Import Air Filter — Buy in Bulk from Supplier in China

This air filter is engineered for Caterpillar 977 loader and carry-scraper applications, with exact dimensions of 407 by 282 by 170 mm (Type A) and 390 by 200 mm with a thickness of 164 by 134 mm (Type B). The design targets heavy-duty earthmoving equipment where dust loading is severe and filter integrity directly affects engine protection and uptime. Zhejiang Kefei Filter Co., Ltd manufactures this unit in Huangyan, Taizhou, Zhejiang Province, a region with established plastics and moulding industries that support filter housing production. The supplier's imported tier and harbor trust classification indicate a baseline marketplace presence without response data on record.

The filter media is typically a cellulose-polyester blend or full synthetic fibre with resin impregnation, standard for construction equipment pleated primary elements rated to capture gravimetric dust loads common in mining and quarrying. Pleat count, spacing, and adhesive bead placement determine dust-holding capacity and airflow resistance, though these precise values are not stated in the source. Seal configuration is critical for this application, given the high vibration and shock loads in loader operation, so a radial or axial rubber seal of nitrile or polyurethane is typical for this equipment class. The frame is usually metal or reinforced plastic, designed to withstand pulse-cleaning pressures where applicable.

Buyers in construction, mining, and agriculture sectors use this filter to protect diesel engines in abrasive environments where intake dust causes accelerated cylinder and turbocharger wear. The correct fit and seal are paramount, as bypass leakage negates filtration efficiency regardless of media grade. Sourcing terms such as MOQ, lead time, and Incoterms are not specified in the listing and must be confirmed directly with Zhejiang Kefei Filter Co., Ltd. Buyers should request test data for gravimetric dust arrestance, initial pressure drop, and compatibility with the Caterpillar 977 air cleaner housing before committing.

Zhejiang Kefei Filter Co., Ltd is located at No2, Rouji Road, Huangyan, Taizhou, Zhejiang Province, China, postal code 318020. The company sits within a manufacturing corridor known for plastic moulding and automotive component supply, which provides relevant industrial context for filter housing and frame production capabilities. The supplier tier is marked as imported, and the trust tier is harbor, with a response rate of 0.00 percent and an average response time of zero hours recorded. These signals indicate limited active engagement data on the platform, so buyers should treat direct communication as essential rather than optional.

The listing does not state factory size, workforce, production capacity, year of establishment, revenue, or specific client references, and none of these should be assumed. What is known is that the company produces air filters for heavy machinery, specifically Caterpillar equipment, suggesting familiarity with OEM replacement markets. Buyers should verify whether Zhejiang Kefei holds any ISO 9001, ISO/TS 16949, or ISO 5011 test documentation, as these are claimed in the source description but must be validated directly. The absence of response metrics means sample requests and technical questionnaires should be sent early in the sourcing process to assess capability and communication quality.