Products

RITO Swing Gearbox 199-4602 Swing Reduction Gear 1994602 Slewing Gearbox CAT320B Excavator Swing Device CAT320C CAT320D

Heavy clicking noises or excessive play during cabin rotation mean your CAT320B slewing gearbox is failing. Internal gear wear can lead to total rotation lockups, halting earthmoving tasks immediately. Don't wait for fractured planetary gears to destroy the swing bearing and cause costly field repair bills.

  • Item NO.:

    199-4602
  • Order(MOQ):

    1
  • Payment:

    T/T, WESTERN UNION, CHINESE BANK,PAYPAL
  • Product Origin:

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Secure stable, high-torque cabin rotation with our heavy-duty 199-4602 Swing Gearbox. This industrial-grade reduction gear assembly offers wholesalers and fleet buyers excellent wear resistance, precise gear meshing, and robust structural reliability across CAT320C and CAT320D platforms.

199-4602 Swing Gearbox

 
Product Specifications

Part Number  199-4602
Part Name Swing Gearbox Assembly
Compatible Brand CAT
Applicable Models CAT320B, CAT320C, CAT320D Excavator
Application Excavator hydraulic system
Material Natural Steel Silver
Product Color Technical Yellow
Working Temperature -25 to 115 degrees Celsius
Key Function Reduces swing motor speed while multiplying torque to drive the excavator upper structure
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

High-Torque Planetary Design

Multi-stage planetary gearing distributes rotational forces evenly to withstand high inertial swing impacts.

Leak-Free

Heat-Treated Steel Gears

Precision-cut gears undergo vacuum carburizing and induction hardening to eliminate tooth breakage under heavy load.

Direct Fitment

Heavy-Duty Output Shaft

Thickened slewing drive pinion handles high radial stresses smoothly during rapid bucket swinging shifts.

Rigorous Testing

Global Supply Tiering

We offer Original, OEM, and high-performance Aftermarket options to provide flexible procurement strategies for diverse regional markets.

 

Excavator Hydraulic Part

FAQ


Q: What warning signs tell a machine operator that their CAT320C swing gearbox needs an overhaul?
A: Listen for metallic grinding or clunking sounds when starting or stopping rotation, or look for excessive "drift" where the upper cabin fails to hold its position on a slope. Checking the gearbox dipstick for thick metallic flake contamination or dark, burnt gear oil also confirms gear wear.
 
Q: What are the strict lubrication mandates for commissioning this 199-4602 reduction gear?
A: After lowering the gearbox into the chassis and securing the mounting bolts, you must fill it with premium extreme-pressure gear oil through the fill plug. Check the level via the dipstick only after the oil has fully settled, and change the break-in oil after the first fifty hours of service.
 
Q: How do procurement managers ensure this swing device fits across different 20-ton excavator generations?
A: This gearbox is engineered to cross-reference with part number 199-4602. Because mounting bolt patterns and pinion gear tooth counts can vary between a CAT320B, 320C, and 320D, sharing your excavator's full serial prefix allows our team to double-verify compatibility before dispatch.
 
Q: How does this slewing gearbox perform when running heavy hydraulic attachments like log grapples or demolition shears?
A: It is engineered with heavy-duty tapered roller bearings that absorb the continuous, punishing lateral vibrations caused by heavy attachment work. The robust casing prevents structural flexing, maintaining true gear alignment during demolition or logging tasks.
 
Q: What quality options are available?

A: We provide original, OEM, and high-quality aftermarket versions with stable supply capability.

Q:Why Choose RITO?

A:Listed Factory

Stable&Reliable Quality

OEM Factory for Chinese Top Excavator Brands

Supplier to Fortune 500 Companies
Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

Related Products

320CLZBYG Stick cylinder
RITO Excavator Stick Cylinder 320CLZBYG ZX120 ZX200 ZX210 EX200-1 Hydraulic Boom Cylinder Arm Cylinder for Construction Machinery

RITO Excavator Stick Cylinder is built for ZX120, ZX200, ZX210, EX200-1, and 320CLZBYG. For distributors and agents: high interchangeability reduces inventory complexity. Mining customers benefit from reinforced sealing and shock resistance, lowering downtime and maintenance costs.    

