Caterpillar One Box 2018-2024: OEM 470-0246

Integrated Aftertreatment Module for Caterpillar Engines (2018–2024)

What is it?
The Caterpillar One Box (OEM 470-0246) is a complete exhaust aftertreatment assembly designed for Caterpillar equipment manufactured between 2018 and 2024. Often referred to as a “One Box” system, this unit combines multiple emissions components—such as the Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), and Selective Catalytic Reduction (SCR)—into a single integrated module. 

Why choose this One Box Assembly?
Engineered to Caterpillar’s OEM specifications, this integrated module is designed to streamline emissions control by housing all major aftertreatment components in one system. Instead of servicing individual components separately, the One Box simplifies installation and maintenance. When the unit becomes restricted, damaged, or less efficient, it can lead to exhaust flow issues, regeneration problems, or emissions warnings. Replacing it with the correct OEM unit helps restore full aftertreatment functionality and system balance.

Key Benefits
✅ Integrated DOC, DPF, and SCR components in one assembly
✅ Designed for Caterpillar engines and equipment (2018–2024)
✅ Supports complete emissions control in a single module
✅ Simplifies installation and reduces system complexity
✅ Built for heavy-duty construction and industrial environments

Applications
This One Box assembly is commonly used in Caterpillar heavy equipment such as wheel loaders and excavators powered by C7.1 engines, including models like the 930M and 938M.
It is ideal for construction, mining, and industrial applications where integrated emissions systems are required to meet modern environmental standards.

Installation Notes
Before servicing, allow the exhaust system to fully cool. Remove the existing aftertreatment module and inspect surrounding components such as sensors, DEF lines, and mounting brackets. Install the replacement One Box assembly using proper clamps, seals, and mounting hardware to ensure a secure fit. After installation, reset the aftertreatment system if required and verify proper operation using diagnostic tools.

Final Thoughts
If your Caterpillar equipment is experiencing regeneration issues, exhaust restriction, or emissions-related fault codes, replacing the One Box assembly with the correct OEM unit can help restore complete aftertreatment performance. The Caterpillar One Box (OEM 470-0246) is a critical all-in-one solution for maintaining emissions compliance and reliable machine operation.