21W-03-41780 21W0341780 Tank Assy Excavator Spare Parts For KOMATSU PC78MR PC78US PC78UU

• 21W-03-41780 21W0341780 Tank Assy Excavator Spare Parts For KOMATSU PC78MR PC78US PC78UU

• Specification

• Function 

1. Fluid Storage and Supply
Reservoir Capacity: Holds a specific volume of hydraulic oil (e.g., 139 liters in the D155AX-6), providing a buffer to meet peak demands from pumps and actuators without running dry.
Continuous Flow: Maintains a steady oil level to prevent cavitation in the pumps, ensuring smooth operation of components like booms, buckets, and tracks.

2. Filtration and Contamination Control
Built-in Filtration: Equipped with an inlet or return line filter to remove dirt, metal particles, and other contaminants, protecting the system from wear and damage.
Sealed Design: Features seals and breathers to prevent external dust and moisture from entering the oil, maintaining its cleanliness and integrity.

• Compatible models

EXCAVATORS PC78MR PC78US PC78UU PC88MR

• More tank parts fit for KOMATSU machinery

• Catalog parts list

• We could supply the following spare parts

1 Hydraulic parts: hydraulic pump, main valve, hydraulic cylinder, final drive, travel motor, swing machinery, swing motor etc.

2 Engine parts: engine ass’y, piston, piston ring, cylinder block, cylinder head, crankshaft, turbocharger, fuel injection pump, starting motor and alternator etc.

3 Undercarriage part: Track roller, Carrier roller, Track Link, Track shoe, Sprocket, Idler and Idler cushion etc.

4 Cab parts: operator’s cab, wiring harness, monitor, controller, seat, door etc.

5 Cooling parts: Radiator, air conditioner, compressor, after cooler etc.

6 Other parts: Service kit, swing circle, engine hood, swing joint, fuel tank, filter, boom, arm, bucket etc.

• Advantage

1. Offer Top quality & competitive products

2. Support 12-month warranty

3. 100% tested before shipping

4. Delivery in time

5. A wide range of Oil Pressure Sensor, Fuel Tank Level Sensor, Temperature Sensor, Speed Sensor for excavator 

6. More than 15 years production and 11 years foreign trade experience

7. Professional QC team

8. Best sales team, 24 hours service

• Packing and Shipping

Packing Details :

inner packing : plastic film for wrapping

external packing : wooden

Shipping :

within 3 days after received the payment , by air or by express or by sea on the basis of the

quantity and emergency circumstances.

1. By Couriers: DHL, UPS, FEDEX, TNT are the main courier companies we are cooperated,

2. By Air: Delivery from the Guangzhou air port to customer's destination city air port.

3. By Sea: Delivery from the Huangpu port .

• Product Warranty

1. Warranty Period: 3 Months' warranty from the date of arrival. Longer period of 6 months' warranty could be offered with higher price level.

2. Warranty type: replacement of the parts that have quality problem.

3. Warranty is not valid for below s

* Cutomer give wrong information about the order

* Force Majeure

* Wrong installation and operation

* Rust because of wrong stock & maintenance