View More
527-0741 527-0742 Hydraulic Main Pump
RITO Hydraulic Pump Coupling Hub 527-0741 527-0742 for Caterpillar CAT 336GC 336D 15 Teeth Flange Coupling Group

This RITO 527-0741 527-0742 Hydraulic Pump Coupling Hub is a key transmission component for Caterpillar CAT 336GC and 336D excavators, designed to connect the engine and hydraulic pump with stable torque transfer. Featuring a 15-tooth flange structure, it ensures precise alignment, smooth power delivery, and reliable operation in demanding construction environments.

View More
124-1607 Hydraulic Oil Cooler
RITO Hydraulic Oil Cooler 124-1607-OT CAT 320C 320D 325D 330D Excavator Oil Cooler Core Radiator Assembly for Caterpillar

This RITO 124-1607-OT Hydraulic Oil Cooler is a key cooling component for Caterpillar CAT 320C, 320D, 325D, and 330D excavators, designed to effectively dissipate heat from hydraulic oil and maintain optimal system temperature. It ensures stable oil viscosity, protects internal components, and supports reliable operation in demanding construction environments.

View More
234-4440
RITO Excavator Swivel Joint 234-4440 CAT 336D 325D 330D Travel Motor Lines Hydraulic Rotary Union for Caterpillar

This RITO 234-4440 Swivel Joint (Rotary Union) is a critical hydraulic component for Caterpillar CAT 336D, 325D, and 330D excavators, designed to transfer hydraulic oil between the upper structure and undercarriage during continuous rotation. It ensures stable oil flow to travel motors, maintaining smooth operation and reliable performance in construction environments.

View More
585-9230 Solenoid Valve
RITO Original Solenoid Valve 585-9230 Excavator Hydraulic Solenoid Valve Proportional Valve for CAT

Hydraulic lag and erratic pressure in CAT excavators often signal a failing proportional valve, causing costly site delays. The 585-9230 eliminates these inefficiencies. Precision-engineered for mining and heavy construction, it prevents system overheating and jerky boom movements.

View More
585-9230 Solenoid Valve
RITO Original Solenoid Valve 585-9230 Excavator Hydraulic Solenoid Valve Proportional Valve for CAT

Hydraulic lag and erratic pressure in CAT excavators often signal a failing proportional valve, causing costly site delays. The 585-9230 eliminates these inefficiencies. Precision-engineered for mining and heavy construction, it prevents system overheating and jerky boom movements.

View More
179-6916 Spring
RITO Excavator spring Coil Spring 179-6916 spring for CAT

The RITO Excavator Coil Spring 179-6916-Y is designed for heavy-duty applications in CAT excavators, offering reliable and long-lasting performance in demanding work environments. This high-quality spring ensures consistent and efficient load-bearing capability, reducing wear and tear on critical excavator components. The 179-6916-Y is essential for maintaining optimal machine performance in industries such as construction and mining. By minimizing downtime and maintenance costs, this coil spring enhances productivity and contributes to the long-term durability of your fleet. Designed for seamless compatibility with various CAT excavator models, it provides an ideal replacement solution for wholesale distributors and agents.

View More
291-0061 Fan Piston Pump
RITO Hydraulic Axial Piston Pump 291-0061 Hydraulic Fan Piston Pump for Excavator Main Pump Assembly

Unstable fan speeds and hydraulic overheating often stem from inefficient pump pressure. In grueling mining sites, a failing fan pump leads to engine derating and massive downtime. The 291-0061 solves these thermal inconsistencies, preventing the costly "cascading failures" that plague heavy excavator fleets.

View More
Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

Leave A Message

Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

Home

Products

whatsApp

contact