Secure your heavy-duty fluid transmission loops with the precision-bent 330-4655-Y main pump oil pipe. Custom-fabricated for CAT 320D, 325D, 330D, and 336D hydraulic systems, this steel tube guarantees leak-free volumetric efficiency, optimal flow velocity, and enduring system integrity.

Product Specifications
| Part Number |
330-4655 |
| Part Name |
Main Pump Hydraulic Lines Tube / Oil Pipe |
| Compatible Brand |
Caterpillar |
| Applicable Models |
CAT 320D, 325D, 330D, 336D |
| Application |
Excavator hydraulic system |
| Material |
High-Grade Carbon Steel Tubing |
| Product Color |
Matte Black |
| Working Temperature |
-40 to 125 Degrees Celsius |
| Key Function |
High-Pressure Hydraulic Fluid Transport and Directional Routing |
| Condition |
100% New, Aftermarket / OEM Quality |
| Packaging |
Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |
Key Features & Advantages
High-Pressure Seamless Wall Construction
Withstands extreme hydraulic system pressure spikes without expanding or developing structural stress fractures.
Vibration-Dampening Geometry Profile
Pre-bent to exact OEM configurations to mitigate harmonic resonance and prevent joint fatigue under heavy loads.
Anti-Corrosive External Zinc Plating
Resists harsh environmental moisture, chemical exposure, and abrasive site debris to eliminate surface rust.
Flawless Flange Port Sealing
Features precision-machined connection ends ensuring flush mounting interfaces that prevent high-pressure oil weeping.

FAQ
Q: What are the primary fault symptoms indicating this hydraulic pump oil pipe needs immediate replacement?
A: Visible oil weeping near the fittings, wet dust accumulation along the tube surface, deep external scoring from structural rubbing, or sudden drops in hydraulic operating pressure point to localized wall thinning or hairline fatigue cracks.
Q: What are the critical technical installation requirements to ensure maximum service life?
A: Technicians must ensure all clamping brackets are correctly positioned and torqued to prevent line chafing. Clean the mating ports thoroughly and always replace the inner O-rings with new, fluid-compatible seals before bolting down the flanges.
Q: How can procurement managers verify exact fitment and compatibility before ordering?
A: Cross-reference your Caterpillar equipment configuration with part number 330-4655-Y. Because main pump layouts can vary by attachment configuration, confirming the specific hydraulic pump model or arrangement number with us guarantees a precise fit.
Q: How does this hydraulic main pump oil pipe perform under extreme mining environment conditions?
A: The high-yield steel tubing maintains full volumetric rigidity and ductile strength during drastic temperature swings. It actively prevents thermal expansion failure and structural splitting across tough working ranges from -40 to 125 Degrees Celsius.
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 Companie