21534115 | Genuine Volvo® / Mack® AHI Dosing System Module

Description and Purpose:

This Genuine AHI Dosing System Module with Part number: 21534115 is made by Volvo/Mack and comes in new condition. It controls the fuel dosing in diesel exhaust systems, helping manage soot levels and support the DPF regeneration process. Designed for 12V systems, it fits heavy-duty trucks with MP7, MP8, D11, and D13 engines like Volvo VNL, VNM, and Mack Granite from 2012 to 2018.

Why Replacement is Important:

Over time, dosing modules can clog or fail, interrupting exhaust fluid injection. Replacing this part prevents breakdowns and ensures emission controls stay active, especially during long hauls.

Impact on Vehicle Performance:

When functioning properly, this AHI injector keeps your engine from derating and supports optimal torque. Faulty modules lead to performance drops and possible diagnostic errors.

Manufacturer Information:

Volvo® trucks are engineered for professional transport operators who demand quality, safety, and superior fuel economy.

Mack® trucks are trusted by fleets nationwide for hauling power, low downtime, and reliable heavy-duty performance.

Tags & Category: Aftertreatment Dosing Modules; AHI Module, Emission Sensor, Diesel Emission Control, Volvo Mack Injector, Commercial Truck Emission Part

Warranty:

Parts Finder Q offers a 365-days warranty for all types of parts in any condition. The warranty applies exclusively to purchases made directly through our website (partsfinderq.com). Please note that purchases made through third-party platforms like eBay or Amazon are not covered by this warranty.