In stock
Part Number | SKU
20D0078

Cummins | Paccar International DPF | 4394577RX

Special Price $2,234.00 Regular Price $9,999.00

Aftermarket Cummins/Paccar international DPF replaces OEM 4394577RX & more. Built to OEM standards and backed by a 2-year warranty.

Cummins | Paccar International DPF | 4394577RX

Upgrade your engine’s emission control with the premium DPF 4394577RX from American Radiator. Engineered for Cummins, Paccar, and International diesel systems, this high-efficiency diesel particulate filter traps soot particles while maintaining optimal engine performance and ensuring regulatory compliance.

The 4394577RX DPF meets or exceeds OEM standards, with a robust substrate enclosed in a durable stainless steel housing. Designed for seamless, direct installation, it fits perfectly and helps reduce vehicle downtime. Its advanced filtration media delivers consistent particulate capture, preserving critical systems like the turbocharger, EGR system, and after-treatment components.

Built for durability in demanding environments, this emission control component resists excessive heat, vibration, and corrosion—providing long-term reliability and reducing maintenance needs. Its efficient design helps regenerate the exhaust system naturally while minimizing back pressure and protecting engine power.

With each International–Cummins DPF 4394577RX backed by a trusted warranty, American Radiator delivers lasting performance that supports cleaner emissions, greater engine durability, and fewer service interruptions. When your fleet’s emission system needs a dependable solution, trust this DPF to keep you running clean, compliant, and powerful—mile after mile.

Cummins | Paccar International DPF Features:

Direct-fit replacement DPF
No Core Charge - 100% new filter
ncludes new clamps and gaskets
Made in North America
Designed to meet or exceed OEM specifications
2-Year Warranty covering manufacturer defects

Please confirm your OEM or Aftermarket number matches before ordering.

2078587XS
2520173C1
2522529C91
4394577
4394577CUM
4394577NX
4394577RX
5509714
5579297
5579297CUM
5579297NX
5579297RX
5633757
5633757CUM
5633757NX
5633757RX
A064C013
CMI2520173C1
CMI2522529C91

Shipping & Returns

Famous Same-Day Shipping: In-stock items typically ship the same day when ordered by 3 PM CST Monday through Friday
30-Day Return Policy: Eligible items can be returned within 30 days (some exclusions apply)

Why Buy From American Radiator?

Trust American Radiator, your reliable source for quality cooling solutions since 2001. With roots in the industry dating back to the 1970s, our team brings decades of experience delivering high-performance radiators, charge air coolers, and DPF systems at competitive prices.

We work directly with trusted domestic and international manufacturers that supply OEM-grade components, ensuring every product meets or exceeds original equipment standards. Whether you need a heavy-duty truck radiator or a replacement for your Cummins Paccar International DPF, we’re committed to providing durable, cost-effective solutions that perform.

Have questions? Contact our experienced inside sales team at 855-658-2780 for expert guidance and fast, friendly support.

More Information
Part Number | SKU 20D0078
OEM | Aftermarket Numbers 2078587XS, 2520173C1, 2522529C91, 4394577, 4394577CUM, 4394577NX, 4394577RX, 5509714, 5579297, 5579297CUM, 5579297NX, 5579297RX, 5633757, 5633757CUM, 5633757NX, 5633757RX, A064C013, CMI2520173C1, CMI2522529C91, CMI2522529C91, CMI2522529C91

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