High Performance Diesel Emission Products


New Skyline Part Numbers!

Due to overwhelming customer demand, we have simplified our Aftermarket DPF/DOC part numbers for easier ordering and navigation of our site!

The change is simple: the new part numbers are the last six characters of the old part numbers.  For example, A-CEXH-XN1105 is now XN1105.

All DPF/DOC part number prefixes have been removed from our site, so be sure you are entering only the last six characters in our search bar in order to find your needed part. Please note that our clamp and gasket part numbers have not changed.


If you have any questions or need assistance, please...

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Skyline DPF Drop Test Video

Our 100% recyclable packaging gets the part to you. Watch our drop-test video to see how much of an impact our parts can take.

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Dealer Spotlight: Jim D's DPF Cleaning Service

Skyline Emissions is proud to feature one of our many valuable distributors: Jim D. Located in Aston, PA, Jim D’s is a fantastic company owned and operated by U.S. Navy veteran Jim Drespling.

Jim has been in the trucking business for 25+ years and has a wealth of knowledge, experience, and qualifications, including being an ASE Certified Master Heavy Truck Technician as well as a Hino Master Elite Certified Technician. At Jim D’s, all makes and models are serviced. Some of the services he performs for his customers in addition to...

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Skyline Emissions Expands National Sales Team

Montgomeryville, PA – We are pleased to announce the completion of our dynamic sales team for Skyline® Emissions. Our sales team for Skyline, a subsidiary of ESW Group®, is comprised of highly knowledgeable, experienced, and motivated individuals who are committed to building strong relationships with our valued distributors and delivering the best possible level of service. With our expanded sales team, every customer in the U.S. and Canada has access to a qualified sales representative. Our team guarantees excellent service and a smooth sales process to every one of our customers, and are happy to assist with...

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ESW Group® Opens New State-of-the-Art Facility to Build Aftermarket DOCs and DPFs in Pennsylvania

Montgomeryville, PA – ESW Group®, a leading manufacturer of Skyline™ aftermarket DPFs (Diesel Particulate Filters), DOCs (Diesel Oxidation Catalysts), is proud to announce the opening of a new production facility in Montgomeryville, Pennsylvania.

This facility is optimized to produce high quality and high volume OEM equivalent aftermarket DPF and DOC units. Skyline products are entirely designed, validated and made in the U.S.A.

DPFs and DOCs are critical components of the emission control systems of the post-2007 diesel powered trucks and buses, and have allowed a new generation...

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