Doosan Excavator DH500 7 Starter MotorDo you own a Doosan Excavator DH500-7 or are you responsible for maintaining one?

If so, you know that this heavy-duty machine is a true workhorse, but even the most robust machines require regular maintenance and the occasional replacement of essential parts.

One such component that plays a crucial role in starting your excavator is the starter motor.

Ensuring that you have a reliable and efficient starter motor can make all the difference in your machine's performance and your project's success.

In this detailed and comprehensive guide, we'll walk you through everything you need to know about purchasing the right starter motor for your Doosan.

So, grab a cup of coffee, sit back, and let's dive into the world of starter motors.

Trust us; you'll be glad you did!

How Much Does It Cost?

The price of a starter motor for an excavator can vary widely due to several factors, which can influence the overall cost of this essential component. Generally, prices can range from as low as $100 for some aftermarket options to over $500 for premium OEM (Original Equipment Manufacturer) models. To provide a more comprehensive understanding of these factors, let's break them down further:

  • Excavator make and model: The specific make and model of your excavator will play a significant role in determining the price of a compatible starter motor. Certain brands or models may have more expensive components due to their design, materials, or performance specifications.

  • OEM vs. aftermarket: OEM starter motors are produced by the original equipment manufacturer and are guaranteed to be compatible and of high quality. However, they usually come with a higher price tag. Aftermarket starter motors can be more affordable, but their quality and compatibility can vary significantly. Sometimes, aftermarket options can offer improved performance or features that may justify their cost.

  • Supplier: The supplier you choose can have a considerable impact on the price of the starter motor. Some suppliers may offer more competitive pricing, bulk discounts, or special promotions, while others may charge a premium for their products or services. Be sure to research and compare prices from different suppliers before making a decision.

  • Warranty: A longer or more comprehensive warranty can add value to the purchase, which may be reflected in the price of the starter motor. A good warranty can save you money in the long run by covering potential defects or issues that may arise after installation.

  • Additional features or enhancements: Some starter motors may come with additional features or enhancements, such as increased durability, advanced materials, or improved performance. These added benefits can increase the overall cost of the starter motor but may be worth the investment if they align with your needs and requirements.

When searching for the right starter motor for your excavator, it is essential to consider these factors and weigh them against your budget and priorities. While it may be tempting to opt for the lowest-priced option, remember that the cheapest choice may not always be the best one. Instead, focus on finding a balance between cost, quality, compatibility, and customer support to ensure that you get the best value for your money.



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Understanding the Doosan Excavator DH500-7 Starter Motor

Function of the starter motor

The starter motor plays a vital role in your Doosan Excavator DH500-7, as it is responsible for turning the engine over when you start the machine. It does this by converting electrical energy from the battery into mechanical energy, which rotates the engine's crankshaft. The rotation of the crankshaft allows the engine's pistons to move, creating the compression needed for the combustion process to begin. In essence, without a functioning starter motor, your excavator will not start.

Key components and features

The primary components of a starter motor for your Doosan Excavator DH500-7 include the motor itself, a solenoid, a pinion gear, and a flywheel. The solenoid serves as an electrical switch that engages the starter motor when you turn the ignition key. Once engaged, the motor spins the pinion gear, which meshes with the flywheel on the engine's crankshaft. This meshing of gears allows the starter motor to turn the engine over, initiating the ignition process.

Common signs of starter motor failure

It's essential to recognize the signs of starter motor failure to address the issue before it leads to more significant problems or leaves you stranded with a non-operational excavator. Some common symptoms include:

  • Grinding or whirring noises when attempting to start the engine
  • The engine turning over slowly or not at all
  • Frequent or intermittent failure to start
  • The starter motor remaining engaged even after the engine starts

Choosing the Right Starter Motor

OEM vs. aftermarket starter motors

When selecting a starter motor for your Doosan Excavator DH500-7, you have two primary options: OEM (Original Equipment Manufacturer) or aftermarket. Let's explore the pros and cons of each:

Pros and cons of OEM starter motors

- Pros: Guaranteed compatibility, assured quality, and backed by manufacturer warranties.
- Cons: Usually more expensive and may have limited availability.

Pros and cons of aftermarket starter motors

- Pros: Typically more affordable, a wide range of options, and may offer improved performance or features.
- Cons: Varying quality and compatibility, potentially shorter warranty periods, and may require modification for installation.

B. Considerations for selecting the right starter motor

When choosing the best starter motor for your Doosan Excavator DH500-7, consider the following factors:

  • Compatibility: Ensure that the starter motor you choose is compatible with your excavator model and engine type. Cross-reference the part numbers and consult your owner's manual if necessary.

