Free Ground shipping within the continental USA. Other options, including overnight, are available at checkout. We ship from several warehouses located throughout the USA. Orders placed after 2:00pm Eastern time will ship next business day
California Orders - Returns – Cancellations:
Like ALL aftermarket DPFs, this item cannot be shipped to California. Please contact us if you are not sure this is the correct replacement, see our Shipping – Returns – Cancellations Policy in the top menu above
Have questions? Call an expert at 760-355-8900, 9am - 9pm EST
Like all aftermarket units, Cummins 4394578 DPF cannot be shipped to California
American made Skyline heavy-duty aftermarket Cummins 4394578 DPF filter meets or exceeds OEM specifications and is a direct replacement of original equipment. Skyline Emissions specializes in the design, development, and manufacture of a complete line of Cummins, Diesel Particulate Filters (DPF) and related emissions critical components. Developed by an engineering team with decades of diesel emissions control experience, Skyline DPFs combine Exact-Fit™ design with exceptional quality and extensive performance testing. Skyline means greater value because our design, state-of-the-art manufacturing and testing capability have resulted in a durable DPF with extended service life. Skyline’s Cummins aftermarket 4394578 DPF is designed and manufactured in the USA and built to last and keep your fleet running with lower operating costs.
Manufactured using high-quality cordierite substrate and precision-engineered housing, Skyline’s Cummins 4394578 / 4394578NX / 4394578RX DPF Kit ensures reliable regeneration, long service life, and seamless installation without modification. It’s an ideal replacement for fleets and owner-operators seeking dependable performance without the cost of OEM dealership pricing.
The price is for one Cummins 4394578 DPF Inlet Module; pictures are for reference only.