• 6738-31-4200 6738314200 Flywheel Ass'Y KOMATSU Excavator Spare Parts For SAA6D107E PC240LC-10

• Specification

• Function

1.Power Transmission: The flywheel is installed at the rear of the engine and rotates coaxially with the crankshaft. Its main function is to transmit the power of the engine to the transmission or clutch. By rotating, the flywheel transfers the power of the crankshaft to other components, enabling the normal operation of construction machinery, such as driving the walking system or working device of an excavator.

2.Balancing Engine Operation: The flywheel has a large moment of inertia, which can balance the torque fluctuations of the engine, making the engine operation more stable. During the operation of the engine, the force on the piston in each cylinder is uneven, resulting in torque fluctuations. The flywheel can absorb and release energy through its own inertia, reducing these fluctuations and ensuring the stable rotation of the engine.

3.Assisting Engine Starting: When starting the engine, the starter motor drives the flywheel to rotate, and then the flywheel drives the crankshaft to rotate, so that the engine can complete the intake, compression, combustion, and exhaust processes and start smoothly. The flywheel stores rotational energy to maintain a consistent engine speed and reduce power fluctuations during the starting process.

• Compatible models

ENGINES SAA6D102E SAA6D107E
EXCAVATORS PC220 PC240 PC290 PW180 PW200 PW220 Komatsu

• More other flywheel 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 .