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.
Item NO.:
234-4440Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time：
2-3 DAYSOil leakage, pressure loss, and unstable travel performance can lead to downtime and increased maintenance costs. This swivel joint is manufactured with OEM-level precision, featuring high sealing performance, smooth rotation capability, and durable construction for long service life. Backed by RITO’s stable supply chain and professional technical team, we provide fast technical support and rapid replacement solutions to keep your equipment running efficiently.
| Part Number | 234-4440 |
|---|---|
| Part Name | Travel Motor Lines Swivel |
| Compatible Brand | Caterpillar |
| Applicable Models | CAT 336D, 325D, 330D |
| Application | Excavator hydraulic system |
| Material | High-strength alloy steel |
| Product Color | Metallic gray/Yellow |
| Working Temperature | -20°C to 100°C |
| Key Function | Transfer hydraulic oil during upper structure rotation |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |
Ensures continuous hydraulic flow between upper and lower structures during rotation.
Prevents oil leakage and maintains stable system pressure under working conditions.
Supports continuous rotation with minimal resistance and stable performance.
Manufactured to original specifications for easy installation and reliable compatibility.
FAQ
A: Oil leakage, pressure loss, unstable travel, and abnormal noise usually indicate seal wear or internal damage.
A: Ensure proper sealing, correct hose connection, and clean hydraulic oil to prevent contamination.
A: We provide original, OEM, and high-quality aftermarket versions with stable supply capability.
A: Please verify part number (234-4440) and machine models CAT 336D / 325D / 330D.
Q:Can it handle continuous rotation conditions?
A: Yes, it is designed for stable oil transfer under continuous rotation and heavy-duty working conditions.
Q:Why Choose RITO?
A:Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies
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