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    Secondary Air Filter

    Product number: AM 401W
    ART: AM 401W / EAN: 5904608014016

    FILTRON
    Advised products
    Price incl. vat.
    € 35,85

    Add to cart
    Leverdatum: 23-04-2026

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    Manufacturer Model Version Engine code Construction type Construction start Construction end Pk Power kw
    RENAULT TRUCKS RENAULT TRUCKS
    Manufacturer Productnumber
    FIAT 70197588
    VOLVO 4785921
    VOLVO 4789521
    NISSAN 16546-97005 , 1654697005
    MAN 81.08304-0058 , 81083040058
    RENAULT TRUCKS 50 10 066 387 , 5010066387
    HITACHI 76590430
    GENERAL MOTORS 9029490
    GENERAL MOTORS 9034223
    GENERAL MOTORS 9036278
    GENERAL MOTORS 9049490
    LINDE 19831601
    HINO 17801-2540 B , 178012540B
    SCANIA 310 817 , 310817
    JOHN DEERE AT253844
    YANMAR 40000-05500 , 4000005500
    YANMAR 400000-05490 , 40000005490
    LIEBHERR 5508917
    LIEBHERR 736 4116 , 7364116
    CASE IH 3 039 972 R 1 , 3039972R1
    CASE IH 441 094 C 1 , 441094C1
    CASE IH P-850529 , P850529
    MASSEY FERGUSON 1096417M91
    MASSEY FERGUSON 3072251M1
    POCLAIN 8505-29 , 850529
    POCLAIN M08505-29 , M0850529
    POCLAIN N 08505-29 , N0850529
    ALLIS-CHALMERS 0197588-7 , 01975887
    ALLIS-CHALMERS 197588
    ALLIS-CHALMERS 1975888
    CATERPILLAR 3I-0125 , 3I0125
    CATERPILLAR 3I-1497 , 3I1497
    CATERPILLAR 9Y-6803 , 9Y6803
    FIAT-HITACHI 76590430
    INGERSOLL-RAND 3510 9262 , 35109262
    INGERSOLL-RAND 3510 9271 , 35109271
    INGERSOLL-RAND 35109200
    INGERSOLL-RAND 9163 4337 , 91634337
    KOMATSU 3127819031
    KOMATSU 600-181-1560 , 6001811560
    KOMATSU 600-181-5480 , 6001815480
    KOMATSU 612-781-7411 , 6127817411
    KOMATSU 612-781-7412 , 6127817412
    KOMATSU 612-881-7040 , 6128817040
    KOMATSU 612-881-7042 , 6128817042
    KOMATSU 612-881-7051 , 6128817051
    KOMATSU 6120817412
    KOMATSU 6127-81-4711 , 6127814711
    KOMATSU 6127-81-4712 , 6127814712
    KOMATSU 6127-81-7032 , 6127817032
    KOMATSU 6127-81-7033 , 6127817033
    KOMATSU 6127-81-7040 , 6127817040
    KOMATSU 6127-81-7413 , 6127817413
    KOMATSU 6127-81-9031 , 6127819031
    KOMATSU 6127817022
    KOMATSU 6127817421
    KOMATSU 6128-81-7043 , 6128817043
    KOMATSU 6128-81-7090 , 6128817090
    KOMATSU 6128-81-7091 , 6128817091
    KOMATSU 6128817041
    KOMATSU 6128817221
    KOMATSU 6128817412
    KOMATSU E6127817412
    MICHIGAN 0949 363 , 0949363
    MICHIGAN 1514 669 , 1514669
    MICHIGAN 1532 445 , 1532445
    CUMMINS 204636
    CUMMINS 204646
    CUMMINS 3013207
    AGCO 71358961
    AGCO 7721525
    TEREX 9034 223 , 9034223
    TEREX 9036 278 , 9036278
    TEREX 9229 213 , 9229213
    GROVE 9437990005
    ATLAS WEYHAUSEN 277 004 , 277004
    VME SH- 12252 , SH12252
    YALE 6953031
    KOBELCO 2446U212S2
    EUCLID 9034 223 , 9034223
    EUCLID 9036 278 , 9036278
    EUCLID 9049 490 , 9049490
    EUCLID 9229 213 , 9229213
    Usage numbers
    AM 401W
    5
    90461E+12

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    Secondary Air Filter

    The Secondary Air Filter (AM 401W) provides additional filtration to protect the engine in high dust environments. Replacing the secondary filter ensures optimal airflow and long engine life. Use Porza’s smart search to find the correct filter.

    FAQ

    A secondary air filter is an additional filtration component installed alongside the primary air filter in the intake system. Its function is to provide an extra layer of protection by capturing finer particles that may pass through the main filter. This helps ensure cleaner air reaches the engine, improving durability and maintaining optimal performance, especially in demanding or dusty environments.


    Key specifications include filtration efficiency (often higher than the primary filter), airflow capacity, dimensions, and filter material (typically fine paper or synthetic media). The filter must balance fine particle capture with sufficient airflow, and it should withstand operating temperatures typically ranging from 80–120°C in engine environments. Proper fitment within the air filter housing is essential for effective sealing.


    Replacement is necessary when the filter becomes clogged or reaches its service interval. Since it captures finer particles, it may clog faster than the primary filter in harsh conditions. Regular inspection is important, especially in off-road or heavy-duty applications where air contamination is higher.


    Porza offers a fit guarantee option where your vehicle details, such as license plate or VIN, are checked against product specifications. This ensures the secondary air filter matches the correct size and configuration for your intake system, reducing the risk of incorrect fitment.


    Porza supplies high-quality filtration components with fast delivery across Europe. Customers can order online or choose in-store pickup in the Netherlands, Germany, or Belgium. This allows quick and flexible access to essential parts for both professional workshops and individual users.


    If you select the fit guarantee, Porza verifies compatibility before shipment. If the product does not fit or meet expectations, it can be returned according to the return policy. This ensures a reliable and risk-free purchasing experience.


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    Venlo
    The Netherlands

    Willem de Rijkelaan 15a, 5616 HH
    Eindhoven
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    085 401 1901
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