ranroswang@hksparkling.com 
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400402-00106 Hydraulic Pilot Filter for Doosan Develon DX140LC-3 & DX160W-3
This 400402-00106 filter is used to purify the air entering the operator's cab, removing dust, debris, and pollutants to ensure a clean working environment and protect the HVAC system components.
Equipment Compatibility: It is widely used across Doosan/Develon excavators, wheel loaders, dozers, and skid steers. Common models include:
· Excavators: DX140LC-3, DX160W-3, DX180LC, etc.
· Wheel Loaders: DL320-7M, DL320A-7M.
· Dozers: DD100, DD130.
Thank you for choosing SPARKLING MACHINERY, your trusted supplier of genuine and aftermarket Doosan Develon filters. The 400402-00106 pilot filter is a vital maintenance component for your DX140LC-3 or DX160W-3 excavator. Its precision filtration ensures only clean oil reaches the pilot circuit, preventing sticky controls, valve damage, and costly breakdowns. Ideal for scheduled maintenance or emergency replacement, it restores system responsiveness and protects your machine’s hydraulic investment in harsh job site conditions.
The SPARKLING MACHINERY NEW 400402-00106 pilot filter Photo:
Why Choose the SPARKLING 400402-00106 pilot filter?
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- High Filtration Efficiency: Captures fine particulates to prevent valve sticking and clogging.
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- Durable Construction: Built with heavy-duty media and reinforced end-caps to withstand hydraulic pressure spikes.
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- OEM Compatibility: 100% match for Doosan DX-3 series mounting and flow requirements.
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- Improved Control: Maintains the sensitivity and responsiveness of the excavator's joystick controls.
Machine Compatibility & Accessory Numbers (DX-3 Series)
To assist with a full service for the DX140LC-3 or the larger DX225LC-3, refer to the following common filter part numbers:
| Filter Type | DX140LC-3 / DX160W-3 | DX225LC-3 |
| Hydraulic Pilot Filter | 400402-00106 | 400402-00106 |
| Engine Oil Filter | 65.05510-5020B | 65.05510-5022B |
| Main Fuel Filter | 400508-00002 | 400508-00003 |
| Fuel Water Separator | 400508-00001 | 400508-00001 |
| Hydraulic Return Filter | 400408-00001 | 400408-00001 |
Q&A Section
Q1: What happens if I don't change the pilot filter 400402-00106?
A: A clogged pilot filter can cause slow hydraulic response, inconsistent joystick control, or even a complete lockout of hydraulic functions due to pressure loss.
Q2: Is this filter the same as the main hydraulic return filter?
A: No. This is a smaller, high-precision filter specifically for the pilot control circuit. The main return filter is much larger and handles the bulk oil flow.
Q3: How often should the pilot filter be replaced?
A: For Doosan DX-3 models, it is generally recommended to replace the pilot filter every 1,000 operating hours or during every major hydraulic system service.
About SPARKLING MACHINERY:
- Founded in 2013, SPARKLING focuses on high-quality excavator parts across hydraulics, undercarriage, engines and electrical systems. We prioritize stability, precision and continuous service, offering worldwide distribution, tailored solutions and strict QC to help customers reduce cost and increase uptime.
Get In Touch:
- Replace your failing ECU confidently. Contact SPARKLING for pricing, lead time, and technical support — restore optimal machine control quickly and reliably.
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📦 Packing
1. Packaging methods: Carton box + Wooden case/Pallet + Anti-rust treatment
2. Export-standard packaging to ensure safety during transportation
3. Custom packaging available upon request
4. Dimensions and weight can be provided for freight calculation
🚚 Shipping
1. Available shipping methods: Sea freight, Air freight, Express delivery (DHL, UPS, FedEx, etc.)
2. LCL (Less than Container Load) and FCL (Full Container Load) options are supported
3. For Russian clients, we can introduce the forwarder agent to you
4. Delivery time: Ships within 1-3 working days after payment (for items in stock)
💳 Payment
1. Accepted methods: T/T, Bank Transfer, PayPal, Alipay, WeChat Pay, Western Union
2. Deposit + balance payment available for large or custom orders
3. Flexible payment options—feel free to contact us for details
📌 Frequently Asked Questions (FAQs)
Q: Which excavator models is this part compatible with?
A: This product is compatible with major brands such as CAT, KOMATSU, HITACHI, and more. Custom specifications are also available.
Q: How can I make sure I’m selecting the correct part?
A: You can send us a photo of the old part, part number, or your excavator model, and we will help you confirm the right match.
Q: Is there a warranty for this product?
A: Yes, we offer a 6-month quality guarantee under normal use.
Get a free quote
We are committed to producing the highest quality products at the most competitive prices. Therefore, we sincerely invite all interested companies to contact us for more information.
Contact us
Email: ranroswang@hksparkling.com
Wechat: +86 136 0901 0879
Skype: foreverlucia1
WhatsApp: +86 136 0901 0879
Address: No. 514-515, Hulin Road, Tianhe District, Guangzhou, China.
Sparkling Machinery Co.,Ltd
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Whatsapp: +8613609010879