• 203-03-61640 2030361640 Water Tank KOMATSU Excavator Spare Parts Fit For PC138US-8

• Specification

• Application and Function

1.Primary Use:
This water tank is a critical component of the engine cooling system, storing coolant (a mixture of water and antifreeze) to regulate engine temperature during operation. It ensures consistent heat dissipation, preventing overheating in high-load environments (e.g., mining, construction sites).
Compatible with Komatsu machines featuring water-cooled engines (e.g., SAA6D107E-1 in the WA380-6 loader, which has a coolant capacity of 30.5 liters).

2.System Integration:
Connected to the radiator, water pump, and engine via hoses and fittings, the tank maintains coolant circulation. Its design includes a pressure cap to regulate system pressure (typically 1.1–1.3 bar) and a reserve chamber to accommodate coolant expansion.

• Compatible models

• More other tank parts fit for KOMATSU machine

• 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 .