Daysyore DEF Dosing Unit 22391563 21575532 21332704 21243945 0444043087 For Volvo Mack

Regular price
Regular price
Sale price
Subtotal: $249.99
10 customers are viewing this product
Free Shipping

Free shipping to the continental US

Free Returns
Free 30 days return
Vehicle Info Required to Guarantee Fit

Product Description

The dosing valve unit is a component in a vehicle's selective catalytic reduction (SCR) system that regulates the flow of diesel exhaust fluid (DEF) into the SCR catalyst. The SCR system is designed to reduce harmful nitrogen oxide (NOx) emissions from diesel engines.

The dosing valve unit is typically located between the DEF tank and the SCR catalyst and is connected to the engine's electronic control module (ECM). It works by controlling the flow of DEF into the SCR catalyst, based on signals received from the ECM. The ECM uses information from various sensors in the engine, such as the exhaust gas temperature and NOx sensors, to determine the appropriate amount of DEF to inject into the exhaust stream.

Daysyore offers the dosing valve unit to maintain optimal SCR performance and reduce harmful emissions.


OE Number: 22391563 21575532 21332704 21243945 0444043087

Weight: 1kg

Type: Aftermarket

Warranty: 12 months


Volvo Mack

Returns Policy

Thanks for choosing Daysyore. All of our Daysyore products are strictly tested by our quality inspection team before shipment, if you find any quality issue, please email us at

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

The refund will be processed within 7 working days after the receipt and validation of return. Please check your account then.


Do you ship internationally?

NO, We have our own warehouse in the United States and we only ship to the United States.

How much is the shipping?

Free shipping on all items

Shipping method?


Shipping Time?

Processing time: 1-3 Business days

Shipping time: US: 3-5 Business days

Related Products