  • Quality and performance: Research the reputation of the manufacturer and the performance and durability of the starter motor. Look for reliable brands that have a proven track record of producing high-quality components.

  • Warranty and support: Check for warranty coverage and the availability of customer support. A good warranty and responsive customer service can save you time, money, and headaches in the long run.

Finding a Reputable Supplier

A. Researching suppliers

To ensure you purchase a reliable and compatible starter motor for your Doosan Excavator DH500-7, take the time to research potential suppliers. Some methods of evaluating suppliers include:

  • Online reviews and testimonials: Check customer reviews on websites, forums, and social media platforms. This can provide insight into the quality of the supplier's products and services.

  • Industry certifications and affiliations: Look for suppliers with industry certifications or affiliations, as these can demonstrate a commitment to quality and professional standards.

  • Word-of-mouth recommendations: Ask for recommendations from colleagues, friends, or online communities familiar with your industry.

B. Comparing prices and services

Once you have identified potential suppliers, compare their prices and services to make an informed decision. Keep in mind that the cheapest option may not always be the best choice, and consider factors such as shipping costs, product quality, and customer support when making your decision.

C. Assessing customer support and after-sales service

A supplier's customer support and after-sales service are essential factors to consider when making your purchase. A company that offers prompt and efficient customer support will be more likely to address any issues that may arise during the purchasing process or after installation.

Purchasing the Starter Motor

Placing the order

Online vs. in-person purchases: You can choose to purchase your starter motor online or in person, depending on your preference and the availability of suppliers in your area. Online purchases offer convenience and the ability to compare prices easily, while in-person purchases can provide the opportunity to inspect the product and ask questions directly.

Necessary information to provide to the supplier: When placing your order, be prepared to provide the supplier with specific information about your Doosan Excavator DH500-7, such as the model, engine type, and any relevant part numbers. This will ensure you receive the correct starter motor for your machine.

Shipping and delivery options

Discuss shipping and delivery options with your supplier, including estimated delivery times and any associated costs. Make sure you have a clear understanding of these details to avoid any unexpected surprises or delays.

Payment methods and security

Choose a payment method that is secure and convenient for you. Many suppliers offer various options, such as credit cards, PayPal, or bank transfers. Ensure that the supplier's payment system is secure to protect your financial information.

Installation and Maintenance

DIY installation vs. professional service

Pros and cons of DIY installation

- Pros: Can save money and provide a sense of accomplishment.
- Cons: Requires mechanical knowledge and skill, and mistakes can lead to costly repairs or damage.

Pros and cons of professional service

- Pros: Ensures proper installation by trained professionals and may include a service warranty.
- Cons: Can be more expensive and may require scheduling an appointment.

Proper maintenance tips for starter motor longevity

To ensure the long-term performance and reliability of your newly purchased starter motor, follow these maintenance tips:

  • Regularly inspect the starter motor for signs of wear or damage.
  • Keep the battery in good condition to provide sufficient power to the starter motor.
  • Check the electrical connections for corrosion or damage and clean or replace as needed.
  • Lubricate the moving parts of the starter motor as recommended by the manufacturer.

Troubleshooting common issues

If you experience any issues with your starter motor, take the time to troubleshoot the problem before resorting to a replacement. Some common issues and their potential solutions include:

Starter motor not engaging: Check the solenoid for damage, ensure the battery is fully charged, and inspect the wiring for loose connections or corrosion.

Grinding or whirring noises: Inspect the pinion gear and flywheel for wear or damage and replace if necessary.
Slow or inconsistent engine turnover: Test the battery and charging system, and ensure all electrical connections are clean and secure.
Starter motor remaining engaged: Inspect the solenoid and its wiring for damage, as well as the ignition switch for proper function.


The starter motor is a critical component of your Doosan Excavator DH500-7, and ensuring its proper function is essential to the machine's overall performance. By taking the time to research and select the right starter motor, find a reputable supplier, and follow proper installation and maintenance practices, you can extend the life of your excavator and improve its reliability.

Remember that investing in a quality starter motor will not only save you time and money in the long run but will also contribute to the overall success of your projects. So, take the steps outlined in this comprehensive guide and secure the best starter motor for your Doosan Excavator DH500-7. Your excavator, your team, and your bottom line will thank you for it.

Now that you're armed with this knowledge, you're ready to embark on your journey to find the perfect starter motor for your Doosan Excavator DH500-7. Good luck, and happy excavating!

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