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Item No.: ZA130

Production Description:

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Specification 18 V 4 kW Shaft length 337.00
Core thickness 75.00 No./splines 10
Rotation CR


We Promise:

100% NEW and Made with the Highest Quality Components Available
Full One Year Warranty
Computer tested for consistent Quality and unsurpassed reliability
Meets or Exceeds Original Specifications

Transaction Term:

Payment T/T, L/C,Paypal,Western Union
Delivery Time 5-25-45 DAYS(It depends on)
Warranty one year
Certificate ISO/TS16949




Q1. What is your terms of packing?
A: Generally, we pack our goods in ZACH  boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters and the order quantity reach our requirment.

Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages 
before you pay the balance.

Q3. What is your terms of delivery?

Q4. How about your delivery time?
A: Generally, it will take 5 to 60 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.

Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery

Q8: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, 
no matter where they come from.

A starter motor works as follows:

  1. When a current is supplied to the solenoid it engages the plunger.
  2. This moves the lever fork and in turn pushes the pinion on the starter motor drive shaft.
  3. The movement also closes high current contacts (brushes) for the starter motor which then begins to turn.

Together with the rotation and engagement of the pinion to the engines flywheel the starting process is complete.

When the ignition switch is released and the current is no longer supplied to the starter motor the solenoid retracts. This moves the pinion away from the ring gear and the starter motor becomes inoperative.

Excessive cranking or vehicle faults resulting in the starter motor remaining engaged can result in excessive heat generation and the premature failure of the starter motor and/or its components.


Armature, commutator and brushes

The armature is mounted on the drive shaft and bearings for support. It is a laminated soft iron core which is wrapped with numerous conductors loops or windings. The commutator is a section of the shaft at the rear of the housing on which the brushes run to conduct electricity. Current flowing through the windings and the commutator bars crate a magnetic field which rotates the armature.

Solenoid, plunger and lever fork

The solenoid contains of two coils of wire that are wrapped around a moveable core. The solenoid acts as a switch to close the electrical connection and connects the starter motor to the vehicles battery. The process allows the solenoid to push forward the plunger connected to the lever fork which engages the pinion.


The pinion is a unique combination of a gear and springs. Once the starter is engaged the gear is extended into the gearbox housing and is engaged with the flywheel. This spins the engine to begin the combustion process.

Field Coils

The housing (yolk assembly) holds the starter fields in the housing with screws. This can consist of two to four field coils connected in series. Energised by the battery this converts the coils into an electromagnet which then turns the armature. The later type starter motors are fitted with permanent magnets in the housing. When the armature coils are powered a magnetic field is created around the armature. The left side of the armature is pushed away from the left magnet and drawn towards the right (also known as North and South magnetisation), causing rotation.