Cummins 4394578 A055B956 5579360 A064B994 DPF Filter Replacement

Restore exhaust filtration performance with the Skyline aftermarket Cummins 4394578 DPF Filter. This direct-fit replacement for Cummins 4394578, 4394578NX, 4394578RX, A055B956, 5579360, 5579360NX, 5579360RX, and A064B994 is built to meet or exceed OEM specifications for Cummins B6.7 / ISB 6.7L, Cummins L9 / ISL 9L, and PACCAR PX-9 engines. Manufactured in the USA with an Exact-Fit™ design, this Diesel Particulate Filter (DPF) provides reliable installation on Freightliner, Kenworth, Peterbilt, International, and Western Star trucks. This brand-new DPF has no core charge, includes a 3-year unlimited mileage warranty, is EPA compliant, and ships free within the continental United States.

Choose the Setup That Fits Your Shop’s Needs

• Full Kit (Best Value): Includes (1) DPF, (2) 2871772 OEM-quality gaskets, and (2) 5417471 clamps.
• DPF Only: Includes the DPF filter only. No gaskets or clamps included.

Engine Compatibility

• Approximate Model Years: 2017 to 2025
• Cummins B6.7 / ISB 6.7L: Found in school buses, medium-duty delivery trucks, and shuttle buses
• Cummins L9 / ISL 9L: Used in vocational trucks, refuse trucks, dump trucks, and transit buses
• PACCAR PX-9: The PACCAR-branded version of the Cummins L9 platform

Common Vehicle Make and Model Fitment

• Kenworth: T280, T380, T480, and vocational models like the T880 when equipped with L9
• Freightliner: Business Class M2 106, M2 112, and Cascadia models equipped with the L9
• Peterbilt: 536, 537, 548, and 567 models
• International: MV Series and HV Series
• Vocational / Buses: Refuse trucks, transit buses, and dump trucks

Cross-References for Cummins 4394578

Key Features

• Built in the USA: Designed, engineered, and manufactured in America.
• EPA Compliant: Meets federal emissions standards for applicable particulate matter reduction requirements.
• No Core Charge: Brand-new unit with no core return required.
• Fast Free Shipping: Free ground shipping within the continental United States.
• Warranty: Backed by a 3-year unlimited mileage warranty.
• Direct Fit Design: Installs like OEM with no modifications required.

OEM Assembly Numbers: 4394377, 5508142, 5508143, 5508144, 5508145, 5508147, 5508149, 5508150, 5508151, 5508153, 5508154, 5508296, 5508300, 5508303, 5508304, 5508305, 5508306, 5508307, 5508389, 5508390, 5508397, 5508398, 5508399, 5508402, 5508403, 5508451, 5508452, 5508453, 5508456, 5508458, 5508459, 5508460, 5508461, 5508462, 5508473, 5508485, 5508486, 5508488, 5508504, 5508507, 5508555, 5508557, 5508558, 5508560, 5508564, 5508565, 5508566, 5508613, 5508614, 5508615, 5508664, 5508666, 5508667, 5508691, 5508692, 5508693, 5508694, 5508695, 5508696, 5508697, 5508698, 5508700, 5508705, 5508706, 5508707, 5508708, 5508797, 5508798, 5508799, 5508800, 5508801, 5508802, 5508803, 5508804, 5508805, 5508807, 5508809, 5508810, A054U225, A062N995, A062P012, A062P013, A062R426, A062R434, A062R435, A062R436, A062R439, A062R440, A062R445, A062R450, A062R464, A062R465, A062R466, A062R467, A062R471, A062R472, A062R479, A062R483, A062R484, A062R485, A062R486, A062R488, A062R494, A062R502, A062R503, A062R505, A062R507, A062R508, A062R509, A062R510, A062R511, A062R512, A062R518, A062R519, A062R521, A062R523, A062R525, A062R526, A062R527, A062R528, A062R532, A062R534, A062R537, A062R543, A062R547, A062R549, A062R551, A062R552, A062R554, A062R555, A062R557, A062R560, A062R561, A062R563, A062R564, A062R568, A062R572, A062R573, A062R575, A062R576, A062R577, A062R584, A062R586, A062R589, A062R591, A062R592, A062R598, A062R601, A062R603, A062R604, A062R606, A062R607, A062R610, A062R612, A062R613, A062R614

Product images are for reference only. Final components (filter, gaskets, clamps, sensor port locations) depend on the selected configuration. Price is for (1) DPF only.

California Shipping Notice: This product is EPA compliant but is NOT for sale in California and cannot be shipped to a California address.