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Custom Air Filter 400401-00004 40040100004

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Notice of Holiday Arrangement (January 1–3, 2026)

Notice of Holiday Arrangement (January 1–3, 2026)

Dear Valued Customers, Partners, and Colleagues, Warm greetings from CHINA EVERLASTING PARTS CO., LIMITED. Thank you for your long-term trust, cooperation, and continuous support. As the new year approaches, we would like to inform you of our official holiday arrangement for early 2026. Please be kindly noted that our company will observe a three-day holiday from January 1 to January 3, 2026. During this period, our office and factory operations will be temporarily closed. Routine processes such as order handling, production scheduling, and shipment arrangements may experience slight delays. We kindly recommend that you make necessary plans in advance to ensure smooth business operations. Please rest assured that our sales team will remain available online during the holiday and can be reached via email or WhatsApp for inquiries, quotations, and urgent communication.While responses may not be as immediate as on regular working days, we will do our best to support you in a timely and professional manner. All normal business operations will fully resume on January 4, 2026. Any pending matters during the holiday period will be handled promptly upon our return. This holiday allows our team to recharge and return with renewed energy, enabling us to continue delivering high-quality filtration solutions, including air filters, oil filters, fuel filters, hydraulic filters, as well as OEM and ODM customized services for global customers. On this occasion, we would like to extend our sincere best wishes to you and your team. May 2026 bring you good health, smooth cooperation, and continued business success. We look forward to strengthening our partnership and achieving greater growth together. Thank you for your understanding and support. Kind regards, CHINA EVERLASTING PARTS CO., LIMITED Professional High Quality Filters Manufacturer Contact: Email: Sales@filters-king.com WhatsApp/WeChat: +86 18965520297 | +86 18144082725

Custom Air Filter 400401-00004 40040100004

Part Number:400401-00004
Part Type:Air Filter
Brand:Doosan Replacement
MOQ:20pcs
Air Filter 400401-00004 Equivalent to 612600114993A For Doosan Loader Excavator.
  • Details

Company Overview

CHINA EVERLASTING PARTS CO., LIMITED is a professional high-quality filters manufacturer serving global B2B customers. Our main products include Air Filter, Air Cleaner Filter, Air Dryer, Ventilation Filter, Breather Filter, Oil Filter, Fuel Filter, Hydraulic Filter, Fuel Water Separator, Air Oil Separator, and Filter Assemblies. With strong engineering capability and stable production capacity, we support OEM and ODM customization for distributors, wholesalers, and aftermarket service providers worldwide.


Custom Air Filter 400401-00004 for Doosan Equipment


Key Features

The Custom Air Filter 400401-00004 is designed as a reliable Doosan air filter cross reference solution for heavy-duty construction equipment. Manufactured with high-performance filter media and reinforced structure, this OEM engine air filter ensures stable airflow and effective dust retention in harsh working environments.

  • Exact replacement for Doosan part number 400401-00004
  • Compatible with Doosan Dx300 excavators
  • Supports cross reference with Weichai 612600114993A
  • Factory-controlled quality with consistent filtration efficiency
  • Available for bulk orders with low MOQ


Product Advantages

Compared with standard aftermarket options, this Doosan excavator air filter provides improved structural stability and longer service life. Advanced sealing design minimizes air bypass, while optimized filter paper ensures balanced airflow and dust-holding capacity. As a professional manufacturer, we offer cost-effective pricing without compromising quality.


Benefits for B2B Buyers

For distributors, wholesalers, and filter stores, choosing this loader air filter replacement helps reduce customer complaints, extend maintenance intervals, and increase repeat orders. Stable quality and OEM-level compatibility make it an ideal choice for aftermarket service providers who require dependable filtration solutions.


Proven Performance & Reliability

Each custom air filter is produced under strict quality inspection standards and tested for airflow resistance and filtration efficiency. Our long-term cooperation with global customers proves its suitability for demanding construction and industrial applications.


Technical Specifications

Parameter Details
Part Number 400401-00004
Part Type Air Filter
Brand Doosan Replacement
Compatibility Doosan Dx300
Cross Reference Weichai 612600114993A
MOQ 20 pcs


Customer Testimonials

★★★★★

Filter Distributor, USA
“The quality of this custom air filter fully meets OEM standards. Perfect Doosan air filter cross reference with stable supply.”

★★★★★

Aftermarket Service Provider, Europe
“Excellent fit for Doosan Dx300. Our customers are very satisfied with the filtration performance.”

★★★★★

Wholesale Buyer, Middle East
“Reliable OEM engine air filter supplier. Competitive price and consistent quality for bulk orders.”


Contact & OEM Support

For pricing, bulk orders, or OEM/ODM customization of custom air filters, please contact us:

WhatsApp / WeChat: +86 18965520297
WhatsApp / WeChat: +86 18144082725

Email: Sales@filters-king.com



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