315D or 315C swing sluggish, motor overheating or leaking? A worn 199-4600 swing motor assembly allows hydraulic bypass inside the motor, causing the swing circuit relief to chatter and oil temperature to climb until function is impaired. RITO's complete swing assembly restores 315D/315C swing torque and eliminates the bypass that drives temperature up.
Item NO.:
199-4600-OTOrder(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In Stock199-4600 Swing Motor Assembly for Caterpillar 315D and 315C excavators. Engineered specifically for the 315D/315C swing circuit pressure and flow specification, this assembly integrates the Kawasaki-pattern axial piston motor with the Caterpillar 315-series swing planetary gearbox. Motor displacement, brake valve setting and gearbox ratio are all calibrated for the 315D/315C duty cycle.
| Part Number | 199-4600 |
|---|---|
| Part Name | Swing Motor Assembly |
| Compatible Brand | Caterpillar |
| Applicable Models | 315D, 315C Excavator |
| Application | Swing drive assembly for 315D / 315C: motor, planetary gearbox and brake valve combined |
| Material | Alloy steel rotating group and planetary gears, sealed cast housing |
| Product Color | Industrial finish |
| Working Temperature | -30°C~+80°C |
| Key Function | Provides full swing function for 315D and 315C: hydraulic motor torque, planetary reduction and brake |
| Condition | 100% New Aftermarket OEM Quality |
| Packaging | Wooden Case Reinforced Carton Neutral Packing Customized Box |
Motor displacement and brake valve set-pressure calibrated to the 315D/315C swing circuit specification for correct swing speed and deceleration behaviour on this model.
Cylinder block bore-to-piston clearance maintained to minimize motor bypass, keeping case-drain flow within OEM limit and preventing premature hydraulic oil overheating.
Factory-set swing brake valve provides the braking torque that stops the 315D/315C upper structure accurately without cab overswing or jerk.
Motor flange bolt pattern, port sizes and gearbox housing mounting dimensions verified for both 315D and 315C variants for direct bolt-on replacement.
FAQ
Q: Can the same 199-4600 assembly be used on both 315C and 315D?
A: Yes, the 199-4600 is confirmed for both 315C and 315D. Verify the hydraulic port sizes and motor mounting flange match your specific machine before ordering.
Q: What causes 199-4600 swing motor failure on 315D?
A: The most common causes are contaminated hydraulic oil scoring the barrel and piston shoes, prolonged operation at maximum swing pressure against the relief valve, and swing brake valve wear causing uncontrolled deceleration shock on the gearbox.
Q: Should I change the hydraulic oil filter before fitting the new 199-4600?
A: Always replace the return-line and case-drain filters before fitting a new swing motor assembly. Debris from the failed old motor circulates in the system and will score the new rotating group within hours if not removed.
Q: How to confirm 199-4600 is correct for my 315D or 315C?
A: Match the motor flange bolt pattern and hydraulic port sizes. Provide the machine model and serial number to our team for cross-reference.
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
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
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
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
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
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
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
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
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 MoreLeave A Message
Scan to wechat :
