • Payment::

    T/T, Western Union, L/C, Paypal, etc
  • Product Origin::

    China
  • Shipping Port::

    Huangpu, Guangzhou
  • Lead Time::

    In Stock
  • Part No: :

    199-4602
  • Model::

    E320D
  • Application::

    EXCAVATOR

OTTO 199-4602 Swing Gearbox Reduction for Caterpillar CAT 320C 320D Excavator Swing Drive Motor Spare Parts



The OTTO 199-4602 Swing Gearbox Reduction is a dedicated aftermarket swing drive spare part designed exclusively for Caterpillar excavators. As a core component of the excavator’s swing motor system, it delivers reliable torque reduction and power transmission to support steady upper structure rotation, a critical function for daily excavation, material handling and site operations. Manufactured to meet strict global industry standards, this swing gearbox ensures consistent rotary performance, exceptional wear resistance and long service life, making it an essential part for maintaining full operational productivity of CAT excavator equipment.



Technical Specifications


Parameter Item
Specific Specification
Product Name
Swing Gearbox Reduction / Swing Drive Reduction Gearbox
Part Number
OTTO 199-4602
Cross Reference
CAT OEM 199-4602
Compatible Brand
Caterpillar (CAT)
Machine Type
Hydraulic Excavator
Product Type
Swing Drive Reduction Gearbox (Matching Swing Motor)
Material
High-Strength Forged Steel / Heat-Treated Alloy Gears
Drive Type
Spline Shaft Connection (Swing Motor Matching)
Condition
Premium Aftermarket Replacement Spare Part
Application
Excavator Upper Structure Swing Rotation Control


Key Product Advantages


Perfect OEM Compatibility: Designed and machined to exact CAT OEM specifications for 320C and 320D series excavators, enabling direct drop-in installation with no modifications or adjustments needed. The mounting flange, spline shaft and bolt holes align perfectly with the original swing motor and excavator frame, streamlining installation and reducing downtime.
High Torque Transmission Efficiency: Built with precision-ground, heat-treated alloy steel internal gears and heavy-duty bearings, this swing gearbox delivers stable, high-torque output for smooth and responsive excavator rotation. It eliminates abnormal noise, shaking and slow swing speed, fully restoring the machine’s original rotary performance and work efficiency.
Heavy-Duty Wear Resistance: Constructed with reinforced high-strength alloy materials and hardened gear surfaces to withstand continuous heavy loads, high-frequency rotation and harsh construction site conditions. This rugged design minimizes gear wear and internal clearance issues, extending service life and cutting down long-term maintenance costs.
Stable Sealing Performance: Equipped with high-quality oil seals and precision-matched housing components to prevent hydraulic oil leakage and block external dust, mud and debris from entering the gearbox. This reliable sealing system maintains internal lubrication and protects internal parts from damage in tough working environments.


199-4602


Applications


This OTTO 199-4602 Swing Gearbox Reduction is specifically engineered for Caterpillar (CAT) hydraulic excavators, acting as a core swing drive spare part to support smooth upper structure rotation for various construction tasks including excavation, trenching and material handling.
Compatible Models:
  • CAT 320C Excavator
  • CAT 320D Excavator

About Otto



Guangzhou Otto Engineering Machinery Equipment Co.,Ltd, is a leading manufacturer and distributor of earthmoving parts and equipment in Guangzhou, China. It consists of 3 sister companies, serving many well-known distributors at home and abroad. With more than 20 years of production and distribution experience, OTTO has cultivated an experienced engineer team and a professional sales team, which can ensure the highest service with the highest quality, competitive price and prompt delivery. At the same time, it also supplies parts to the Chinese market, and many Chinese trading companies order from our company. 


Come with us, the best service, the best price, the best supplier you can enjoy !


Our Advantages



1.TECHNICAL SERVICE
We provide modification technology service, the product has been tested modifed, the engine can be directly installed and used.
2.CERTIFICATE
With Export certificate License.Double confirmation before shipping, if we sent the wroncparts we will send corect one.
3.SERVICE TEAM
With professional after-sale team, will help you to trace the goods. And our engineers will assist with any installation issues.
4.TECHNICAL SERVICE
Free Sample is acceptable.We serves manywell-known Hitachi Komatsu Caterpillar Kobelco in your country.


Access our comprehensive Excavator Parts Book covering 50,000+ validated OEM references for Komatsu, CAT, Hitachi, Volvo, and Doosan machinery – cross-search by part number (e.g., Komatsu 111-10-11310), machine model (CAT 320D/EX200-5), or component type (hydraulic pumps, track links, engine rebuild kits) with real-time 3D diagram support. Engineered for zero-mismatch fitment across critical assemblies including Isuzu 6BG1T/Cummins QSB6.7 power systems, ISO-certified undercarriages, and Komatsu HMB-series hydraulic valves, all backed by 24/7 technical interpretation and downloadable PDF catalogs with MOQ/pricing.


At OTTO, we specialize in excavator machinery parts with a global clientele. Our superior products have garnered acclaim worldwide for their quality, durability, and precision engineering. Customers praise our extensive range of parts, from travel reduction gearboxes to hydraulic components, ensuring optimal performance. With a commitment to excellence, we offer top-notch warranties, secure shipping options, and efficient delivery times. Join our satisfied customers worldwide who rely on OTTO for top-tier excavator parts and exceptional service.


FAQ



Q1:What can you buy from us?
A:We are professional dealer in excavator parts, such as desel engine assy,hydraulic pump, hydraulic control valvetravel
motor,diesel fuel system,gearbox parts, swing gearbox motor parts, electrical parts, engine parts, used
excavator,etc.

Q2:How long is the warranted time?
A:For natural broken,Warranty 3-12 months any quality problem will offer support freely.

Q3:What's the shipping way you can offer?
A:(1) Big order: By sea or by air.(It can reduce the costs).

(2) Small order:DHL,TNT,UPS,FEDEX,EMS,ARAMEX.


Q4:What's the terms of the transaction?
A:EXW,FCA,FAS,FOB, C&F,CIF,CPT,CIP,DAF,DES,DDP.
 
Q5:How about the lead time?
A:(1) ln stock: 1-3 days.Always in 24 hours.
(2) Out of stock: lt's according to your quantity, and we have cooperated with factory,We will let you know when we quote.

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