Excavator Parts: E320B 320C 320D Hydraulic Pump Coupling Assembly

Excavator Parts:  E320B 320C 320D Hydraulic Pump Coupling Assembly

✅ Why Choose Us

✔ Excavator Coupling Specialist
We supply a full range of excavator couplings including 40H, 45H, 50AS, and more — built for durability, precise fit, and high torque transmission.

✔ 12+ Years of Industry Experience
With over a decade of experience, we serve professional clients across construction, mining, and machinery industries in more than 80 countries.

✔ OEM-Grade Quality
All couplings are made of premium steel or alloy, heat-treated for strength and wear resistance, ensuring reliable operation under high-load conditions.

✔ Customization Available
We support non-standard size and design customization. Provide your drawing or sample — we’ll manufacture what you need.

✔ Global Shipping & Fast Delivery
We ship globally by air, sea, and express. Stock items can be dispatched within 3–5 working days.

✔ Technical Support & Model Matching
Our experienced team offers professional model matching and technical guidance to ensure compatibility and installation accuracy.

✔ Factory-Direct Price
We offer competitive pricing with no middlemen — maximizing your value without sacrificing quality.

More available products

1. Chassis spare parts: track shoes, track links, bolts, supporting wheels, sprockets, front idlers, idler pads, etc.

2. Engine spare parts: engine assembly, cylinder head, cylinder block, turbocharger, piston, piston ring, hardware, crankshaft, oil pump, fuel injection pump, water pump, AC generator, starter motor, etc.

3. Hydraulic spare parts: main valve, main pump, solenoid valve, boom cylinder, final drive, travel motor, slewing mechanism, slewing motor, etc.

4. Cab spare parts: cab assembly, display, controller, engine controller, wiring harness, seat, air conditioner, air compressor, etc.

5. Cooling parts: radiator, heat sink, air conditioner, compressor, aftercooler, water cooler, hydraulic oil cooler, etc.

6. Other parts: repair kit, slewing circle, engine hood, swivel joint, fuel tank, filter, boom, bucket rod, bucket, etc.

FAQ

1. What products do you supply?

We offer a full range of excavator parts, including engine assemblies, turbochargers, hydraulic pumps, injectors, electric parts, and other construction machinery components.

2. How can I confirm the part fits my machine?

Provide us with the part number, excavator model, engine model, or photos of the old part, and our technical team will confirm compatibility for you.

3. Are your products original or replacement parts?

We supply new, high-quality replacement parts that meet or exceed OEM standards. Original parts may be available for some models on request.

4. What payment methods do you accept?

We support T/T, PayPal, Western Union, and Trade Assurance. Other payment methods can be discussed if needed.

5. What is your delivery time?

In-stock items:ship within 2–3 working days
Bulk or customized orders: usually 7–15 working days

6. How do you ship the goods?

We ship worldwide via DHL, FedEx, UPS, TNT, air freight, and sea freight. A tracking number will be provided after dispatch.

7. Do you offer warranty and after-sales service?

Yes. Most products include a 6–12 month warranty, and our team provides 24/7 online technical support for installation and troubleshooting.