Volvo Mack D13, D12, MP7, MP8 DOC Filter 2018-2024: OEM 22058305

Supporting Cleaner Exhaust Flow for Volvo Mack D13, D12, MP7 & MP8 Engines (2018–2024)

What is it?
The Volvo Mack D13, D12, MP7, and MP8 DOC Filter, identified by OEM 22058305, is a Diesel Oxidation Catalyst designed to serve as an important stage of the diesel aftertreatment system. As exhaust gases pass through the DOC, the catalyst helps convert carbon monoxide and unburned hydrocarbons into less harmful compounds. It also supports the exhaust conditions required by downstream components such as the Diesel Particulate Filter (DPF).

Why choose this DOC Filter?
A properly functioning DOC helps prepare exhaust gases for additional treatment further downstream. OEM 22058305 is intended for compatible Volvo Mack D13, D12, MP7, and MP8 applications, helping maintain proper integration with the existing aftertreatment assembly.

Repeated exposure to high exhaust temperatures, soot, oil residue, contaminants, and demanding operating cycles can gradually reduce catalyst effectiveness. A contaminated or damaged DOC may contribute to regeneration difficulties, emissions-related fault codes, increased exhaust restriction, or irregular aftertreatment operation.

Using the correct application-matched DOC helps restore proper exhaust treatment while maintaining the connections and configuration required by surrounding emissions components.

Key Benefits
✅ Designed for compatible Volvo Mack D13, D12, MP7, and MP8 applications
✅ Helps reduce carbon monoxide and unburned hydrocarbons in the exhaust stream
✅ Supports proper operation of downstream DPF components
✅ Helps establish suitable exhaust conditions for aftertreatment processes
✅ Maintains consistent exhaust flow through the catalyst section
✅ Designed for demanding heavy-duty operating environments

Applications
This DOC Filter is intended for compatible Volvo Mack D13, D12, MP7, and MP8 diesel engine applications associated with the 2018–2024 model range. These engine families are commonly found in heavy-duty commercial trucks, vocational vehicles, regional transportation fleets, and other demanding diesel applications. Confirm OEM number 22058305 and vehicle-specific fitment before installation.

Installation Notes
Allow the exhaust system to cool completely before beginning installation. Inspect the DPF, temperature sensors, pressure sensing components, exhaust connections, clamps, seals, and mounting hardware for soot buildup, contamination, wear, or damage. Correct any underlying engine or aftertreatment issues that could contaminate the replacement DOC. Install the unit using the appropriate seals and hardware, inspect for exhaust leaks, and verify proper aftertreatment operation after installation.

Final Thoughts
Effective oxidation at the beginning of the aftertreatment process helps downstream emissions components operate as intended. The Volvo Mack D13, D12, MP7, MP8 DOC Filter (OEM 22058305) helps maintain consistent exhaust treatment and dependable aftertreatment system operation in compatible heavy-duty applications.