Cummins ISX DOC Replacement | 4353221, A047V391, 5298349 | Cummins ISX DOC

DOC Replacement for Cummins ISX OEM: 4353221, 4353221NX, 4353221RX, A047V391, 5298349, 5298349NX, A041P366, 5287231, 5287231NX, A035E398. This filter uses a gasket(s) (included) and a clamp(s) (not included).

We offer two options to fit your needs which include Brand New Filters and Remanufacturing / Exchange of Your DPF Filter / DOC / SCR Catalyst. Our emissions filters and Catalyst are made and rebuilt in the USA to meet or exceed OEM specifications. New filters include a two-year unlimited mileage warranty and come with the required gasket(s).

Brand New Option:

• Two-year unlimited mileage warranty included.
• Comes with the required gasket(s).

Remanufactured / Exchange Option:

• Reman and Exchange Service: We will rebuild your unit and ship it back to you.
• Core Swap: If available, we can collect an additional core charge prior to shipping a replacement unit.

We have created a specialized DPF Filter / DOC / SCR Catalyst cleaning remanufacturing process specifically tailored for your diesel truck or equipment needs. Don’t let engine “limp” modes destroy your wallet. A clogged filter can split or warp over time, and it will need to be replaced with a new one, which could cost thousands of dollars. Not to mention all the poor fuel mileage bills.