Keep Your Emissions System Running Clean with Cummins QSB 6.7L ISB DOC Filter 2014–2018 OEM 4353362RX
What is it?
The Cummins QSB 6.7L ISB DOC Filter (OEM 4353362RX) is an essential part of your engine’s aftertreatment system. It converts harmful exhaust gases like hydrocarbons and carbon monoxide into cleaner emissions, keeping your diesel engine compliant, efficient, and environmentally friendly.
Why choose this DOC Filter?
Designed specifically for 2014–2018 Cummins QSB 6.7L and ISB engines, this filter ensures proper exhaust flow and reliable oxidation performance. If your truck or equipment shows signs of backpressure, poor fuel efficiency, or emissions-related faults, this DOC filter provides a durable, direct-fit solution.
Key Benefits
✅ Reduces harmful exhaust gases for cleaner emissions
✅ Supports proper function of downstream emissions components
✅ Helps maintain smooth engine operation and power consistency
✅ Direct-fit replacement—no modifications needed
✅ Built to meet OEM standards for longevity and dependability
Applications
Perfect for Cummins QSB 6.7L and ISB engines (2014–2018) used in trucks, buses, and heavy equipment where maintaining emissions performance and reliable operation are critical.
Installation Notes
Before installation, inspect the DOC housing and exhaust system for soot buildup or damage. Clean the surrounding components and replace any worn gaskets or clamps to ensure a secure, leak-free fit. After installation, perform an emissions check to confirm proper system performance.
Final Thoughts
When your emissions system shows signs of inefficiency or restricted flow, replacing the DOC filter is the right move. The OEM 4353362RX DOC Filter restores clean exhaust function, helping your Cummins engine run efficiently, cleanly, and within compliance standards.