S6K 24V Second Hand Starter Motor M003T56174 M003T56172 For Excavator E320C E320D
S6K 24V Second Hand Starter Motor M003T56174 M003T56172 For Excavator E320C E320D
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Basic Infomation
Place of Origin: Japan
Brand Name: Caterpillar
Model Number: S6K
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M003T56174 Second Hand Starter Motor


M003T56172 Second Hand Starter Motor


Second Hand Starter Motor 24V

Payment & Shipping Terms
Packaging Details: Neutral Package or Fumigation Free
Delivery Time: 5 - 8 work days
Payment Terms: D/P, T/T
Supply Ability: 5 pieces
Product Name: Engine Starter Motor
Excavator Model: E320C E320D
Engine Model: S6K
Part Number: M003T56172 M003T56174
Condition: Used
Quality: High Quality
Color: Black
Material: Metal
Product Description



S6K Second Hand Starter Motor For Excavator E320C E320D M003T56172 M003T56174






Part Name: Second hand starter Motor Engine type: Diesel
Voltage: 24V Cylinders Number: 6
Application: Excavator engine Test staus: Normal
Type: Electric Injection Industrial Engine: S6k






The starter motor has only one function which is the first and second rotations the engine needed. Apart from that, the device is just an extra load to the vehicle. There should be another means of starting vehicles without starter motors right! I think the component is too big for one function.


Parts of Starter Motor

Below are starter motors parts and their functions:



An armature is an electromagnet component that is mounted on the driveshaft or bearings for a guide. It is made of a laminated soft iron core which is wrapped with numerous conductor loops or windings.



A commutator is a section of the shaft at the rear of the housing on which brushes run to conduct electricity. It is made of two plates mounted to the axle of the armature, the plates provide connections for the coil of the electromagnet.



Brushes are parts that run on a section of the commutator at the rear of the housing. it rubs the commutator and conducts electricity.



The solenoid features two coils of wire that are wrapped around the core. This solenoid serves as a switch that connects and close the electrical connection between the starter motor and the vehicle’s battery.



The function of a plunger in a starter motor is to push forward so the pinion can be engaged.


Lever Fork:

The lever fork is connected to the plunger which makes them push forward together to engage the pinion.



A pinion is a small mechanism containing gear and springs. It engages immediately the engine started, by extending the gear to the flywheel teeth. The flywheel is the source of engine rotation.


Field Coils:

The field coils are held in housing with screws as it consists of two or more coils connected in series. These coils receive power from the battery that converts them into an electromagnet that turns the armature. This creates a magnetic field around the armature.



S6K 24V Second Hand Starter Motor M003T56174 M003T56172 For Excavator E320C E320D 0S6K 24V Second Hand Starter Motor M003T56174 M003T56172 For Excavator E320C E320D 1

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