20R-01-11210 20R0111210 Rubber Excavator Spare Parts For KOMATSU PC03 PC05 PC07 PC08UU

• 20R-01-11210 20R0111210 Rubber Excavator Spare Parts For KOMATSU PC03 PC05 PC07 PC08UU

• Specification

• Function 

1. Enables Critical Torque & Power Transmission
As a core part of the pump coupling, this rubber element acts as a "mechanical bridge" between the excavator’s engine flywheel and the hydraulic pump shaft. When the engine operates, it generates rotational torque—this rubber component efficiently transfers that torque to the hydraulic pump without significant power loss. The hydraulic pump relies on this transmitted power to pressurize hydraulic fluid, which is the lifeblood of the excavator’s key functions: digging, lifting, bucket movement, and machine travel. Without this rubber element’s ability to transfer power smoothly, the hydraulic system would fail to receive the energy it needs, rendering the excavator inoperable for core tasks.

2. Absorbs Vibrations & Dampens Shocks
The inherent elasticity of the rubber material makes this element a vital "vibration buffer" for the excavator. During operation, both the engine and hydraulic pump produce continuous vibrations—if left unmanaged, these vibrations would transfer directly to the coupling, shafts, and even the excavator’s main frame, causing excessive noise and accelerated wear. The rubber element absorbs these vibrations, reducing their transmission between the engine and pump, and minimizing overall operational noise. Additionally, it cushions sudden shocks (e.g., when the bucket strikes hard rock or uneven terrain during digging).

• Compatible models

• More rubber parts supplied to 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 .

• 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